{"id":470,"date":"2026-08-23T14:38:46","date_gmt":"2026-08-23T14:38:46","guid":{"rendered":"https:\/\/zhuoruilaser.com\/?page_id=470"},"modified":"2026-09-07T02:58:32","modified_gmt":"2026-09-07T02:58:32","slug":"polycarbonate","status":"publish","type":"page","link":"https:\/\/zhuoruilaser.com\/es\/materials\/plastics\/polycarbonate\/","title":{"rendered":"Marcado l\u00e1ser de policarbonato"},"content":{"rendered":"\n<style>\n.zr-page-pc{\n  --zr-text:#616379;\n  --zr-heading:#222334;\n  --zr-white:#FFFFFF;\n  --zr-primary:#B51717;\n  --zr-primary-hover:#760000;\n  --zr-line:#DCDCDE;\n  --zr-bg-light:#F5F4F5;\n  --zr-bg-dark-1:#0A0B14;\n  --zr-bg-dark-2:#222334;\n  --zr-primary-soft:rgba(181,23,23,.08);\n  --zr-heading-soft:rgba(34,35,52,.06);\n  --zr-font-heading:\"Raleway\",sans-serif;\n  --zr-font-body:\"Inter\",sans-serif;\n  --zr-font-ui:\"Be Vietnam Pro\",sans-serif;\n  --zr-container:1600px;\n  font-family:var(--zr-font-body);\n  color:var(--zr-text);\n  font-size:16px;\n  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.zr-page-pc .zr-band-item:nth-child(-n+2){border-bottom:1px solid var(--zr-line)}\n}\n@media (max-width:640px){\n  .zr-page-pc .zr-container{padding-inline:20px}\n  .zr-page-pc h1{font-size:34px}\n  .zr-page-pc h2{font-size:30px}\n  .zr-page-pc h3{font-size:23px}\n  .zr-page-pc .zr-section,.zr-page-pc .zr-cta{padding:52px 0}\n  .zr-page-pc .zr-card-grid,.zr-page-pc .zr-card-grid--2,.zr-page-pc .zr-use-list,.zr-page-pc .zr-step-grid,.zr-page-pc .zr-band,.zr-page-pc .zr-result-grid,.zr-page-pc .zr-cta-checks{grid-template-columns:1fr}\n  .zr-page-pc .zr-band-item{border-right:0;border-bottom:1px solid var(--zr-line)}\n  .zr-page-pc .zr-band-item:last-child{border-bottom:0}\n  .zr-page-pc .zr-route{grid-template-columns:1fr;gap:8px;padding:20px 18px}\n  .zr-page-pc .zr-decision-item{grid-template-columns:1fr;gap:6px}\n  .zr-page-pc .zr-btn{width:100%;text-align:center;margin-right:0}\n  .zr-page-pc .zr-subnav{position:sticky}\n  .zr-page-pc .zr-section{padding:60px 0}\n}\n<\/style>\n\n<article class=\"zr-page-pc\">\n  <section class=\"zr-hero\">\n    <div class=\"zr-container\">\n      <nav class=\"zr-breadcrumb\" aria-label=\"Breadcrumb\">\n        <a href=\"https:\/\/zhuoruilaser.com\/\">Home<\/a><span class=\"zr-sep\">\/<\/span><a href=\"https:\/\/zhuoruilaser.com\/materials\/\">Materials<\/a><span class=\"zr-sep\">\/<\/span><a href=\"https:\/\/zhuoruilaser.com\/materials\/plastics\/\">Plastics &amp; Polymers<\/a><span class=\"zr-sep\">\/<\/span><span>Polycarbonate<\/span>\n      <\/nav>\n    <\/div>\n    <div class=\"zr-container zr-hero-grid\">\n      <div>\n        <p class=\"zr-eyebrow\">PC Material Compatibility<\/p>\n        <h1>Polycarbonate Laser Marking<\/h1>\n        <p class=\"zr-hero-lead\">Polycarbonate can be laser marked, but the usable process window depends on the actual PC grade, transparency, additives, molded stress, surface condition and the result you need. This guide helps you decide what to test first, what can go wrong, how to validate the real part and how the sample result translates into machine configuration.<\/p>\n        <a class=\"zr-btn\" href=\"https:\/\/zhuoruilaser.com\/request-a-quote\/\">Request a Quote<\/a>\n        <a class=\"zr-btn zr-btn--ghost\" href=\"https:\/\/zhuoruilaser.com\/oem-custom-inquiry\/\">OEM &amp; Custom Inquiry<\/a>\n      <\/div>\n      <aside class=\"zr-hero-panel\" aria-label=\"Polycarbonate marking decision points\">\n        <img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/zhuoruilaser.com\/wp-content\/uploads\/2026\/09\/Polycarbonate-Laser-Marking.webp\" alt=\"Polycarbonate laser marking sample with engraved text and code on a clear PC surface\" width=\"1000\" height=\"600\" loading=\"eager\" fetchpriority=\"high\">\n        <h2>What Decides Whether PC Marking Works?<\/h2>\n        <ul>\n          <li>Transparent PC can require a different strategy from opaque or laser-responsive grades.<\/li>\n          <li>Yellowing, haze, bubbling and microcracking can reject an otherwise readable mark.<\/li>\n          <li>The first laser route should follow the material response and target result, not wattage alone.<\/li>\n          <li>Final approval should be made on the actual molded production part whenever possible.<\/li>\n        <\/ul>\n        <p class=\"zr-asset-note\">Polycarbonate sample image from the site media library showing text and code marking on PC. Use the actual molded production part for final contrast, haze, stress and durability approval.<\/p>\n      <\/aside>\n    <\/div>\n  <\/section>\n\n  <nav class=\"zr-subnav\" aria-label=\"Page sections\">\n    <div class=\"zr-container\">\n      <a href=\"#quick-answer\">Can PC Be Marked?<\/a>\n      <a href=\"#variables\">What Changes Results<\/a>\n      <a href=\"#applications\">Applications<\/a>\n      <a href=\"#source-selection\">Laser Route<\/a>\n      <a href=\"#risks\">Failure Modes<\/a>\n      <a href=\"#validation\">Sample Validation<\/a>\n      <a href=\"#configuration\">Machine Configuration<\/a>\n    <\/div>\n  <\/nav>\n\n  <section id=\"quick-answer\" class=\"zr-section\">\n    <div class=\"zr-container zr-split\">\n      <div class=\"zr-section-head\">\n        <p class=\"zr-eyebrow\">Quick Answer<\/p>\n        <h2>Yes, PC Can Be Laser Marked \u2014 but the Grade and Stress State Decide the Window<\/h2>\n        <p class=\"zr-lead\">For clear, white, fine-detail or appearance-sensitive PC, UV is commonly a practical first route to evaluate. Fiber or MOPA can be useful on selected opaque, colored or laser-responsive PC grades when the material absorbs effectively at the test wavelength. CO2 may create a frosted or engraved surface effect, but thermal discoloration, melt and haze require careful review.<\/p>\n        <p>The decision is not simply whether a laser can make a visible mark. The mark must also meet the required contrast, code readability, surface appearance and durability without unacceptable damage to the final molded part.<\/p>\n      <\/div>\n      <aside class=\"zr-decision-panel\" aria-label=\"Polycarbonate laser marking quick decision\">\n        <h3>Quick decision<\/h3>\n        <div class=\"zr-decision-item\"><div class=\"zr-decision-label\">Start with<\/div><p><strong>UV<\/strong> for clear, fine-detail or appearance-sensitive PC.<\/p><\/div>\n        <div class=\"zr-decision-item\"><div class=\"zr-decision-label\">Compare when<\/div><p>PC is opaque, colored or formulated to respond to 1064 nm fiber \/ MOPA.<\/p><\/div>\n        <div class=\"zr-decision-item\"><div class=\"zr-decision-label\">Reject if<\/div><p>The mark introduces unacceptable haze, yellowing, melt, microcracks or code-read failures.<\/p><\/div>\n        <a class=\"zr-text-link\" href=\"#source-selection\">See the first-test laser route<\/a>\n      <\/aside>\n    <\/div>\n  <\/section>\n\n  <section id=\"variables\" class=\"zr-section zr-section--light\">\n    <div class=\"zr-container\">\n      <div class=\"zr-section-head\">\n        <p class=\"zr-eyebrow\">Material Inputs<\/p>\n        <h2>Which Polycarbonate Variables Change Laser Marking Results?<\/h2>\n        <p class=\"zr-lead\">The name \u201cpolycarbonate\u201d is not enough for process selection. Two PC parts can respond differently because of formulation, optical state, surface finish and molding history.<\/p>\n      <\/div>\n      <div class=\"zr-card-grid\">\n        <div class=\"zr-card\"><h3>Transparency &amp; color<\/h3><p>Clear, translucent, natural, white, black and colored PC can differ in absorption and visible contrast. Transparent parts also need controlled lighting and background conditions during inspection.<\/p><\/div>\n        <div class=\"zr-card\"><h3>Additives &amp; formulation<\/h3><p>UV stabilizers, flame retardants, pigments, fillers, recycled content and laser-sensitive additives can change absorption, mark color and thermal behavior.<\/p><\/div>\n        <div class=\"zr-card\"><h3>Molded-in stress<\/h3><p>Gate areas, weld lines, thin walls, sharp corners, snap features, bosses and bent regions can be more sensitive to whitening, cracking or local deformation.<\/p><\/div>\n        <div class=\"zr-card\"><h3>Surface condition<\/h3><p>Hard coatings, printed layers, protective films, texture and gloss can change whether the process interacts with the PC itself or primarily removes or modifies a surface layer.<\/p><\/div>\n        <div class=\"zr-card\"><h3>Part thickness<\/h3><p>Thin sections can tolerate less local heat before visible distortion or stress effects appear. Thick sections may be more thermally stable but still need surface and optical review.<\/p><\/div>\n        <div class=\"zr-card\"><h3>Acceptance requirement<\/h3><p>A visible logo, a cosmetic mark and a machine-readable Data Matrix do not have the same acceptance threshold. Define the pass\/fail criteria before sample approval.<\/p><\/div>\n      <\/div>\n    <\/div>\n  <\/section>\n\n  <section id=\"applications\" class=\"zr-section\">\n    <div class=\"zr-container zr-split\">\n      <div>\n        <p class=\"zr-eyebrow\">Products &amp; Use Cases<\/p>\n        <h2>Where Is Polycarbonate Laser Marking Used?<\/h2>\n        <p class=\"zr-lead\">PC is used where impact resistance, transparency, dimensional stability or molded detail matters. Laser marking is typically considered when the part needs durable identification, traceability or product information without adding a separate label.<\/p>\n        <div class=\"zr-use-list\">\n          <div class=\"zr-use-item\"><strong>Transparent covers &amp; windows<\/strong><span>Part identification, symbols or codes while protecting optical appearance.<\/span><\/div>\n          <div class=\"zr-use-item\"><strong>Electronic housings<\/strong><span>Model information, serial numbers, traceability codes and assembly identification.<\/span><\/div>\n          <div class=\"zr-use-item\"><strong>Automotive lighting components<\/strong><span>Identification or traceability on molded covers and related PC components.<\/span><\/div>\n          <div class=\"zr-use-item\"><strong>Safety shields &amp; guards<\/strong><span>Identification, warning symbols or part information on transparent protective components.<\/span><\/div>\n          <div class=\"zr-use-item\"><strong>Instrument &amp; control parts<\/strong><span>Symbols, legends, model information and production traceability.<\/span><\/div>\n          <div class=\"zr-use-item\"><strong>Technical molded components<\/strong><span>Lot, date, component or assembly identification where label-free marking is preferred.<\/span><\/div>\n        <\/div>\n      <\/div>\n      <aside class=\"zr-card\">\n        <h3>Why the application still matters<\/h3>\n        <p>The same PC formulation can require different acceptance criteria depending on the part. Haze that is acceptable on a housing may be unacceptable inside a clear viewing or optical area.<\/p>\n        <ul class=\"zr-check-list\">\n          <li>Define where the mark sits on the finished part.<\/li>\n          <li>Separate optical and non-optical zones.<\/li>\n          <li>Confirm whether the mark is human-readable, scanner-readable or both.<\/li>\n          <li>Include cleaning, rubbing, heat or UV exposure only when relevant to the real use case.<\/li>\n        <\/ul>\n      <\/aside>\n    <\/div>\n  <\/section>\n\n  <section id=\"marking-content\" class=\"zr-section zr-section--light\">\n    <div class=\"zr-container\">\n      <div class=\"zr-section-head\">\n        <p class=\"zr-eyebrow\">Marking Content<\/p>\n        <h2>What Is Usually Marked on Polycarbonate?<\/h2>\n        <p class=\"zr-lead\">The content being marked changes the process requirement. A large logo can tolerate a different edge quality and contrast window from a small code that must be read reliably by a scanner.<\/p>\n      <\/div>\n      <div class=\"zr-band\">\n        <div class=\"zr-band-item\"><h3>Identification<\/h3><p>Part numbers, model numbers, serial numbers and product identifiers.<\/p><\/div>\n        <div class=\"zr-band-item\"><h3>Traceability<\/h3><p>Lot codes, batch codes, date codes, QR codes, Data Matrix and barcodes.<\/p><\/div>\n        <div class=\"zr-band-item\"><h3>Product information<\/h3><p>Symbols, operating identifiers, logos and assembly marks.<\/p><\/div>\n        <div class=\"zr-band-item\"><h3>Inspection-critical codes<\/h3><p>Small machine-readable codes where edge definition, quiet zone and scanner setup matter.<\/p><\/div>\n      <\/div>\n      <figure class=\"zr-inline-evidence\">\n        <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/zhuoruilaser.com\/wp-content\/uploads\/2026\/09\/Laser-Marking-on-Plastics-Polymers.webp\" alt=\"Laser-marked plastic component with a Data Matrix code and numeric identifier\" width=\"1000\" height=\"600\" loading=\"lazy\">\n        <figcaption class=\"zr-asset-note\">Representative plastic traceability example showing a machine-readable code and numeric identifier. It illustrates marking-content and readability requirements; it is not presented as a confirmed PC sample.<\/figcaption>\n      <\/figure>\n      <div class=\"zr-note\"><strong>Decision point:<\/strong> Fine text and machine-readable codes should be validated differently from a simple visible logo. Define code size, line width, scanner and inspection lighting before the final process is approved.<\/div>\n    <\/div>\n  <\/section>\n\n  <section id=\"results\" class=\"zr-section\">\n    <div class=\"zr-container\">\n      <div class=\"zr-section-head\">\n        <p class=\"zr-eyebrow\">Desired Marking Result<\/p>\n        <h2>What Result Do You Need on the PC Part?<\/h2>\n        <p class=\"zr-lead\">Choose the acceptance target before the laser route. Contrast, tactile change, optical appearance and code readability create different process windows.<\/p>\n      <\/div>\n      <div class=\"zr-result-grid\">\n        <article class=\"zr-result-card\"><h3>Dark visible mark<\/h3><p>Typical for light or natural PC identification.<\/p><dl><dt>Watch for<\/dt><dd>Brown halo, excess heat and weak contrast.<\/dd><dt>Test focus<\/dt><dd>Material response, pulse strategy and heat accumulation.<\/dd><\/dl><\/article>\n        <article class=\"zr-result-card\"><h3>Light \/ frosted mark<\/h3><p>Useful on dark, colored or transparent PC.<\/p><dl><dt>Watch for<\/dt><dd>Haze, viewing-angle dependence and surface texture.<\/dd><dt>Test focus<\/dt><dd>Inspect under the real lighting and background condition.<\/dd><\/dl><\/article>\n        <article class=\"zr-result-card\"><h3>Fine low-tactile mark<\/h3><p>For cosmetic housings, covers and small text.<\/p><dl><dt>Watch for<\/dt><dd>Surface disturbance and soft edge definition.<\/dd><dt>Test focus<\/dt><dd>Prioritize a controlled fine-marking window over visible depth.<\/dd><\/dl><\/article>\n        <article class=\"zr-result-card\"><h3>QR \/ Data Matrix<\/h3><p>For traceability and identification.<\/p><dl><dt>Watch for<\/dt><dd>Cell definition, contrast and scanner inconsistency.<\/dd><dt>Test focus<\/dt><dd>Validate with the intended scanner and inspection setup.<\/dd><\/dl><\/article>\n        <article class=\"zr-result-card\"><h3>Shallow engraving<\/h3><p>For non-optical surfaces where tactile change is acceptable.<\/p><dl><dt>Watch for<\/dt><dd>Melt, roughness, discoloration and edge quality.<\/dd><dt>Test focus<\/dt><dd>Confirm that added depth is actually required.<\/dd><\/dl><\/article>\n        <article class=\"zr-result-card\"><h3>Subsurface \/ internal effect<\/h3><p>A specialized route for selected transparent applications.<\/p><dl><dt>Watch for<\/dt><dd>Optical-path suitability and unintended internal damage.<\/dd><dt>Test focus<\/dt><dd>Do not assume standard surface-marking capability applies.<\/dd><\/dl><\/article>\n      <\/div>\n    <\/div>\n  <\/section>\n\n  <section id=\"geometry\" class=\"zr-section zr-section--light\">\n    <div class=\"zr-container\">\n      <div class=\"zr-section-head\">\n        <p class=\"zr-eyebrow\">Part Geometry<\/p>\n        <h2>How Do Shape, Wall Thickness and Part Size Change PC Laser Marking?<\/h2>\n        <p class=\"zr-lead\">A process that looks stable on a flat coupon may behave differently on the final molded part. Geometry changes local stress, heat tolerance, focus and positioning requirements.<\/p>\n      <\/div>\n      <div class=\"zr-card-grid zr-card-grid--2\">\n        <div class=\"zr-card\"><h3>Thin walls &amp; edges<\/h3><p>Thin sections, edges and narrow ribs can be more sensitive to local heat, deformation and stress whitening. These areas should be included in the real-part sample test.<\/p><\/div>\n        <div class=\"zr-card\"><h3>Gates, bosses, snaps &amp; stressed zones<\/h3><p>Molded-in stress can make some areas more vulnerable to microcracking. For transparent molded PC, polarized-light stress inspection can be useful when residual stress is a concern.<\/p><\/div>\n        <div class=\"zr-card\"><h3>Curved or height-varying surfaces<\/h3><p>Curvature and height variation change focus and spot size across the mark. Stable production may require a fixture, controlled part orientation, focus compensation or evaluation of a 3D marking approach.<\/p><\/div>\n        <div class=\"zr-card\"><h3>Large parts &amp; restricted mark areas<\/h3><p>Part size affects machine access, working distance, marking field and lens choice. Large PC parts may also need dedicated positioning or fixturing even when the mark itself is small.<\/p><\/div>\n      <\/div>\n      <div class=\"zr-note\"><strong>Optical-zone rule:<\/strong> Do not judge a clear PC lens, window or cover only by whether the mark is readable. Haze, scatter and cosmetic disturbance around the mark may be the real rejection criteria.<\/div>\n    <\/div>\n  <\/section>\n\n  <section id=\"transparent-pc\" class=\"zr-section zr-section--dark\">\n    <div class=\"zr-container\">\n      <div class=\"zr-section-head\">\n        <p class=\"zr-eyebrow\">Transparent PC<\/p>\n        <h2>Clear Polycarbonate Needs Defined Viewing Conditions<\/h2>\n        <p class=\"zr-lead\">A mark on transparent PC can look different with background color, transmitted light, reflection and viewing angle. For lenses, covers and windows, the inspection method is part of the process.<\/p>\n      <\/div>\n      <div class=\"zr-card-grid\">\n        <div class=\"zr-card zr-card--soft\"><h3>Control the background<\/h3><p>Check the mark against the light and dark backgrounds used in real inspection. A frosted mark may look strong in one condition and weak in another.<\/p><\/div>\n        <div class=\"zr-card zr-card--soft\"><h3>Protect optical areas<\/h3><p>Review haze, scatter, distortion and surface texture around the mark. Effects tolerated on a housing may be unacceptable on an optical or viewing zone.<\/p><\/div>\n        <div class=\"zr-card zr-card--soft\"><h3>Verify code reading<\/h3><p>For QR or Data Matrix marks, define scanner type, lighting, angle and whether the code is read directly or through the transparent part.<\/p><\/div>\n      <\/div>\n    <\/div>\n  <\/section>\n\n  <section id=\"source-selection\" class=\"zr-section\">\n    <div class=\"zr-container zr-split\">\n      <div>\n        <p class=\"zr-eyebrow\">First-Test Laser Route<\/p>\n        <h2>Which Laser Should You Test First on Polycarbonate?<\/h2>\n        <p class=\"zr-lead\">Do not choose by wattage alone. Start with the PC formulation, optical state, target effect and acceptable thermal damage, then compare only the routes that make sense for that part.<\/p>\n        <div class=\"zr-route-grid\">\n          <div class=\"zr-route zr-route--primary\"><div class=\"zr-route-label\">Clear \/ fine \/ appearance-sensitive PC<\/div><p><a href=\"https:\/\/zhuoruilaser.com\/products\/uv-laser-marking-machines\/\">UV laser marking<\/a> is commonly a practical first route to evaluate. Confirm contrast, haze and stress response on the real part.<\/p><\/div>\n          <div class=\"zr-route\"><div class=\"zr-route-label\">Opaque \/ colored \/ laser-responsive PC<\/div><p>Compare UV with <a href=\"https:\/\/zhuoruilaser.com\/products\/fiber-laser-marking-machines\/\">fiber or MOPA fiber<\/a> when the material shows useful absorption and contrast. Do not assume every unmodified PC grade will respond well at 1064 nm.<\/p><\/div>\n          <div class=\"zr-route\"><div class=\"zr-route-label\">Selected transparent or special grades<\/div><p>Green laser can be a secondary comparison route when the UV or 1064 nm result does not meet the target. Suitability is sample-dependent.<\/p><\/div>\n          <div class=\"zr-route\"><div class=\"zr-route-label\">Frosting \/ shallow engraving acceptable<\/div><p><a href=\"https:\/\/zhuoruilaser.com\/products\/co2-laser-marking-machines\/\">CO2 marking or engraving<\/a> can be evaluated where tactile or surface change is acceptable, with particular attention to yellowing, browning, melt and haze.<\/p><\/div>\n          <div class=\"zr-route\"><div class=\"zr-route-label\">Grade or additive package unknown<\/div><p>Use a small comparative sample matrix rather than locking a machine route from the polymer name alone.<\/p><\/div>\n        <\/div>\n      <\/div>\n      <figure class=\"zr-media-card zr-media-card--contain\">\n        <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/zhuoruilaser.com\/wp-content\/uploads\/2026\/09\/UV-Laser-Marking-Machines.webp\" alt=\"UV laser marking machine shown as a practical first-test equipment direction for fine and appearance-sensitive polycarbonate marking\" width=\"1000\" height=\"600\" loading=\"lazy\">\n        <figcaption class=\"zr-asset-note\">UV is a practical first route to evaluate for clear, fine-detail or appearance-sensitive PC. Final machine selection still follows the real sample result, field size, part geometry and production requirements.<\/figcaption>\n      <\/figure>\n    <\/div>\n  <\/section>\n\n  <section id=\"risks\" class=\"zr-section zr-section--light\">\n    <div class=\"zr-container\">\n      <div class=\"zr-section-head\">\n        <p class=\"zr-eyebrow\">Risks &amp; Failure Modes<\/p>\n        <h2>What Commonly Causes a PC Mark to Fail?<\/h2>\n        <p class=\"zr-lead\">A readable mark can still be unacceptable if the surrounding PC changes color, becomes hazy, melts or cracks. Failure review should include the material, the mark zone and the final inspection condition.<\/p>\n      <\/div>\n      <div class=\"zr-table-wrap\">\n        <table>\n          <caption>Polycarbonate laser marking risk review<\/caption>\n          <thead>\n            <tr><th scope=\"col\">Risk<\/th><th scope=\"col\">Typical symptom<\/th><th scope=\"col\">What to check<\/th><th scope=\"col\">Process response<\/th><\/tr>\n          <\/thead>\n          <tbody>\n            <tr><td>Yellowing or browning<\/td><td>Warm-colored halo or degraded-looking edge around the mark<\/td><td>PC grade, heat input, pass count, focus and thermal route<\/td><td>Reduce accumulated heat, compare a different pulse or source route, and retest on the final sample<\/td><\/tr>\n            <tr><td>Surface haze<\/td><td>Unwanted cloudy area on clear PC<\/td><td>Background, lighting, optical function and affected area around the mark<\/td><td>Define a visual acceptance condition and protect optical zones<\/td><\/tr>\n            <tr><td>Bubbling or melt<\/td><td>Raised, glossy, rough or locally deformed surface<\/td><td>Power density, dwell time, overlap, focus and wall thickness<\/td><td>Reduce local energy accumulation and retest the process window<\/td><\/tr>\n            <tr><td>Microcracking<\/td><td>Fine cracks near the mark, edge or stressed molded feature<\/td><td>Gate, weld line, snap, boss, bend, thin section and residual stress<\/td><td>Move the mark if possible, reduce heat input, support the part and review stress-sensitive zones<\/td><\/tr>\n            <tr><td>Weak readability<\/td><td>Mark is visible only at certain angles or scans inconsistently<\/td><td>Transparent substrate, code size, contrast, background and inspection lighting<\/td><td>Use a fixed inspection setup and verify with the intended scanner<\/td><\/tr>\n            <tr><td>Fume and residue<\/td><td>Odor, particles or polymer residue during marking<\/td><td>PC safety information, additives, coatings and amount of material removed<\/td><td>Use suitable local extraction and filtration; review unknown materials before processing<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n    <\/div>\n  <\/section>\n\n  <section id=\"validation\" class=\"zr-section\">\n    <div class=\"zr-container\">\n      <div class=\"zr-section-head\">\n        <p class=\"zr-eyebrow\">Real-Sample Validation<\/p>\n        <h2>How Do You Confirm the Result on the Actual PC Part?<\/h2>\n        <p class=\"zr-lead\">A single \u201cgood-looking\u201d mark is not enough to lock the process. Use a controlled sample matrix and judge the result against the same appearance, readability and durability requirements used in production.<\/p>\n      <\/div>\n      <div class=\"zr-step-grid\">\n        <div class=\"zr-step\"><span class=\"zr-number\">1<\/span><h3>Run a parameter matrix<\/h3><p>Compare several controlled settings instead of approving the first visible mark. Record the combinations that produce acceptable contrast without unacceptable damage.<\/p><\/div>\n        <div class=\"zr-step\"><span class=\"zr-number\">2<\/span><h3>Inspect visible damage<\/h3><p>Check yellowing, browning, halo, melt, bubbling, roughness, whitening and unintended frosting around the marked area.<\/p><\/div>\n        <div class=\"zr-step\"><span class=\"zr-number\">3<\/span><h3>Check transparent PC separately<\/h3><p>Inspect against the real light and dark backgrounds, viewing angles and transmitted-light conditions used in the product.<\/p><\/div>\n        <div class=\"zr-step\"><span class=\"zr-number\">4<\/span><h3>Review stress-sensitive zones<\/h3><p>Include gates, weld lines, snaps, bosses, corners, thin walls and bent regions. Polarized-light inspection may help reveal residual stress in transparent molded parts.<\/p><\/div>\n        <div class=\"zr-step\"><span class=\"zr-number\">5<\/span><h3>Verify code readability<\/h3><p>For QR or Data Matrix, use the intended scanner, lighting and code size rather than relying only on a photo of the mark.<\/p><\/div>\n        <div class=\"zr-step\"><span class=\"zr-number\">6<\/span><h3>Test only relevant durability<\/h3><p>Where the application requires it, confirm rubbing, cleaning, heat, UV exposure, chemical contact or sterilization resistance under an agreed method.<\/p><\/div>\n      <\/div>\n      <div class=\"zr-note\">\n        <strong>When to stop and re-test:<\/strong> Do not lock the machine configuration if acceptable contrast exists only in a very narrow parameter window, yellowing or microcracking appears close to the usable setting, code readability varies significantly between parts, stressed areas respond differently from flat areas, or normal part-to-part variation cannot stay inside the acceptance criteria. Resolve the material, molding or process variation before treating the sample as production-approved.\n      <\/div>\n    <\/div>\n  <\/section>\n\n  <section id=\"configuration\" class=\"zr-section zr-section--light\">\n    <div class=\"zr-container zr-split\">\n      <div>\n        <p class=\"zr-eyebrow\">Machine Configuration<\/p>\n        <h2>How Does the PC Sample Result Become a Machine Configuration?<\/h2>\n        <p class=\"zr-lead\">The sample result determines more than the laser source. Final configuration should also reflect mark size, part geometry, positioning, production handling and safety requirements.<\/p>\n        <div class=\"zr-table-wrap\">\n          <table>\n            <caption>From PC requirement to machine configuration<\/caption>\n            <thead><tr><th scope=\"col\">PC requirement<\/th><th scope=\"col\">Configuration implication<\/th><\/tr><\/thead>\n            <tbody>\n              <tr><td>Clear, fine or appearance-sensitive marking<\/td><td>Evaluate UV first and confirm the required field size, working distance and optical acceptance window.<\/td><\/tr>\n              <tr><td>Opaque or laser-responsive PC<\/td><td>Compare UV with fiber\/MOPA only when the material response supports a stable contrast window.<\/td><\/tr>\n              <tr><td>Large flat component<\/td><td>Confirm marking field, lens choice, part clearance and how the mark area will be positioned.<\/td><\/tr>\n              <tr><td>Curved or height-varying surface<\/td><td>Review fixturing, focus tolerance and whether height compensation or 3D marking evaluation is needed.<\/td><\/tr>\n              <tr><td>Small repeated molded parts<\/td><td>Fixture design and repeatable orientation may be more important than increasing laser power.<\/td><\/tr>\n              <tr><td>Variable orientation or location<\/td><td>Vision can be evaluated for identification and positioning, but it does not automatically solve focus or height variation.<\/td><\/tr>\n              <tr><td>High throughput or short takt time<\/td><td>Define the target cycle time or parts per hour and evaluate marking time, loading\/unloading and the full production cycle separately. Higher laser power alone does not guarantee the required throughput.<\/td><\/tr>\n              <tr><td>Smoke, odor or residue<\/td><td>Include suitable extraction and filtration in the system review.<\/td><\/tr>\n              <tr><td>Operator exposure control<\/td><td>Review enclosure, interlock and complete-system safety configuration rather than assuming enclosure alone defines the final laser class.<\/td><\/tr>\n            <\/tbody>\n          <\/table>\n        <\/div>\n      <\/div>\n      <aside class=\"zr-card\">\n        <h3>What to send for a useful recommendation<\/h3>\n        <ul class=\"zr-check-list\">\n          <li>PC grade or supplier information if known.<\/li>\n          <li>Actual molded part or same-grade molded sample.<\/li>\n          <li>Color, transparency, coating and additive information if available.<\/li>\n          <li>Mark content, size, location and code type.<\/li>\n          <li>Target effect and pass\/fail appearance criteria.<\/li>\n          <li>Part dimensions, wall thickness and any curved or stressed features near the mark.<\/li>\n          <li>Scanner, lighting or durability requirement where relevant.<\/li>\n          <li>Target cycle time or required parts per hour if production throughput matters.<\/li>\n          <li>Expected handling method, production quantity or integration requirement if it affects machine configuration.<\/li>\n        <\/ul>\n        <a class=\"zr-btn\" href=\"https:\/\/zhuoruilaser.com\/request-a-quote\/\">Request a Quote<\/a>\n      <\/aside>\n    <\/div>\n  <\/section>\n\n  <section class=\"zr-section\">\n    <div class=\"zr-container\">\n      <div class=\"zr-section-head\">\n        <p class=\"zr-eyebrow\">Related Material Pages<\/p>\n        <h2>Comparing PC with Other Plastics?<\/h2>\n        <p class=\"zr-lead\">If the resin family is still being selected, compare PC with nearby plastics based on the actual formulation, surface and marking target rather than assuming the same laser route will transfer directly.<\/p>\n      <\/div>\n      <div class=\"zr-card-grid\">\n        <div class=\"zr-card\"><h3><a href=\"https:\/\/zhuoruilaser.com\/materials\/plastics\/\">Plastics &amp; Polymers<\/a><\/h3><p>Use the plastics material hub when the resin family is not final or several plastic types need to be screened.<\/p><\/div>\n        <div class=\"zr-card\"><h3><a href=\"https:\/\/zhuoruilaser.com\/materials\/plastics\/abs\/\">ABS Laser Marking<\/a><\/h3><p>Compare with ABS for molded housings and covers where formulation, contrast response and thermal behavior differ from PC.<\/p><\/div>\n        <div class=\"zr-card\"><h3><a href=\"https:\/\/zhuoruilaser.com\/materials\/plastics\/polypropylene\/\">Polypropylene Laser Marking<\/a><\/h3><p>Compare with PP when the application uses lightweight molded parts, caps or packaging components with different absorption behavior.<\/p><\/div>\n      <\/div>\n    <\/div>\n  <\/section>\n\n  <section id=\"faq\" class=\"zr-section zr-section--light\">\n    <div class=\"zr-container\">\n      <div class=\"zr-section-head\">\n        <p class=\"zr-eyebrow\">FAQs<\/p>\n        <h2>Polycarbonate Laser Marking Questions<\/h2>\n      <\/div>\n      <details>\n        <summary>Can clear polycarbonate be laser marked?<\/summary>\n        <p>Yes, but clear PC needs sample testing. UV is commonly a practical first route to evaluate for fine or appearance-sensitive marking, and the result should be checked under defined lighting and background conditions.<\/p>\n      <\/details>\n      <details>\n        <summary>Why does PC sometimes turn yellow or brown during laser marking?<\/summary>\n        <p>Yellowing or browning can indicate excessive thermal effect or material degradation. The risk changes with laser source, pulse behavior, accumulated heat, pass count, focus and the PC formulation.<\/p>\n      <\/details>\n      <details>\n        <summary>Is MOPA fiber suitable for polycarbonate?<\/summary>\n        <p>It can be suitable for selected opaque, colored or laser-responsive PC grades where 1064 nm absorption and pulse tuning produce an acceptable result. It should not be assumed to work well on every clear or unmodified PC part.<\/p>\n      <\/details>\n      <details>\n        <summary>Can laser marking crack polycarbonate?<\/summary>\n        <p>It can when the material or molded part is stress-sensitive and the local process window is too aggressive. Gates, weld lines, edges, snap fits, bosses, thin walls and bent regions deserve particular attention during sample validation.<\/p>\n      <\/details>\n      <details>\n        <summary>Should I choose a 3W, 5W or higher-power laser for PC?<\/summary>\n        <p>Do not select the machine from wattage alone. First confirm the laser route and acceptable marking window on the actual PC part, then size the source, field, lens and machine configuration around the required mark and production task.<\/p>\n      <\/details>\n    <\/div>\n  <\/section>\n\n  <section class=\"zr-cta\">\n    <div class=\"zr-container zr-cta-grid\">\n      <div>\n        <p class=\"zr-eyebrow\">PC Sample Review<\/p>\n        <h2>Send the Exact Polycarbonate Part Before Choosing the Machine<\/h2>\n        <p class=\"zr-lead\">Zhuorui Laser can review the PC grade, optical state, mark target, part geometry and acceptance requirement, then compare suitable laser routes and translate the approved sample result into a practical machine configuration.<\/p>\n        <a class=\"zr-btn\" href=\"https:\/\/zhuoruilaser.com\/request-a-quote\/\">Request a Quote<\/a>\n        <a class=\"zr-btn zr-btn--ghost\" href=\"https:\/\/zhuoruilaser.com\/contact-us\/\">Contact Us<\/a>\n      <\/div>\n      <ul class=\"zr-cta-checks\" aria-label=\"Useful files and information for PC sample review\">\n        <li>Actual molded PC part<\/li>\n        <li>Grade \/ supplier if known<\/li>\n        <li>Mark artwork or code<\/li>\n        <li>Required mark size<\/li>\n        <li>Pass \/ fail criteria<\/li>\n        <li>Part dimensions<\/li>\n        <li>Target cycle time \/ parts per hour<\/li>\n      <\/ul>\n    <\/div>\n  <\/section>\n<\/article>\n","protected":false},"excerpt":{"rendered":"<p>Home\/Materials\/Plastics &amp; Polymers\/Polycarbonate PC Material Compatibility Polycarbonate Laser Marking Polycarbonate can be laser marked, but the usable process window depends [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":323,"menu_order":38,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"site-sidebar-layout":"no-sidebar","site-content-layout":"","ast-site-content-layout":"full-width-container","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-470","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/zhuoruilaser.com\/es\/wp-json\/wp\/v2\/pages\/470","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zhuoruilaser.com\/es\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/zhuoruilaser.com\/es\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/zhuoruilaser.com\/es\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/zhuoruilaser.com\/es\/wp-json\/wp\/v2\/comments?post=470"}],"version-history":[{"count":9,"href":"https:\/\/zhuoruilaser.com\/es\/wp-json\/wp\/v2\/pages\/470\/revisions"}],"predecessor-version":[{"id":3937,"href":"https:\/\/zhuoruilaser.com\/es\/wp-json\/wp\/v2\/pages\/470\/revisions\/3937"}],"up":[{"embeddable":true,"href":"https:\/\/zhuoruilaser.com\/es\/wp-json\/wp\/v2\/pages\/323"}],"wp:attachment":[{"href":"https:\/\/zhuoruilaser.com\/es\/wp-json\/wp\/v2\/media?parent=470"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}