How to Prevent Air Bubbles When Pouring Resin

Nothing spoils a resin project like unwanted air bubbles. Whether you’re creating art, jewellery, or a resin table, here’s how to ensure your pours cure clear and smooth.

Careful Mixing and Pouring

Vigorous mixing is a common cause of bubbles in resin. Use slow, sweeping motions and avoid whipping air into the mix. Once the resin and hardener are thoroughly combined, allow the mixture to rest briefly so some bubbles can rise and dissipate. When pouring, do so gradually, letting the resin flow in a thin, steady stream for fewer trapped bubbles. For large or layered projects, such as with the River-Table Kit, controlled pouring is especially important.

Dealing with Surface Bubbles

After pouring, inspect the surface for visible bubbles. Gently pass a heat gun or torch above the resin—never too close or for too long—to encourage bubbles to pop and release. This step is ideal for both deep pour projects and thin coatings, using tools suited to the scale of your work.

Tips for Professional Results

Work in a dust- and draught-free area to prevent disturbance during curing.
Always check the thickness guidelines for your chosen resin—resins like “EpoxyTable 5-Five” perform best within specific layer limits, helping bubbles escape effectively.
Consider warming your resin and workspace slightly beforehand to reduce viscosity, making it easier for bubbles to rise and pop.

Related guides

With the right technique and products, such as those supporting the guidance on our resin pouring advice page, you can achieve beautifully clear, bubble-free results on any project.