Coroplast

{{Short description|Brand name of corrugated plastic}}

{{about|corrugated plastic|ancient Greek modelers of terracotta figurines|Coroplast (artisan)|the similarly named plant cell component|Chloroplast}}

{{Use mdy dates|date=January 2024}}

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File:CoroplastVelomobile.jpg enclosed in coroplast|right]]

Coroplast is a brand name of corrugated plastic and a registered trademark of Coroplast, LLC, a member of the Inteplast Group of companies. Because of the success of this brand, it has become a generically used tradename and many people in North America today refer to all corrugated plastic as "coroplast".{{cn|date=January 2024}} Coroplast is produced with Cartonplast technology developed by Covema in 1974.{{Cite web|url=https://books.google.com/books?id=QvbQAAAAMAAJ&q=cartonplast&pg=RA3-SL553-PA599|title = Official Gazette of the United States Patent and Trademark Office: Trademarks|year = 2000}}

Coroplast operates plants in Granby, Quebec; Dallas, Texas; and Vanceburg, Kentucky.{{cite web|title=About Coroplast|url=https://www.coroplast.com/about/index.htm|publisher= Coroplast, an Inteplast Group Company|access-date=October 24, 2018}} On August 15, 2014, Inteplast Group, the company's major competitor, acquired majority of its assets with an undisclosed amount.{{cite web |title= Inteplast expands in corrugated sheet with Coroplast deal |first1=Michael |last1=Lauzon |url= https://www.plasticsnews.com/article/20140821/NEWS/140829976/inteplast-expands-in-corrugated-sheet-with-coroplast-deal |date= August 21, 2014 |accessdate= February 5, 2025}}

Coroplast, also called pp plate sheet ("Fluted Polypropylene Sheet"), is lightweight (hollow structure), non-toxic, waterproof, shockproof, long-lasting material that resists corrosion. Compared with cardboard, Coroplast has the advantages of being waterproof and colorfast.{{cn|date=February 2025}}

Corrugated plastic is widely used for signage, plastic containers, and reusable packaging. It is also used by hobbyists in do it yourself projects such as constructing cages for small animals or model aircraft.{{cn|date=February 2025}}