How to Avoid Over-Pigmenting Epoxy and UV Resin

How to Avoid Over-Pigmenting Your Resin Projects

Achieving vibrant or transparent colour in resin is exciting, but using too much pigment can easily cloud your results and cause issues with curing. Explore how to find the right balance for stunning resin creations.

Understanding Pigment Concentration

When colouring epoxy or UV resin, it’s essential to keep pigment concentration in check. Over-pigmenting can lead to cloudiness, reduce luminosity, and even interfere with the chemical reaction needed for proper curing. Most resin colourants, such as the Colourfun liquid colourant, are highly concentrated—meaning only a minimal amount is required for rich, bold shades or translucent effects.

Tips for Achieving the Perfect Tint

Start with a tiny amount: Add just a drop or two of pigment, mixing thoroughly before adding more. It’s always easier to intensify colour than to dilute it.
Aim for up to 5% pigment relative to your resin volume. Surpassing this can negatively impact resin clarity and strength.
Test on a small batch first if you’re experimenting with new colourants or effects, especially for pieces where transparency is important.
Use products designed for compatibility, like the Colourfun Set or Magic Crystal dyes, to avoid unexpected reactions.

When This Matters Most

Careful pigment use is crucial for projects requiring glass-like clarity, vivid transparency, or reliable curing—such as jewellery, crystal effects, or intricate art pieces. Over-pigmenting can obscure detail and reduce the desired finish.

Related guides

How To Colour Resin Objects

Managing pigment levels makes all the difference in resin art, helping you achieve flawless results. For more expert advice on colouring resin, see our main guide on how to colour resin objects.