What’s the Right Temperature for Resin Mixing?

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Mixing resin at the correct temperature is key to achieving a flawless finish and plenty of working time. The right environment can help prevent resin from curing faster than you’d like.

The Ideal Temperature Range

For most resin systems, aim to work between 18–22°C. This temperature range allows the resin and hardener to react consistently without the mix becoming too hot or slowing to a crawl. Warmer rooms can cause the resin to harden quickly, reducing your time to work, while colder spaces might delay or even prevent proper curing.

Practical Mixing Tips

• Let your resin and hardener reach room temperature before mixing. If stored in a cold area, allow them to warm up naturally for a few hours indoors.
• Prepare your workspace in advance – close windows on chilly days and avoid heat sources like radiators and direct sunlight nearby.
• If you need a long working time for deep pours or intricate projects, choose products designed for this purpose. For example, EpoxyTable 5-Five is crafted with a slower reaction to suit larger pours.

When This Matters Most

Correct temperature is especially important for large castings, deep pours, or if you’re new to resin art. Getting it right means fewer bubbles, smoother surfaces, and less stress when time is tight.

Related products

• "EpoxyTable 5-Five" – Deep Pour Epoxy Resin for Tables and Large Projects – Up to 5cm
• “Epoxytable 10-Ten” – Deep Pour Epoxy Resin for Tables, Up to 10cm Casting
• "One-2-One" – Epoxy Resin for Handcraft, 1:1 Mixing Ratio

Related guides

• How To Keep Resin From Hardening

Understanding the best resin mixing temperature helps you control the curing process and optimise your results. For more advice on keeping resin from hardening too quickly, visit our main guide on how to keep resin from hardening.