How to prevent cracks in epoxy resin during curing

“ART PRO DELUXE” – Ultra-High Viscosity Epoxy Resin For Artists

The best choice for Resin and Geode-art, making Coasters, Trays, Ocean-art, jewellery and casting surfaces. + gloves & detailed instruction for FREE.

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“EPOXYTABLE 5-FIVE” – Deep Pour Epoxy Resin (Up to 5cm) for Tables & Large Projects

The best choice for deep pouring: ✔️ Low exothermic reaction –> Castings up to 5cm [1,96”] ✔️ Strong UV filters –> Non-yellowing guaranteed for 5 years ✔️ Highly mechanical resistant surface, for maximum scratchproof properties ✔️ Low viscosity –> Bubbles free ✔️ Long working time –> No rush in the process ✔️ Heat resistance –> Up to 70°C [158 F] ✔️ Trusted quality –> We have already sold more than 26000 kits of this product, since we started in 2015 🌿 Cruelty Free, Vegan Friendly🐹

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“ICRYSTAL” – Clear Epoxy Resin (Up to 1.5cm) – High quality and great price

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“Art Pro” – Clear Epoxy Resin for Artists & Surfaces Coating

Experience the brilliance of 'Art Pro', an ultra-clear, non-toxic epoxy resin designed specifically for artists and DIY enthusiasts. Perfect for a variety of resin art projects/p>

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“COLOURFUN” – Liquid Epoxy Resin Colourant Set

Intense and brilliant colour, ideal for Transparent Epoxy Resins. Mix small quantity to get a translucent effect. The high coverage of the "Colorfun Original" range allows to obtain a full and bright colour. The high concentration provides an opaque colour with a few drops. Usable to colour the products of the RESIN PRO range.

£13.45

“I–GUM” – Non-Toxic Silicone Putty for mould making

“I-GUM SLOW” – Non-Toxic Silicone Rubber – Paste Form Pasty silicone rubber “I-GUM” is a two–component product for creating moulds and forms for pouring with epoxy resin.

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“PURE MOULD” – Transluent Liquid Silicone rubber for creating moulds

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“Epoxy Polish” – Epoxy Resin Polishing System

EPOXY POLISH is an advanced epoxy resin polishing system that delivers a stunning, glossy finish for your resin projects. Ideal for professionals and DIY enthusiasts alike, this product rejuvenates surfaces to a mirror-like shine with ease.

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Controlling Ambient Temperature

Maintaining a constant ambient temperature is crucial to prevent cracks in the resin during curing. Excessive temperature fluctuations can stress the material, leading to crack formation. It is advisable to work in an environment with controlled temperature, avoiding overly hot or cold locations. As suggested by RESINPRO, using thermometers to constantly monitor the temperature during the process is recommended.

Avoiding Excessive Resin Layering

Another factor that can cause cracks in the resin is applying excessively thick layers. When pouring the resin, ensure it is evenly distributed and avoid excessive build-up in one area. By following RESINPRO guidelines, this issue can be avoided, ensuring an even distribution of resin over the entire surface.

Using an Adequate Primer

Using a specific primer for resin can help increase adhesion and reduce the risk of cracks during curing. Applying the primer evenly before pouring the resin can improve material compatibility and ensure a more durable final result. High-quality primers can be found on RESINPRO to properly prepare surfaces before resin application.

Adhering to Curing Times

Carefully following the manufacturer's recommended curing times is essential to avoid cracks in the resin. Too rapid or too slow curing can compromise the quality of work and promote defect formation. Always refer to RESINPRO guidelines to ensure optimal curing times and a crack-free final result.

“COLOURFUN” – Liquid Epoxy Resin Colourant Set

Intense and brilliant colour, ideal for Transparent Epoxy Resins. Mix small quantity to get a translucent effect. The high coverage of the "Colorfun Original" range allows to obtain a full and bright colour. The high concentration provides an opaque colour with a few drops. Usable to colour the products of the RESIN PRO range.

£13.45

“I–GUM” – Non-Toxic Silicone Putty for mould making

“I-GUM SLOW” – Non-Toxic Silicone Rubber – Paste Form Pasty silicone rubber “I-GUM” is a two–component product for creating moulds and forms for pouring with epoxy resin.

£22.85

“PURE MOULD” – Transluent Liquid Silicone rubber for creating moulds

Create your moulds using PURE MOLD silicone rubber! Compatible with many materials including resins, plaster and cement. Its transparency will allow you to observe through the mould and its high mechanical characteristics make it a product suitable for both professional and hobby use.

£22.45

“Epoxy Polish” – Epoxy Resin Polishing System

EPOXY POLISH is an advanced epoxy resin polishing system that delivers a stunning, glossy finish for your resin projects. Ideal for professionals and DIY enthusiasts alike, this product rejuvenates surfaces to a mirror-like shine with ease.

£17.85