How Much Colourant Should I Add to Resin?

← Back to How do you colour liquid resin?

Getting the right intensity and finish in your resin project depends on using colourant with care. Adding too much or too little can affect both the look and the cure of your finished piece. Here’s how to find the ideal amount for vibrant, reliable results.

Starting Dosages and Adjustments

Begin with just a few drops of liquid colourant per 100g of resin. This applies whether you’re aiming for a subtle tint or an opaque shade. Mix thoroughly and assess the colour—resin can look paler in its liquid state but will deepen slightly as it cures. If you want a bolder effect, add one drop at a time, mixing fully between additions. Resist the temptation to pour in too much at once, as that could hinder the curing process or cause streaks.

Highly concentrated colourants, like Colourfun, go a long way—a few drops often suffice.
Pastes and transparent dyes may require similar or slightly varied dosages, so always follow product instructions.

Why Not More? Potential Issues with Overuse

It’s crucial never to exceed the manufacturer’s suggested maximum dosage—typically, this is no more than 5% colourant by weight of resin. Adding too much can interfere with curing, resulting in tacky or soft resin, loss of clarity, or other unpredictable effects. Overuse may also lead to uneven results or diminished shine, especially in transparent projects.

Practical Mixing Tips for Consistent Results

For even, streak-free colour, always add colourant to your mixed resin rather than to individual components. Stir slowly and thoroughly, scraping the sides and base to ensure a uniform blend. Test colours in a small batch first if you’re unsure or trying a new shade. Remember, specialised sets such as the Colourfun Set let you blend and customise hues as needed.

When Precise Colourant Measurement Matters

If you’re working on projects requiring crystal clarity—like jewellery, river tables, or layered ocean art—accurate control over colourant dose is vital. Slight variations can affect transparency, especially with products like Magic Crystal transparent dyes. For opaque or highly pigmented finishes, pay extra attention to not exceed recommended levels to maintain reliable curing.

Related guides

How Do You Colour Liquid Resin

Careful measurement and gradual adjustment of your colourant mean trouble-free results, whether you’re tinting resin for art, jewellery, or functional craft. For more help with resin colouring options and techniques, explore our full resin colouring guide at How do you colour liquid resin?.