Can I Make Sharp Corners with Deep Pour Resin?

Formwork Preparation: The Key to Clean Corners

The foundation of sharp resin corners lies in your formwork. For thick pours, a tightly sealed and sturdy mould is essential. Use materials like melamine or well-sealed wood, and line moulds with a release film for easy removal. When creating the corner sections, ensure the internal angles are perfectly square, and any seams are sealed with silicone to prevent leaks—this also stops resin from escaping and dulling your edges.

If you want to make the process even simpler, a comprehensive kit such as the “River-Table” Complete Kit provides resin, sealant, and detailed instructions for building moulds, making it an ideal choice for beginners working on tables or block castings.

Choosing the Right Deep Pour Resin

Not all epoxy resins handle thick layers or corners equally. For projects with significant depth, a specialised deep pour formulation—such as EpoxyTable 5-Five—will flow slowly enough to avoid excessive heat build-up and allow bubbles to escape, yet fill the corners thoroughly for a smooth finish. These resins are engineered for pour depths of up to 5cm per layer, giving the resin time to settle into every angle of the mould.

Pouring Technique for Sharp Results

Once your formwork and resin are ready, pour the resin slowly and steadily. A gentle pour reduces turbulence, helping the resin flow firmly into the corners without trapping air. Slightly tapping or vibrating the mould can also help the resin settle, eliminating bubbles that may mar a sharp edge. If you’re pouring multiple layers, allow each to partially cure before adding the next to maintain neat, defined corners.