Rectangle NO SEAL Resin Molds (Epoxy/Resin Forms)
Rectangle NO SEAL HDPE Epoxy Forms (Reusable Resin Molds for River Tables & Serving Boards)
Build cleaner pours, faster setups, and repeatable results with our NO SEAL Epoxy/Resin Forms—premium reusable HDPE molds designed for epoxy + wood projects like river tables, serving boards, charcuterie boards, cribbage boards, signs, and DIY resin art. These forms are a smart long-term investment for resin artists, woodworkers, DIYers, and professional shops who want a reliable mold that’s easy to release and ready to reuse.
Why You’ll Love Our NO SEAL Forms
Our one-piece HDPE epoxy molds are built to reduce prep time and improve consistency from pour to pour.
Rectangle NO SEAL Mold Features:
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One-piece construction (clamps for securing your workpiece not included)
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Made from 3/8" thick HDPE for durability and repeat use
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7° tapered sides for easier release after curing
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No silicone required between uses
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Release is simple: tap the form with a mallet to pop the cured epoxy free
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Pour up to 3" deep (select sizes include 2" depth—see list below)
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Mold release not required (optional to help extend mold life)
Rectangle Sizes Available
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60" x 30" x 3" NO SEAL HDPE Form
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24" x 48" x 3" NO SEAL HDPE Form
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18" x 36" x 3" NO SEAL HDPE Form
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10" x 42" x 3" NO SEAL HDPE Form
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24" x 24" x 3" NO SEAL HDPE Form
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18" x 18" x 3" NO SEAL HDPE Form
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12" x 24" x 3" NO SEAL HDPE Form
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12" x 16" x 3" NO SEAL HDPE Form
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12" x 12" x 3" NO SEAL HDPE Form
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10" x 18" x 3" NO SEAL HDPE Form
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5" x 15" x 2" NO SEAL HDPE Form (Cribbage)
Pro Tip: Add a Layout Template
For the cleanest results, we recommend pairing your mold with one of our Layout Templates. They’re made to help with:
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fast, repeatable layouts
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accurate placement before pouring
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clean trimming after curing
Best Practice to Prevent Leaks
Always pour and cure on a flat, fully supported surface.
Placing the mold on elevated platforms can create stress on the welds over time, which may lead to leaking. A stable, level base is the best way to protect your mold and get consistent results.
If you have questions about our forms please check out our FAQ's to get your answer!
