{"id":27265,"date":"2026-08-11T08:13:37","date_gmt":"2026-08-11T08:13:37","guid":{"rendered":"https:\/\/purepack-kh.com\/?p=27265"},"modified":"2026-09-01T05:31:21","modified_gmt":"2026-09-01T05:31:21","slug":"what-is-corrugated-plastic-made-of","status":"publish","type":"post","link":"https:\/\/purepack-kh.com\/what-is-corrugated-plastic-made-of\/","title":{"rendered":"What Is Corrugated Plastic Made Of?"},"content":{"rendered":"<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-27266\" src=\"https:\/\/purepack-kh.com\/wp-content\/uploads\/2026\/08\/corrugated-plastic-1.jpg\" alt=\"corrugated-plastic\" width=\"1280\" height=\"720\" srcset=\"https:\/\/purepack-kh.com\/wp-content\/uploads\/2026\/08\/corrugated-plastic-1.jpg 1280w, https:\/\/purepack-kh.com\/wp-content\/uploads\/2026\/08\/corrugated-plastic-1-768x432.jpg 768w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_87_1 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/purepack-kh.com\/what-is-corrugated-plastic-made-of\/#1_Composition_of_Corrugated_Plastic\" >1.\u00a0Composition of Corrugated Plastic<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/purepack-kh.com\/what-is-corrugated-plastic-made-of\/#1_Polypropylene_PP_The_Main_Material\" >1.\u00a0Polypropylene (PP): The Main Material<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/purepack-kh.com\/what-is-corrugated-plastic-made-of\/#2_Calcium_Carbonate_CaCO%E2%82%83_Improving_Performance_and_Cost_Efficiency\" >2.\u00a0Calcium Carbonate (CaCO\u2083): Improving Performance and Cost Efficiency<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/purepack-kh.com\/what-is-corrugated-plastic-made-of\/#3_Pigments_Creating_Customized_Colors\" >3.\u00a0Pigments: Creating Customized Colors<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/purepack-kh.com\/what-is-corrugated-plastic-made-of\/#4_Functional_Additives_for_Special_Applications\" >4.\u00a0Functional Additives for Special Applications<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/purepack-kh.com\/what-is-corrugated-plastic-made-of\/#Anti-Static_Additives\" >Anti-Static Additives<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/purepack-kh.com\/what-is-corrugated-plastic-made-of\/#UV_Protection_Additives\" >UV Protection Additives<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/purepack-kh.com\/what-is-corrugated-plastic-made-of\/#Flame-Retardant_Additives\" >Flame-Retardant Additives<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/purepack-kh.com\/what-is-corrugated-plastic-made-of\/#Conductive_Additives\" >Conductive Additives<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/purepack-kh.com\/what-is-corrugated-plastic-made-of\/#2_Why_Material_Composition_Matters_When_You_Import_Corrugated_Plastic\" >2.\u00a0Why Material Composition Matters When You Import Corrugated Plastic<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/purepack-kh.com\/what-is-corrugated-plastic-made-of\/#3_Frequently_Asked_Questions_FAQ\" >3.\u00a0Frequently Asked Questions (FAQ)<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/purepack-kh.com\/what-is-corrugated-plastic-made-of\/#Q1What_additives_are_used_for_medical_and_food-grade_PP_boxes\" >Q1.What additives are used for medical and food-grade PP boxes?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/purepack-kh.com\/what-is-corrugated-plastic-made-of\/#Q2Why_are_anti-slip_additives_included_in_PP_corrugated_boxes\" >Q2.Why are anti-slip additives included in PP corrugated boxes?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/purepack-kh.com\/what-is-corrugated-plastic-made-of\/#Q3Does_corrugated_plastic_contain_any_dangerous_materials\" >Q3.Does corrugated plastic contain any dangerous materials?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/purepack-kh.com\/what-is-corrugated-plastic-made-of\/#Q4Why_do_food_grade_additives_need_to_be_added_to_PP_corrugated_boxes\" >Q4.Why do food grade additives need to be added to PP corrugated boxes?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/purepack-kh.com\/what-is-corrugated-plastic-made-of\/#7Conclusion\" >7.Conclusion<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"1_Composition_of_Corrugated_Plastic\"><\/span>1.\u00a0<strong>Composition of Corrugated Plastic<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Do you know what is corrugated plastic made of? Corrugared plastic is known as <a href=\"https:\/\/purepack-kh.com\/corrugated-polypropylene-sheet\/\">PP corrugated sheet<\/a>, plastic hollow sheet, or twin-wall polypropylene sheet, is composed mainly of PP resin, and there are three types of\u00a0PP resin: Homopolymer PP (PP-H), Random Copolymer PP (PP-R), and Impact Copolymer PP (PP-B\/PP-C). It also contains CaCO\u2083, pigments, and other useful additives.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"1_Polypropylene_PP_The_Main_Material\"><\/span>1.\u00a0<strong>Polypropylene (PP): The Main Material<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Polypropylene is an essential component in corrugated plastic production.<\/p>\n<p>This material is a thermoplastic polymer that is famous due to the following qualities:<\/p>\n<ul>\n<li>Resistance to impacts<\/li>\n<li>Lightweight<\/li>\n<li>Resistance to moisture and water<\/li>\n<li>Resistance to chemicals<\/li>\n<li>Sustainability<\/li>\n<li>Durable lifetime<\/li>\n<\/ul>\n<p>PP comes in three major types. <strong><b>PP-H or Homopolymer<\/b><\/strong>\u00a0PP serves best in making corrugated plastic sheets and industrial packing as well as signage. On the other hand,<strong><b>\u00a0PP-R or Random Copolymer <\/b><\/strong>excels in packaging food as well as pharmaceutical products. Lastly, <strong><b>PP-B\/PP-C or Impact Copolymer<\/b><\/strong>\u00a0PP makes exceptional packaging for seafood packaging, meat packaging, crates and cold chain logistics.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"2_Calcium_Carbonate_CaCO%E2%82%83_Improving_Performance_and_Cost_Efficiency\"><\/span>2.\u00a0<strong>Calcium Carbonate (CaCO\u2083): Improving Performance and Cost Efficiency<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>CaCO\u2083 is often used as a filler in PP corrugated sheets.<\/p>\n<p>However, its function is not limited only to lowering costs. In proper proportions, CaCO\u2083 may enhance many of the materials&#8217; characteristics, such as:<\/p>\n<ul>\n<li>Stiffness<\/li>\n<li>Dimensional stability<\/li>\n<li>Increased hardness of the surface<\/li>\n<li>Process ability<\/li>\n<\/ul>\n<p>You\u00a0must be sure that the ratio between PP and CaCO\u2083 is proper. The amount of CaCO\u2083 should range from 5-30 %.<\/p>\n<p>Otherwise, the excessive amount of filler will decrease flexibility and impact resistance, whereas the proper mixture will produce a stable, stiff, and economically efficient material.<\/p>\n<p>It is up to the professionals to determine the proper ratio of the material.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"3_Pigments_Creating_Customized_Colors\"><\/span>3.\u00a0<strong>Pigments: Creating Customized Colors<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Pigments are used to create different shades of colors and appearances.<\/p>\n<p>Based on your\u00a0demand,\u00a0corrugated plastic sheets can be available in different colors like:<\/p>\n<ul>\n<li>Blue<\/li>\n<li>Black<\/li>\n<li>White<\/li>\n<li>Grey<\/li>\n<li>Green<\/li>\n<li>Colors that are custom made based on your requirements<\/li>\n<\/ul>\n<p>Colors not only serve aesthetic purposes but also serve as identity markers, strengthen brands, increase safety, and help with sorting processes in the food industry. In the case of PP corrugated sheets, certain colors are used for particular purposes such as blue for hygiene, green for fresh products, white for clean packaging, red for handling requirements, yellow for sorting, and black for extra protection.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"4_Functional_Additives_for_Special_Applications\"><\/span>4.\u00a0<strong>Functional Additives for Special Applications<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>One\u00a0advantage of PP corrugated plastics is their ability to be modified by adding different functional additives.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Anti-Static_Additives\"><\/span><strong>Anti-Static Additives<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>There are some industries where static electricity can become quite a threat.<\/p>\n<p>Anti-static PP corrugated plastics were designed in order to minimize static charge formation and are great for:<\/p>\n<ul>\n<li>Packing of electronics<\/li>\n<li>Moving semiconductors<\/li>\n<li>Storage of precision parts<\/li>\n<\/ul>\n<p>In case your clients need extra protection for their sensitive goods, then anti-static plastic would come in handy.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"UV_Protection_Additives\"><\/span><strong>UV Protection Additives<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>When corrugated plastic stays outdoors, it undergoes considerable stress from sunlight.<\/p>\n<p>UV inhibitors increase resistance to ultraviolet rays and help prolong the life of the plastic when it is used for:<\/p>\n<ul>\n<li>Agricultural purposes<\/li>\n<li>Outdoor advertisements<\/li>\n<li>Construction protection<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"Flame-Retardant_Additives\"><\/span><strong>Flame-Retardant Additives<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>If your sector requires materials that have higher flame-retarding properties. using flame-retardant additives allows creating PP corrugated sheets that will meet stringent safety requirements when used in the automobile, electronics, electric machinery, construction, and aerospace sectors, where fire resistance is an important factor.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Conductive_Additives\"><\/span><strong>Conductive Additives<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>Conductive additives may be added for some special purposes to produce PP corrugated sheets with conductive properties. Such materials are useful in electronics, semiconductors, and the automotive industry.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"2_Why_Material_Composition_Matters_When_You_Import_Corrugated_Plastic\"><\/span>2.\u00a0<strong>Why Material Composition Matters When You Import Corrugated Plastic<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Having information about the composition of the corrugated plastic supplied by your foreign supplier\u00a0will help you assess its quality.<\/p>\n<p>A reliable manufacturer must be able to tell you:<\/p>\n<ul>\n<li>the specific percentage of PP resins<\/li>\n<li>the types of additives added<\/li>\n<li>whether the raw material is recycled<\/li>\n<li>if it is fit for food grade use<\/li>\n<li>if there is an opportunity for customization<\/li>\n<\/ul>\n<p>Depending on how the corrugated plastic is going to be used, different formulations may be required. A box to carry frozen foods, for example, will have different characteristics than the sheet for outdoor advertising.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"3_Frequently_Asked_Questions_FAQ\"><\/span>3.\u00a0<strong>Frequently Asked Questions (FAQ)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Q1What_additives_are_used_for_medical_and_food-grade_PP_boxes\"><\/span><strong>Q1.What additives are used for medical and food-grade PP boxes?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Medical and food grade PP containers depend on the use of additives to make sure they are both safe and strong. Their composition usually consists of 95% to 98% PP resin, 1% to 3% food grade masterbatch, along with other additives in small amounts that include antioxidants, stabilizers, pigments, and antistatic agents.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Q2Why_are_anti-slip_additives_included_in_PP_corrugated_boxes\"><\/span><strong>Q2.Why are anti-slip additives included in PP corrugated boxes?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Anti-slip additives are added to increase the grip on PP corrugated boxes. It makes sure that the box does not slip during handling, especially when stacking or transporting seafood, meat, and other heavier products.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Q3Does_corrugated_plastic_contain_any_dangerous_materials\"><\/span><strong>Q3.Does corrugated plastic contain any dangerous materials?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Generally, polypropylene corrugated plastic does not contain toxic materials if it is made in accordance with safety regulations. However, additives and coatings may vary between products. In case you are planning to work with food, medicine, or other sensitive materials, check the manufacturer&#8217;s recommendations.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Q4Why_do_food_grade_additives_need_to_be_added_to_PP_corrugated_boxes\"><\/span><strong>Q4.Why do food grade additives need to be added to PP corrugated boxes?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>There is a need for the use of food-grade additives to ensure that <a href=\"https:\/\/purepack-kh.com\/plastic-corrugated-box\/\">PP corrugated boxes<\/a> are safe for use in direct contact with food. These additives improve the quality of materials used, reduce deterioration, maintain appearance, and satisfy regulations for food use.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"7Conclusion\"><\/span><strong>7.<\/strong><strong>Conclusion<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Once you know what goes into corrugated plastic materials, you can make decisions which will suit your clients and business objectives. Mainly, corrugated plastic consists of polypropylene (PP) and calcium carbonate, along with pigment and other additives in order to give required properties. For further information about PP corrugated products, visit <a href=\"https:\/\/purepack-kh.com\/\">PurePack<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&nbsp; 1.\u00a0Composition of Corrugated Plastic Do you know what is corrugated plastic made of? Corrugared plastic is known as PP corrugated sheet, plastic hollow sheet, or twin-wall polypropylene sheet, is composed mainly of PP resin, and there are three types of\u00a0PP resin: Homopolymer PP (PP-H), Random Copolymer PP (PP-R), and [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":27266,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","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":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"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":""},"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-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":"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":""},"mobile":{"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":""}},"footnotes":""},"categories":[1,32],"tags":[],"class_list":["post-27265","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-corrugated-plastic"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>What Is Corrugated Plastic Made Of?<\/title>\n<meta name=\"description\" content=\"Do you know what is corrugated plastic made of? 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