How to Dye Epoxy Resin? | Color Your First Pour

Dyeing epoxy resin opens the door to custom colors, shimmering finishes, and one-of-a-kind projects, but the order of operations matters more than most beginners realize. Whether you’re tinting a river table or a small set of coasters, the process stays the same: mix the two-part epoxy completely before any color touches the batch, then build your color slowly. A project colored the right way cures clear and strong; an overloaded batch can stay tacky or never harden at all.

What Can You Use to Color Epoxy Resin?

Three colorant types cover nearly every epoxy project, and each gives a distinctly different look:

• Mica powder produces opaque, shimmering, or metallic finishes. A little goes a long way, and it suspends well in the resin.
• Liquid pigment or dye creates translucent or transparent color. These are highly concentrated, so you generally need only a small amount.
• Alcohol ink gives translucent effects and is often dropped onto poured resin and swirled rather than mixed in.

Resin-specific colorants are the safe choice because they are formulated for the chemistry of epoxy. The wrong additive can interfere with curing, weaken the final piece, or leave an unexpected finish.

Step-by-Step: How to Dye Epoxy Resin

Work in a well-ventilated, dust-free area with a protective sheet under your project. Gloves are a must, and a respirator is recommended for extended work.

Measure the resin and hardener according to your product’s exact ratio, then stir them together until the mixture is completely uniform. Only after the base epoxy is fully combined should you add color — tinting before A and B are mixed can throw off the color and alter cure behavior.

Add a small amount of colorant to the mixed epoxy and stir thoroughly, scraping the sides and bottom of the container as you go. Check the color, then add more gradually until you reach the shade you want. The more colorant you add, the darker and more opaque the resin becomes; smaller amounts yield lighter, more translucent tints.

Pour your project, then pass a heat gun or torch gently over the surface to pop any trapped air bubbles. Let it cure undisturbed in a dust-free spot. If you’re layering colors, some techniques let the base layer cure partially until tacky before adding the next colored layer, which keeps the colors from bleeding together.

How Much Colorant Is Safe to Use?

Resin coloring guides consistently warn against overloading the mixture. Most recommend staying around 5% colorant by weight or volume, while homemade colorants should stay under 6% of the total resin weight.

Exceeding the recommended percentage risks more than an off shade. The resin can resist curing properly, and the final piece can lose structural strength. The best practice is straightforward: mix a small test batch first, note the exact amount of colorant you used, and replicate that ratio for the full pour.

If you’re ready to stock up, our roundup of the best dyes for epoxy resin walks through the top-rated options for different effects and budgets.

Stir slowly while adding color to keep air bubbles to a minimum, and resist the urge to keep pouring in more pigment once you hit the shade you want. The cure depends on restraint.

FAQs

Can you use food coloring to dye epoxy resin?

Food coloring is not designed for epoxy chemistry and can interfere with curing or leave an uneven finish. Resin-specific colorants are formulated to mix cleanly without affecting the chemical reaction. A small test batch is the only reliable way to check whether any unconventional additive works.

Why is my colored epoxy still sticky after curing?

A tacky finish usually means the colorant threw off the resin-to-hardener balance, or the parts were measured incorrectly. Overloading pigment can also prevent full curing. Try a new batch at the correct ratio with less colorant, and test it in a thin layer before committing to a full project.

Can you layer different colors of epoxy in one project?

Yes, layering creates depth. Pour the first colored layer and let it cure until it’s tacky, then pour the next color on top so the layers bond instead of bleeding into one another. A clear top layer can also add gloss and protect the colored layers beneath.