How to Eliminate Bubbles Before Pouring Resin for Wedding Favours

Q: Best Practices to Prevent and Remove Bubbles

Mix slowly, scrape sides: Stir your resin gently and scrape the sides of your container to avoid creating extra air pockets. Let resin rest: After mixing, allow the resin to stand for a few minutes. Most bubbles will rise naturally and pop. Warm the resin: Placing the sealed resin bottles in warm (not hot) water for a few minutes before mixing will help it flow better, releasing trapped air more easily. Use a heat source: Once poured, lightly pass a heat gun or small torch over the surface to encourage stubborn bubbles to pop, being careful not to overheat. Choose a degassing resin: Some starter kits, such as the Evershine Collection , offer enhanced degassing properties, which can be particularly useful for detailed work with flowers or intricate moulds.

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How to Eliminate Bubbles Before Pouring Resin

A flawless finish is essential when making resin wedding favours, but bubbles trapped in the resin can be distracting and spoil your design. Fortunately, with the right approach, you can achieve crystal-clear results every time.

Why Do Bubbles Form in Resin?

Bubbles develop when air is introduced during the mixing process, especially if mixed too vigorously. Pouring resin too quickly or onto items with small crevices, like dried flowers or textured moulds, can also create trapped air.

Mixing in a hurry or with a stick too rapidly
Inclusion of embedded items like flowers or charms
Low room temperature, which thickens the resin and traps more air

Best Practices to Prevent and Remove Bubbles

Mix slowly, scrape sides: Stir your resin gently and scrape the sides of your container to avoid creating extra air pockets.
Let resin rest: After mixing, allow the resin to stand for a few minutes. Most bubbles will rise naturally and pop.
Warm the resin: Placing the sealed resin bottles in warm (not hot) water for a few minutes before mixing will help it flow better, releasing trapped air more easily.
Use a heat source: Once poured, lightly pass a heat gun or small torch over the surface to encourage stubborn bubbles to pop, being careful not to overheat.
Choose a degassing resin: Some starter kits, such as the Evershine Collection, offer enhanced degassing properties, which can be particularly useful for detailed work with flowers or intricate moulds.

When Bubble-Free Casting Matters Most

Bubbles are most noticeable in clear or pale resin, and when embedding delicate items like dried flowers for wedding favours or gifts. Attention to detail is especially important for keepsakes, where clarity and a professional look are key.

Related guides

How To Make Resin Wedding Favours

Taking a little extra care to avoid bubbles ensures your handmade resin wedding favours stand out for their beauty and clarity. For more tips and inspiration, explore our main guide on how to make resin wedding favours.