How do I prevent overheating with deep resin pours?

Choose a Resin Formulated for Deep Pouring

Always select a resin designed specifically for deep casting. These resins feature low exothermic reactions, making them suitable for thicker layers without the risk of excessive heat. For pours up to 5cm, EpoxyTable 5-Five is a smart choice. For exceptionally deep projects, a product such as “Epoxytable 10-Ten” supports pours up to 10cm safely.

Respect Maximum Layer Thickness and Application Guidance

Deep pour resins are engineered to manage heat, but each has a maximum recommended thickness per layer—typically up to 5cm, or 10cm with specialist formulas. Exceeding these limits traps heat, potentially resulting in cloudiness or deformation. If your project requires greater depth, pour in multiple stages, allowing each to cool and cure appropriately before the next.

Practical Tips to Prevent Overheating

• Work in a stable, cool environment away from direct sunlight or high ambient temperatures.
• Avoid using heat guns or external accelerators, especially with thick layers.
• Follow resin manufacturer’s mixing ratios and instructions carefully to optimise the curing process.
• Allow extra curing time between layers for very large or complex pieces.