How much pigment should I add to epoxy grout?

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Adding pigment to epoxy grout lets you customise colour and create a professional finish for your tiling or creative resin project. Correct pigment ratios are essential to preserve the grout’s appearance and performance.

Recommended Pigment Quantity

The ideal pigment amount for tinting epoxy grout typically ranges from 1% to 5% by the total weight of your mixed resin and hardener. Using 1% achieves subtle translucent hues, while up to 5% produces bold, opaque colours. Exceeding 5% is not recommended, as higher concentrations may interfere with the grout’s curing and durability.

How to Mix Pigment for Even Colour

Start by weighing your fully mixed epoxy grout resin and hardener. Gradually add the pigment—such as Colourfun liquid colourant—a little at a time. Stir thoroughly after each addition to ensure uniform colour, and check the shade before applying more pigment. Always follow product-specific instructions for the best results and avoid over-pigmenting, which can affect the final strength.

Choosing a Pigment for Your Project

Consider the type of colour and finish you’re aiming for. For vivid, solid colours, a highly concentrated set like the Colourfun Set ensures stable and even coverage. For artistic or marble effects, using a few drops from a dedicated dye set, such as the Renaissance collection, gives controlled, creative results.

When This Matters

Getting the pigment ratio right is crucial when colour strength, clarity, and grout performance are priorities—especially for decorative flooring, feature walls, or creative resin grout applications where evenness and long-term durability are important.

Related guides

How Do You Colour Epoxy Grout

Perfecting your pigment ratio not only achieves your desired look but also preserves the quality of your epoxy grout. For more techniques and product recommendations, visit our main guide on how to colour epoxy grout.