Opaque vs Transparent Resin Colourants – What’s the Difference?

Understanding the Effects

Opaque resin colourants fully cover the underlying surface, producing rich, solid colours that mask anything beneath your pour. This is ideal when you want bold, uniform results or wish to conceal imperfections in your casting base.

On the other hand, transparent resin tints allow light to pass through the cured resin. This quality highlights embedded items, sparkles, or natural wood grain, creating a stained-glass or gemstone effect. These colourants are perfect for highlighting detail and bringing depth to pieces like jewellery, river tables, and art panels.

Choosing the Right Colourant for Your Project

Consider your creative aims when selecting a colourant. For a fully solid finish, an opaque dye like those in the Colourfun Liquid Epoxy Resin Colourant range is your best bet, providing intense pigment in just a few drops. If you’re seeking luminous, see-through effects, transparent colourants such as “Magic Crystal” will keep your resin clear yet vibrantly coloured.

• Opaque: Best for covering surfaces, hiding voids, or creating bold, modern looks.
• Transparent: Ideal for accentuating inclusions, layering colour, or achieving a delicate, glass-like finish.

When This Matters Most

The difference between opaque and transparent becomes essential in projects where visibility and light play a role. For example, showcasing flowers embedded in resin or crafting resin jewellery with a crystal appearance calls for transparent tints. Conversely, creating logo coasters or solid colour panels benefits from using opaque colourants.