How to Prevent Bubbles When Creating Custom Coloured Resin Pendants

Why Do Bubbles Appear in Resin?

Bubbles often form during mixing or when pouring resin into a mould. Hand mixing, adding inclusions (like dried flowers), or pouring too quickly can introduce air. These bubbles may become trapped, leaving visible imperfections in your finished pendant. Choosing a resin, such as Liquidissima Epoxy Resin, which features a low viscosity and a special formula to minimise air bubbles, is helpful if clarity is your goal.

Tips to Minimise Bubbles

• Mix Slowly: Combine resin and hardener gently and steadily to reduce air introduction.
• Pour Carefully: Allow the resin to flow slowly into your mould from one side to help air escape as you fill.
• Use a Heat Source: Lightly waving a heat gun or small torch above the surface can help pop bubbles that rise to the top—just take care not to scorch the resin or mould.
• Let the Resin Sit: After mixing, let the resin rest for a few minutes so bubbles can naturally surface before pouring.
• Choose a Suitable Resin: Some starter kits, like the Evershine Collection, are designed with enhanced degassing properties to simplify the process for beginners.

When This Matters Most

Paying close attention to bubble prevention is especially important for transparent or light-coloured pendants, where imperfections are most visible. It’s also crucial when embedding florals, photos, or glitter within your design, as bubbles can detract from intricate details.