How to Prevent Bubbles and Yellowing in Resin Projects

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How can I avoid bubbles or yellowing in resin projects?

Troubled by bubbles or unwanted yellowing in your resin projects? Both can spoil even the most carefully designed creations, but following the right steps and selecting well-formulated resins can help you produce crystal-clear, long-lasting results.

Tips to Minimise Bubbles

The presence of bubbles is one of the most frequent frustrations in resin work. To reduce them, always mix your resin and hardener using slow, gentle motions. Vigorous mixing can trap excess air, so patience here pays off. When pouring, slowly direct the resin into the deepest area of your mould first, letting it spread naturally—this helps any remaining bubbles escape.

Choose a resin with enhanced degassing properties, especially for projects with intricate details like jewellery mouldings.
If bubbles appear, you can encourage them to rise and burst by gently warming your filled mould using a heat gun or blowing lightly over the surface—but avoid excessive heat.

Preventing Yellowing for Lasting Clarity

Yellowing is often caused by exposure to UV light or using a resin lacking sufficient UV blockers. Opt for resins that specifically mention UV protection or non-yellowing qualities, like the One-2-One Epoxy Resin and Epoxytable 10-Ten, both formulated to remain clearer for longer.

Store finished pieces away from direct sunlight and avoid displaying them in areas that get prolonged UV exposure, as this simple step helps preserve their original appearance.

When This Matters Most

Careful bubble control and yellowing resistance are crucial for statement pieces like jewellery, table pours, and any transparent or light-tinted objects where clarity is essential. These precautions are especially important when showcasing embedded objects or artwork within the resin.

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How Do You Make Objects With Resin

By adopting careful working methods and choosing modern resins designed for clarity and UV resistance, your creations will stay vibrant and eye-catching. Explore our full guide on making objects with resin to boost your craft with even more expert advice.