Step-by-step guide to tinting epoxy grout for unique designs

Personalising the colour of epoxy grout opens up countless possibilities for creative tiling, bespoke mosaics, and decorative installs. Whether you want subtle tints or bold hues, adding pigment to epoxy grout lets you control the style and finish of your project with ease. This guide covers everything you need to know to get consistent, beautiful results every time.

What You’ll Need

• “Colourfun” – Liquid Epoxy Resin Colourant 25-100ml – High coverage: For adjustable opacity and vibrant pigmentation.
• “Colourfun Set” – Liquid Epoxy Resin Colourant Set for Solid Colour Effects: Provides a palette of intense, blendable shades.
• “Renaissance” – Set of Dyes, 4 Colour Palettes: Suitable for marble and patterned grout looks.
• “Magic Crystal” – Transparent Resin Colour 45ml: Delivers vivid transparent hues for special effects.
• Stirring sticks and mixing containers
• Nitrile gloves and protective wear
• Clean workspace and measuring tools

Choosing the Right Colour Effects

Selecting between opaque, translucent or marble effects depends on the design you wish to achieve. Liquid colourants work well for uniform intense shades, while dye sets or transparent colours are perfect for artistic projects that require light, crystal, or patterned results. Always check compatibility with your epoxy system before mixing.

Step 2: Measure and Combine the Epoxy Grout

Follow the epoxy grout manufacturer’s ratio for Part A (resin) and Part B (hardener), as accurate measuring is crucial for setting and durability. Slowly add the hardener to the resin and blend using a stirring stick with a steady, circular motion. Mix until thoroughly combined and no streaks remain—this is the foundation to ensure the pigment disperses evenly later. Avoid whipping air bubbles into the mixture.

Step 4: Test, Apply, and Adjust as Needed

Before proceeding to application, test a small batch of coloured grout first. Apply a sample to a spare tile or board and let it cure. Assess the dried colour, as tones may change slightly during curing. If the shade is too pale, add more pigment in tiny increments; if too bold, dilute with more uncoloured epoxy grout. Testing also reveals if the mixture was blended enough or requires extra mixing for uniformity.

Tips and Common Mistakes When Colouring Epoxy Grout

Work efficiently, as coloured epoxy grout has a limited pot life once mixed. Stick to pigment ratios under 5% to maintain the strength and finish of your grout; over-pigmentation leads to sticky or undercured grout. Clean all tools promptly with appropriate cleaner to avoid hardened residue. Remember, environmental factors such as temperature and humidity can slightly alter cure times and final colour appearance.

Key Advice for Consistent Colour

Mix in small, measured batches to control the outcome and minimise waste. Record pigment amounts and ratios used for replicable results on larger or future projects. If possible, blend the colourant into part A (resin) before adding the hardener to achieve smoother integration.