You can colour UV resin in a few different ways depending on the look you’re trying to achieve.

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Resin Pigments (The best option in our opinion)

• Liquid pigment dyes – Specially made for UV resin. A few drops go a long way.
  Check out pigments these from Amazon.
  
• Powder pigments – Mica powders or chameleon powders can be mixed in for a metallic, pearlescent, or color-shifting effect.
  We love these ones.

✅ Pros: Designed for resin, good colour payoff, minimal curing issues.
⚠️ Tip: Start with a tiny amount—too much pigment can block UV light and prevent curing. Light needs to penetrate through the whole piece / mould.

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Alcohol Inks

• A few drops of alcohol ink (the same as you’d use for epoxy resin) give vibrant, translucent colours.
• Good for “galaxy,” marbled, or stained-glass effects.
• Octopus Fluids are some of the best alcohol inks on the market. Expensive but worth every penny and a little goes a really long way.

✅ Pros: Easy to blend, vivid transparent colours.
⚠️ Cons: Too much can weaken the resin and slow curing.

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Acrylic Paint (In Small Amounts)

• Add just a tiny drop of acrylic paint to tint the resin.

✅ Pros: Cheap, lots of colours available.
⚠️ Cons: Can make resin cloudy or soft if you add too much. Again, light needs to penetrate through the colour so can’t make the resin a solid block colour.

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4. Other Colourants

• Eyeshadow/makeup powders – Similar to mica powder, works well in small amounts.
• Glitter – Doesn’t colour the resin itself, but adds sparkle and shine.

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Tips for Best Results

• Mix thoroughly to avoid streaks.
• Don’t add more than ~5–10% colourant to resin, or it may not cure properly.
• Test a small batch first to see how it reacts.
• Use thin layers if you’re going for deep or opaque colours so the UV light can still penetrate.
• Use clear moulds or open back bezels for best results as you can cure both sides.
• Ensure you don’t make the resin opaque (solid block of colour) or it won’t cure.

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