How to Stop Epoxy Leaking from Your Mould

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How Do I Stop Epoxy Leaking from My Mould?

Nothing is more frustrating during a wood and resin table project than finding your precious epoxy leaking from the mould. With the right approach, you can avoid this common issue and achieve a flawless result on your resin creations.

Why Does Epoxy Leak from Moulds?

Epoxy leaks often happen where panels join or along edges of your mould. Even the tiniest gap can allow resin to seep out, leading to mess, wasted material, or imperfect finishes. Making your mould leak-proof is essential for a professional table pour.

Effective Mould Sealing Steps

Seal All Joints: Apply a continuous bead of silicone along every internal seam, joint, and edge of your mould.
Water Test Before Casting: Before mixing your resin, pour some water into the closed mould and check for any drips underneath. Address leaks with extra silicone as needed, then dry thoroughly before use.
Use a Suitable Base: An MDF Board Base can help provide a flat, sturdy surface to support your project and the sealant.

For those starting out, an all-in-one kit, such as the “River-Table” Complete Kit, includes silicone rubber for sealing and comprehensive instructions suitable for beginners.

When Proper Sealing Matters

Carefully sealing your mould is especially important with deep pour resin tables. Thicker pours put extra pressure on joints and can exploit even tiny imperfections. Taking the time for a thorough water test can save you costly resin loss and cleanup later.

Related guides

How To Create A Mould For A Wood And Resin Table

Mastering leak prevention is a foundational skill for anyone exploring how to create a mould for a wood and resin table. With careful sealing and the right materials, you’ll be ready to pour with confidence.