How to Prevent Bubbles When Applying Resin to Glass

← Back to How to apply epoxy resin on glass?

Achieving a crystal-clear resin finish on glass can add a touch of elegance to art, furniture, and decor projects. However, the appearance of bubbles in your epoxy resin can easily undermine results. Fortunately, with the right approach, you can minimise or prevent bubbles when applying resin to glass.

Mixing and Temperature Tips

Mix your resin and hardener slowly and steadily to avoid trapping air. Fast or vigorous stirring is the most common cause of stubborn bubbles. Before you start, ensure both your glass and the resin mixture are at room temperature, as cold surfaces can encourage bubble formation. Allowing the resin to sit briefly after mixing can also help bubbles rise to the surface before pouring.

Pouring and Bubble Removal Techniques

Pour the resin gently onto the centre of the glass surface, letting it flow outward naturally. For any bubbles that do appear, a quick pass with a heat gun or a gentle breath over the resin can help them escape. The warmth causes bubbles to rise and pop, resulting in a clearer finish. If you are working with intricate designs or want extra assurance, consider using a resin with a self-levelling formula such as Art Pro Clear Epoxy Resin for artists and surface coating.

When Bubble-free Resin Matters

Displaying decorative pieces where clarity is key
Creating resin art or photographs on glass for premium, professional presentation
Coaster and tabletop projects where imperfections are easily visible

Related guides

How To Apply Epoxy Resin On Glass

Taking the time to mix slowly, pour carefully, and remove bubbles promptly will ensure your glass projects look their best. For more guidance on perfecting your techniques, visit our main guide on how to apply epoxy resin on glass.