Choosing the right paint or colourant for plastic and resin is key to achieving professional, durable, and vibrant results. Whether you are casting jewellery, crafting art, or decorating DIY objects, selecting products specifically made for epoxy and plastic is essential for success. This page is your in-depth guide if you’re searching for the most suitable colour solutions for resin or plastic projects.

Comparing Paint and Colourants for Plastic and Resin

Not all pigments and paints are equal when it comes to plastic and resin. Conventional paints (like acrylic or spray paints) often do not bond well with plastics or can affect resin clarity and stability. In contrast, dedicated resin colourants—such as epoxy resin paste, liquid colourants, and transparent dyes—are formulated for seamless blending, vivid pigmentation, and optimal compatibility with the curing process. The main differences between these products are their opacity, ease of mixing, compatibility with specific resin systems, and the finished look—ranging from solid to transparent effects.

Types of Colourants for Resin Art

Specialist resin colourants—such as pastes, liquid pigments, and transparent dyes—are engineered to blend seamlessly, ensuring longevity and vibrancy. Each is designed to maintain resin’s physical characteristics, so your project stays beautiful and durable. Some offer solid effects, others clear or stained-glass-like finishes.

“Colourfun Set” – Liquid Epoxy Resin Colourant Set for Solid Colour Effects

The “Colourfun Set” offers nine intense paste colourants designed for transparent epoxy resin art and large-volume castings. These pastes distribute colour evenly without streaks, allowing both translucent “sea water” looks and solid, opaque effects. Thanks to their high concentration, only a few drops are needed per litre of resin, making the set both economical and effective. This set is ideal for resin artists, hobbyists, and professional makers aiming for bold colours and efficient mixing. For more options, see our Dyes and Pigments category.

“Colourfun” – Liquid Epoxy Resin Colourant 25-100ml – High Coverage

If you prefer liquid pigments, the “Colourfun” Liquid Colourant allows you to tailor your result from deep opacity to delicate stained glass effects. It is highly concentrated, compatible with the Resin Pro range, and remains easy to blend—perfect for resin artists and those creating professional castings. One small bottle covers up to 2–3 kg of resin, ensuring lasting value, and is both cruelty-free and vegan-friendly. Opt for this solution when detailed precision or subtle shade variation is important to your project.

“Magic Crystal” – Transparent Resin Colour 45ml

The “Magic Crystal” Transparent Resin Colour is specially designed for projects where clarity and a glass-like appearance are paramount. Perfect for jewellery, geode, or mineral effects, it maintains vibrancy without any cloudiness or sediment. Mix this colourant into Resin Pro transparent resin for unique, brilliantly translucent outcomes, ideal for those who want to experiment with crystal or gemstone aesthetics.

“Magic Crystal” – Set of 5 Transparent Colourants, 5 x 45ml

For variety and ease, the “Magic Crystal” Set includes five transparent colourants: Emerald, Amber, Ruby, Turquoise, and Amethyst. Designed specifically for colouring resin crystals, this set ensures colours remain perfectly transparent after curing. Use it if your goal is to create custom coloured gemstones or crystal style effects in your resin art. For the full range of compatible options, browse our Dyes and Pigments category.

Tips for Colouring Resin and Plastic Successfully

For best results, always mix colourants thoroughly into the resin before pouring to minimise streaks and air bubbles. Use only recommended proportions—never exceed 5% pigment by weight—to preserve curing strength and clarity. Transparent colourants are perfect for glass-like effects, while pastes deliver dense colour. Always select products tailored specifically for epoxy or UV resin systems, as traditional paints can compromise your project’s finish or adhesion. Remember to test your chosen colourant on a scrap piece before full-scale work to ensure the desired effect.

Pro Techniques for Resin Colouring

Intense, brilliant colours result from gradual mixing, starting with small amounts of pigment. Avoid over-pigmenting, which can affect resin curing or make castings brittle. Easy to mix, specialist colourants ensure consistent results and custom shades every time.