How Do I Prevent Bubbles with Inclusions in Epoxy Resin?

Why Do Bubbles Appear with Inclusions?

Many popular additions to resin—such as dried botanicals, beads, or coloured pigments—have small air pockets or porous surfaces. When these are submerged, air escapes and may form bubbles, which get trapped in the resin as it cures. Understanding how this occurs is the first step to preventing it.

Practical Steps to Minimise Bubbles

• Seal porous items: Brush a thin coat of resin over items like dried flowers or wooden pieces and let them harden before embedding. This prevents air from escaping all at once.
• Add inclusions slowly: Place objects gently into your freshly mixed resin, giving air time to rise to the surface.
• Warm your resin slightly: Gently warming the resin before use lowers its viscosity, helping trapped bubbles escape more easily. Avoid overheating and always follow product instructions.
• Use a heat gun or torch: After pouring, gently pass a heat source over the surface. This encourages stubborn bubbles to rise and pop before the resin sets. Take care to keep the tool moving to avoid damaging your project.

For creative projects that involve embedding inclusions, a beginner-friendly kit like the Evershine Collection provides clear resin and accessories suited for decorative crafts with fewer worries about bubbles.

When Extra Care Matters

If you are making jewellery, keepsakes, or any project where a flawless finish is key, paying attention to bubble prevention makes all the difference. Highly detailed or sentimental pieces truly benefit from these careful steps.