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Thank you for your interest in getting to know us a little better.  We're happy to share our story with you.  At Exotherm, our goal is to provide you with the tools and information that will help with the success of your designs.  We hope to build a community of creators and always look forward to finding out more about you and your projects.  Be sure to follow us on all our social media platforms and tag us with your creations.

About Us

Exotherm Custom Designs was established in 2019. It was founded by entrepreneur, Carlos Santos, who initially started out making charcuterie boards as a side hustle. He found that building a new wooden mold for each pour was a waste of time, money and materials. Since there was no solution to this problem on the market, he created his own reusable forms using HDPE, and began receiving a lot of interest in these products from fellow makers. 


As the popularity of charcuterie boards and epoxy/resin projects steadily increased over the next five years, particularly during the pandemic, interest in these products did so as well. Today Exotherm Designs ships no seal forms to our customers around the globe. 



Designer and manufacturer of the original No Seal Form 

Made in Canada  

Sturdiest forms on the market

Carrying three types of forms — Original No Seal, Vacuum-Formed and Silicone

Available in an array of sizes and shapes 

For epoxy enthusiasts, makers and hobbyists alike

Often imitated, never duplicated



Exotherm Designs

Helping your projects take form

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