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Whether you want an effect reminiscent of stained glass or a dense, marble-like opacity, the transparency of your epoxy resin is fully customisable with the right technique and products.
Understanding Transparency in Resin
Epoxy resin itself cures to a clear, glassy finish. By introducing highly concentrated colourants, you can control how much light passes through the cured material. Adding just a trace of colourant achieves a translucent, stained-glass effect. Increasing the amount creates a more solid, opaque look—ideal for classic marble patterns.
Getting the Right Effect: Pigment Dosage and Application
It’s essential to use the recommended pigment concentration for your chosen look. For a stained glass effect, limit colourant to about 1% of the resin weight. To achieve a rich and opaque marble finish, use up to 5%, taking care not to exceed this limit to maintain proper curing and strength. Products like the Colourfun liquid colourants or the Colourfun Set are specifically formulated for easy blending and vibrancy, making them excellent choices for both subtle and bold effects.
When Customisable Transparency Makes a Difference
- Marble effects: Varying opacity creates realistic veining and depth.
- Decorative pieces: Light can be channelled or blocked to suit your artistic vision.
- Countertops and worktops: Solid finishes stand up visually to heavy use, while translucent layers add intrigue or highlight underlying textures.
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Choosing the right pigment and mastering transparency unlocks a wider range of marble and stained glass effects for your resin projects. Explore our full guide on how to colour resin for marble to deepen your skills and inspiration.