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Bubbles are a common frustration when working with epoxy resin, but with the right preparation and technique, you can achieve a smooth, professional finish.
Careful Mixing: The First Step
Most bubbles in epoxy resin originate during the mixing process. To minimise air entrapment, pour your resin and hardener together and stir slowly, using a gentle, consistent motion. Avoid vigorous or rapid mixing, which can whip in excess air. Tools like the Anti Bubble Mixer are designed to help combine components thoroughly while reducing the risk of bubble formation.
Pouring and Bubble Release Techniques
Once your resin is mixed, immediately pour it into your mould or onto your project surface. Work in a dust-free environment and try to pour in a thin, even layer, especially for projects requiring clarity. After pouring, bubble release can be further encouraged by quickly sweeping a heat gun or artist’s torch across the resin surface. The warmth causes bubbles to rise and pop, leaving your finish clear and glass-like.
When This Matters Most
- Creating transparent coatings or deep, clear castings where even tiny bubbles are noticeable
- Jewellery making and artistic pieces that demand a flawless finish
- Tabletops and other furniture projects, where surface quality is critical
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Preventing bubbles is key to achieving the smooth, self-levelling results sought after in epoxy resin projects. For further information on perfecting your pours, explore advice in our guide on how to pour self-leveling epoxy resin.