Low Exothermic Reaction: Achieving Thick Resin Pours Without Overheating

Why Low Exothermic Reaction Matters in Deep Pours

When mixing and casting epoxy resin, an exothermic reaction naturally occurs. Standard resins may overheat or crack when poured thickly, limiting the creative potential for deep, single-layer castings. Specially formulated low exothermic resins, such as Epoxytable 10-Ten, are designed for these tasks. They control heat release, allowing thicker sections to cure without distortion or bubbles.

Choosing the Right Resin for Thickness

For projects up to 10cm thick, choose low exothermic formulations like Epoxytable 10-Ten, which enables deep pours while maintaining clarity and strength. For depths between 2–5cm, resins such as EpoxyTable 5-Five are recommended. Always check the manufacturer’s suggested maximum casting thickness to prevent overheating and avoid excessive layering steps.

• Up to 10cm: Epoxytable 10-Ten
• 2–5cm: EpoxyTable 5-Five

Practical Guidance: Pouring Without Overheating

Pour resin in controlled temperatures, working in a well-ventilated area. Stir thoroughly but gently to minimise air bubbles. Do not exceed the recommended thickness for a single pour to avoid a rapid build-up of heat. If undertaking larger projects beyond the maximum pour depth, layer the resin, allowing each stage to cool and cure before adding more.