{"id":25486,"date":"2026-10-25T11:25:50","date_gmt":"2026-10-25T03:25:50","guid":{"rendered":"https:\/\/www.sanait.com\/?p=25486"},"modified":"2026-10-25T11:25:54","modified_gmt":"2026-10-25T03:25:54","slug":"perspex-lucite-plexiglass","status":"publish","type":"post","link":"https:\/\/www.sanait.com\/es\/perspex-lucite-plexiglass\/","title":{"rendered":"Perspex, Lucite y Plexiglass: una gu\u00eda de nombres del acr\u00edlico"},"content":{"rendered":"\n<style>\n\/* Sanait Guide \u2014 Perspex Lucite Plexiglass\n   Scope all rules under .sa-guide so the block does not fight the WP theme. *\/\n.sa-guide {\n  --sa-ink: #1c2430;\n  --sa-muted: #5b6573;\n  --sa-line: #d9dee6;\n  --sa-paper: #f6f4ef;\n  --sa-card: #ffffff;\n  --sa-accent: #1f5f5b;\n  --sa-accent-soft: #e6f1f0;\n  --sa-warn: #8a5a12;\n  --sa-warn-soft: #f7eedf;\n  --sa-max: 760px;\n  color: var(--sa-ink);\n  font-family: Georgia, \"Times New Roman\", Times, serif;\n  font-size: 18px;\n  line-height: 1.65;\n  letter-spacing: 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class=\"sa-chip\">Material guide<\/span>\n      <span>Trade names<\/span>\n    <\/p>\n\n    <p class=\"sa-meta\">By David Deng \u00b7 R&#038;D manager, Sanait \u00b7 Updated October 2026<\/p>\n\n    <p class=\"sa-lede\">Perspex, Lucite, and Plexiglass are not three plastics. They are trade names for acrylic sheet \u2014 poly(methyl methacrylate), PMMA. Buyers use whichever name their market grew up with. A factory that only reads the nickname can still ship the wrong route, because none of the three words says cast or extruded.<\/p>\n\n    <aside class=\"sa-takeaway\" aria-label=\"Key takeaways\">\n      <h2>Key takeaways<\/h2>\n      <ul>\n        <li>Perspex, Lucite, and Plexiglass (Plexiglas) are acrylic brand names used as ordinary words.<\/li>\n        <li>All three, in a display brief, mean PMMA unless the sender says otherwise.<\/li>\n        <li>The name does not state brand authenticity, cast versus extruded, thickness, or grade.<\/li>\n        <li>Regional habit differs: Perspex is common in UK-linked buying, Lucite in some US and specialty use, Plexiglass almost everywhere.<\/li>\n        <li>None of them means polycarbonate, and none of them means glass.<\/li>\n        <li>On the drawing, write PMMA, cast or extruded, and thickness. Keep the trade name as a note.<\/li>\n      <\/ul>\n    <\/aside>\n\n    <nav class=\"sa-toc\" aria-label=\"On this page\">\n      <h2>On this page<\/h2>\n      <ol>\n        <li><a href=\"#answer\">The short answer<\/a><\/li>\n        <li><a href=\"#three-names\">The three names<\/a><\/li>\n        <li><a href=\"#table\">What each word does and does not say<\/a><\/li>\n        <li><a href=\"#region\">Why the word changes by market<\/a><\/li>\n        <li><a href=\"#not-other\">What they are not<\/a><\/li>\n        <li><a href=\"#specify\">What to write on the RFQ<\/a><\/li>\n        <li><a href=\"#faq\">FAQ<\/a><\/li>\n        <li><a href=\"#sources\">Sources<\/a><\/li>\n      <\/ol>\n    <\/nav>\n\n    <h2 id=\"answer\">The short answer<\/h2>\n\n    <div class=\"sa-def\">\n      <p><strong>Working answer.<\/strong> Perspex, Lucite, and Plexiglass are names for acrylic. Treat a brief that uses any of them as a PMMA request, then ask cast or extruded. Do not price them as three materials, and do not assume the named brand is the sheet that will be used unless the quote says so.<\/p>\n    <\/div>\n\n    <h2 id=\"three-names\">The three names<\/h2>\n\n    <p><strong>Plexiglass<\/strong> is the everyday spelling of Plexiglas, an acrylic brand that became the generic word in much of English. An email that says plexiglass almost always means \u201cclear acrylic sheet,\u201d not a specific mill.<\/p>\n\n    <p><strong>Perspex<\/strong> is another acrylic brand name, heard most often from UK-linked buyers and from older specifications. In a display RFQ it still means PMMA. It does not, by itself, mean a particular thickness or a cell-cast sheet.<\/p>\n\n    <p><strong>Lucite<\/strong> is a further acrylic brand name, still met on blocks, awards, and some US briefs. Again the polymer is PMMA. A \u201cLucite cube\u201d in a retail brief is an acrylic cube until the sender names a brand and a grade.<\/p>\n\n    <p>Other names exist \u2014 Acrylite is one buyers also meet. The pattern is the same: brand first, generic later, polymer unchanged.<\/p>\n\n    <h2 id=\"table\">What each word does and does not say<\/h2>\n\n    <div class=\"sa-table-wrap\">\n      <table>\n        <caption>Trade name versus what a factory still has to know<\/caption>\n        <thead>\n          <tr>\n            <th scope=\"col\">Word on the email<\/th>\n            <th scope=\"col\">Safe reading<\/th>\n            <th scope=\"col\">Still unstated<\/th>\n          <\/tr>\n        <\/thead>\n        <tbody>\n          <tr>\n            <th scope=\"row\">Plexiglass \/ Plexiglas<\/th>\n            <td>Acrylic sheet, PMMA<\/td>\n            <td>This brand or generic; cast or extruded; thickness<\/td>\n          <\/tr>\n          <tr>\n            <th scope=\"row\">Perspex<\/th>\n            <td>Acrylic sheet, PMMA<\/td>\n            <td>Same gaps; common in UK-linked specs<\/td>\n          <\/tr>\n          <tr>\n            <th scope=\"row\">Lucite<\/th>\n            <td>Acrylic, PMMA \u2014 often a block or a cube in casual use<\/td>\n            <td>Sheet or block; brand or generic; grade<\/td>\n          <\/tr>\n          <tr>\n            <th scope=\"row\">Acrylic \/ PMMA<\/th>\n            <td>The material, without a brand<\/td>\n            <td>Route, thickness, tint, finish<\/td>\n          <\/tr>\n        <\/tbody>\n      <\/table>\n    <\/div>\n\n    <p>ISO 7823-1 is the cast PMMA sheet standard. ISO 7823-2 is the extruded one. Neither standard is implied by Perspex, Lucite, or Plexiglass. If the face will be polished or solvent-bonded, the route matters more than which nickname arrived in the subject line.<\/p>\n\n    <h2 id=\"region\">Why the word changes by market<\/h2>\n\n    <p>The split is habit, not chemistry.<\/p>\n    <ul>\n      <li>A UK or Commonwealth buyer often writes Perspex and means the acrylic they have always specified.<\/li>\n      <li>A US buyer often writes Plexiglass, or Lucite when the part is a block, an award, or an embedment.<\/li>\n      <li>A factory in a third country may stock none of those brands and still make the part in PMMA.<\/li>\n    <\/ul>\n\n    <p>Translating the word and then asking two questions \u2014 PMMA, and cast or extruded \u2014 avoids a false \u201cwe don\u2019t have Perspex\u201d refusal, and avoids a silent generic substitution when the brand was actually required.<\/p>\n\n    <h2 id=\"not-other\">What they are not<\/h2>\n\n    <ul>\n      <li>Not glass. The \u201cglass\u201d in Plexiglass is a nickname. Scratch behavior, weight, and breakage stay those of PMMA, and still depend on grade and thickness.<\/li>\n      <li>Not polycarbonate. Lexan is a polycarbonate name. A clear photo does not separate them.<\/li>\n      <li>Not a performance claim. Writing Lucite or Perspex on a drawing does not set light transmission, impact, or outdoor life. Those need a grade and a method, or they should not be quoted as numbers.<\/li>\n      <li>Not a guarantee of that brand. Unless the quote names the mill and the grade, \u201cPerspex\u201d on the RFQ is a material request, not a brand lock.<\/li>\n    <\/ul>\n\n    <h2 id=\"specify\">What to write on the RFQ<\/h2>\n\n    <ol>\n      <li>Polymer: PMMA \/ acrylic.<\/li>\n      <li>Route: cast or extruded.<\/li>\n      <li>Thickness by member, colorless or tint.<\/li>\n      <li>Edge and joint, if it is a case or a stand.<\/li>\n      <li>Brand only if you truly require that mill \u2014 and then name the grade, not just Perspex or Lucite.<\/li>\n    <\/ol>\n\n    <p>A plain-language note is fine: \u201cacrylic, also called Perspex \/ Plexiglass in our market.\u201d That line aligns a buyer and a factory. It is not the specification.<\/p>\n\n    <p>Sanait fabricates acrylic displays, boxes, and trays in Dongguan. A brief that says Perspex, Lucite, or Plexiglass is read as PMMA unless you say another polymer. How a brief is taken is on the <a href=\"https:\/\/www.sanait.com\/faq\/\">FAQ<\/a>. Scope is on the <a href=\"https:\/\/www.sanait.com\/about-us\/\">about page<\/a>. Typical parts: <a href=\"https:\/\/www.sanait.com\/custom-acrylic-boxes\/\">boxes<\/a>, <a href=\"https:\/\/www.sanait.com\/custom-acrylic-trays\/\">trays<\/a>, and <a href=\"https:\/\/www.sanait.com\/\">stands<\/a>.<\/p>\n\n    <h2 id=\"faq\">FAQ<\/h2>\n\n    <div class=\"sa-faq\">\n      <div class=\"sa-faq-item\">\n        <h3 class=\"sa-faq-q\">Are Perspex, Lucite, and Plexiglass the same?<\/h3>\n        <p class=\"sa-faq-a\">Same polymer family: acrylic, PMMA. Different trade names. Not automatically the same brand, grade, or cast-versus-extruded route.<\/p>\n      <\/div>\n      <div class=\"sa-faq-item\">\n        <h3 class=\"sa-faq-q\">Which name should I use with a factory?<\/h3>\n        <p class=\"sa-faq-a\">Acrylic or PMMA. Add the trade name your team uses, as a note, so nobody thinks you changed materials.<\/p>\n      <\/div>\n      <div class=\"sa-faq-item\">\n        <h3 class=\"sa-faq-q\">If I write Perspex, will I get that brand?<\/h3>\n        <p class=\"sa-faq-a\">Only if the quote says so. Otherwise you should expect PMMA of the route you specified, which may be a different mill.<\/p>\n      <\/div>\n      <div class=\"sa-faq-item\">\n        <h3 class=\"sa-faq-q\">Is Lucite better than Plexiglass?<\/h3>\n        <p class=\"sa-faq-a\">The names do not rank the sheet. Cast versus extruded, grade, and thickness do. A brand name without a grade is not a quality tier.<\/p>\n      <\/div>\n      <div class=\"sa-faq-item\">\n        <h3 class=\"sa-faq-q\">Is any of them polycarbonate?<\/h3>\n        <p class=\"sa-faq-a\">No. Polycarbonate is a different polymer. Lexan is a polycarbonate trade name, not an acrylic one.<\/p>\n      <\/div>\n      <div class=\"sa-faq-item\">\n        <h3 class=\"sa-faq-q\">Why do quotes come back at different prices for the same nickname?<\/h3>\n        <p class=\"sa-faq-a\">Because the nickname did not fix cast or extruded, thickness, or finish. Align those before you compare the numbers.<\/p>\n      <\/div>\n    <\/div>\n\n    <div class=\"sa-author\" id=\"author\">\n      <h2>About the author<\/h2>\n      <p class=\"sa-author-name\">David Deng<\/p>\n      <p class=\"sa-author-role\">R&#038;D manager at Sanait. 10+ years in acrylic fabrication; 2,000+ custom acrylic projects shipped across 20+ countries.<\/p>\n      <p>Sanait Co., Ltd. builds custom acrylic displays in Dongguan. The name guide is general industry language. Commercial terms are on the <a href=\"https:\/\/www.sanait.com\/faq\/\">FAQ<\/a>. Plant background is on the <a href=\"https:\/\/www.sanait.com\/about-us\/\">about page<\/a>.<\/p>\n    <\/div>\n\n    <div class=\"sa-related\">\n      <h2>Factory pages<\/h2>\n      <ul>\n        <li><a href=\"https:\/\/www.sanait.com\/faq\/\">Custom acrylic FAQ<\/a><\/li>\n        <li><a href=\"https:\/\/www.sanait.com\/about-us\/\">About Sanait<\/a><\/li>\n        <li><a href=\"https:\/\/www.sanait.com\/custom-acrylic-boxes\/\">Custom acrylic boxes<\/a><\/li>\n        <li><a href=\"https:\/\/www.sanait.com\/custom-acrylic-trays\/\">Custom acrylic trays<\/a><\/li>\n        <li><a href=\"https:\/\/www.sanait.com\/\">Custom display stands<\/a><\/li>\n      <\/ul>\n    <\/div>\n\n    <section class=\"sa-src\" id=\"sources\">\n      <h2>Sources<\/h2>\n      <p>The names are trade names for PMMA. Confirm a specific brand on the mill\u2019s own sheet. These references identify the polymer and the public names only.<\/p>\n      <ol class=\"sa-src-list\">\n        <li>ISO 7823-1:2003, <em>Plastics \u2014 Poly(methyl methacrylate) sheets \u2014 Part 1: Cast sheets<\/em>. <a href=\"https:\/\/www.iso.org\/standard\/33450.html\" rel=\"nofollow noopener\" target=\"_blank\">iso.org<\/a><\/li>\n        <li>ISO 7823-2:2003, <em>Plastics \u2014 Poly(methyl methacrylate) sheets \u2014 Part 2: Extruded sheets<\/em>. <a href=\"https:\/\/www.iso.org\/standard\/33451.html\" rel=\"nofollow noopener\" target=\"_blank\">iso.org<\/a><\/li>\n        <li>\u201cPoly(methyl methacrylate).\u201d <em>Wikipedia<\/em>. <a href=\"https:\/\/en.wikipedia.org\/wiki\/Poly(methyl_methacrylate)\" rel=\"nofollow noopener\" target=\"_blank\">en.wikipedia.org<\/a><\/li>\n        <li>\u201cPlexiglas.\u201d <em>Wikipedia<\/em>. <a href=\"https:\/\/en.wikipedia.org\/wiki\/Plexiglas\" rel=\"nofollow noopener\" target=\"_blank\">en.wikipedia.org<\/a><\/li>\n        <li>\u201cPerspex.\u201d <em>Wikipedia<\/em>. <a href=\"https:\/\/en.wikipedia.org\/wiki\/Perspex\" rel=\"nofollow noopener\" target=\"_blank\">en.wikipedia.org<\/a><\/li>\n      <\/ol>\n    <\/section>\n\n  <\/div>\n<\/div>\n\n<script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@graph\": [\n    {\n      \"@type\": \"Article\",\n      \"headline\": \"Perspex, Lucite, and Plexiglass: An Acrylic Name Guide\",\n      \"description\": \"Perspex, Lucite, and Plexiglass are trade names for acrylic (PMMA), not three different plastics. 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