How to Mix Epoxy Resin Slowly to Avoid Introducing Air

Q: Best Practice for Mixing Epoxy Resin

Use a round container: Rounded surfaces are easier to scrape, reducing unmixed resin and hardener in corners. Stir gently and steadily: Move the mixing stick around the entire container, scraping sides and bottom. Avoid lifting the stick out repeatedly: Keep the stirrer within the mix to prevent working more air in. Allow time to rest: After mixing, let your resin sit briefly to enable surface bubbles to rise and pop naturally. For artists working on projects where line definition matters, a product like Art Pro Deluxe offers ultra-high viscosity that also helps reduce unwanted mixing and blending, making it easier to achieve sharp results even during careful stirring.

← Back to How to thicken epoxy resin?

Mix Epoxy Resin Slowly to Avoid Introducing Air

Careful mixing is essential for successful epoxy resin projects. Mixing slowly prevents unwanted air bubbles, resulting in a flawless, transparent finish for your art, jewellery, and coatings.

Why Slow Mixing is Important

When you mix epoxy resin in a hurry or too vigorously, the motion traps air within the blend, producing visible bubbles. These can mar the final look, especially in detailed or glossy finishes. Slowly combining the resin and hardener reduces turbulence and minimises air entrapment, resulting in clearer, more professional results.

Best Practice for Mixing Epoxy Resin

Use a round container: Rounded surfaces are easier to scrape, reducing unmixed resin and hardener in corners.
Stir gently and steadily: Move the mixing stick around the entire container, scraping sides and bottom.
Avoid lifting the stick out repeatedly: Keep the stirrer within the mix to prevent working more air in.
Allow time to rest: After mixing, let your resin sit briefly to enable surface bubbles to rise and pop naturally.

For artists working on projects where line definition matters, a product like Art Pro Deluxe offers ultra-high viscosity that also helps reduce unwanted mixing and blending, making it easier to achieve sharp results even during careful stirring.

When This Matters Most

If your project is a clear cast (such as jewellery, artwork, or a glossy tabletop), any trapped air bubbles will show up once the resin cures. For work requiring precise details or glass-like coatings, slow and steady mixing delivers the best finish.

Related guides

How To Thicken Epoxy Resin

Taking your time with the mixing process can mean the difference between a flawless, clear finish and a cloudy, bubbly surface. Slow mixing is a simple yet crucial step—explore the full guide to thickening epoxy resin for more tips on achieving perfect results in your resin projects.