Acrylic paint with resin

I first tried combining acrylic paint with epoxy resin on a small wooden coaster, expecting the paint to tint the resin evenly. The resin turned cloudy after I added too much paint, and I spent about an hour scraping the failed mixture from my cup and starting again with a much smaller amount.

How I combine acrylic paint and resin

Acrylic paint and epoxy resin can work together, but I treat them as two different materials with different curing mechanisms. Acrylic paint is water-based and dries as water leaves the film, while epoxy resin hardens through a chemical reaction between resin and hardener.

The easiest approach is often to paint the surface first, let the acrylic dry completely, and then apply resin over it. Epoxy resin can be used over a fully dry acrylic painting without dissolving the acrylic layer. I use this method for art panels, painted wood, coasters, and decorative surfaces where I want a glossy protective layer.

If the goal is simply to protect an acrylic painting, I prefer applying resin over the cured paint rather than mixing acrylic paint directly into the resin.

Acrylic paint can also be used as a resin colorant. ArtResin specifically allows acrylic paint for tinting, while warning that acrylic is water-based and can make the mixture more opaque, reduce working time, or cause some mixtures to thicken or cure prematurely. Their current guidance limits total colorant to 6% of the combined resin and hardener volume.

Less acrylic paint is usually safer than more.

For transparent color, I use resin-specific pigments instead. When I want an opaque painted appearance, a tiny quantity of highly pigmented acrylic can work, provided I test that particular paint with that particular resin first.

Never assume that one successful acrylic-and-resin combination means every acrylic paint will behave the same way.

What this craft really entails

Working with acrylic paint and resin usually falls into two techniques: painting with acrylic first and coating it with cured resin, or incorporating a small amount of acrylic into liquid resin as a colorant. The first method is considerably more predictable because the acrylic and epoxy remain separate layers.

Epoxy resin consists of a resin component and a hardener that must be combined in the manufacturer’s specified proportion. Once mixed, the chemical reaction begins. Acrylic paint introduces pigment, acrylic binder, water, and other formulation ingredients into that system. Those additional materials can change viscosity and interfere with curing if too much is added.

The technique has become common in resin art because a cured epoxy layer can produce a thick, glossy surface over painted artwork. A level work surface matters because liquid resin flows before it cures. Dust also becomes highly visible on a glossy finish, so I cover the piece while it cures.

For direct tinting, I mix the resin and hardener according to the resin manufacturer’s instructions before introducing the acrylic colorant unless the specific product instructions say otherwise. I add color in tiny increments and scrape the sides and bottom of the cup while stirring slowly.

The difference between tinting resin and painting with acrylic is especially obvious in transparency. A small amount of acrylic can create a translucent or semi-transparent color, while adding enough to make the resin strongly opaque can also add enough water and binder to create curing problems.

Why did my resin become thick immediately after adding acrylic paint? The paint may contain enough water or other ingredients to alter the resin mixture, and some acrylic formulations are specifically known to shorten working time.

Surface preparation creates another set of skills. Acrylic paint must be dry before resin is poured over it. Loose glitter, powder, paper edges, or other decorations can also become trapped in the resin, so I secure everything before mixing the epoxy.

Good ventilation and the protective equipment specified by the resin manufacturer belong in the process from the beginning. I also avoid using food containers or kitchen utensils for resin work.

Do not improvise the resin-to-hardener ratio to compensate for extra acrylic paint. The manufacturer’s mixing ratio controls the epoxy cure.

Essential materials and tools

For an acrylic painting that will receive a resin coat, I calculate the paint coverage separately from the resin quantity. The calculator below estimates how much acrylic paint is required for a given painted area.

I always test the exact acrylic paint, resin, surface, and color concentration on scrap material before committing a finished piece.

Key techniques and skills

• Prepare and level the painting surface before mixing resin.
• Allow acrylic paint to dry completely before applying epoxy over it.
• Follow the resin manufacturer’s specified resin-to-hardener ratio precisely.
• Measure the two resin components accurately using the method specified by the manufacturer.
• Mix slowly and thoroughly while scraping the sides and bottom of the cup.
• Add acrylic paint in very small increments when using it as a resin colorant.
• Keep total colorant within the resin manufacturer’s stated limit.
• Test the tinted resin for curing, opacity, and working time before a large pour.
• Use a level surface so the liquid coating spreads evenly.
• Protect the curing piece from dust and debris until the resin has hardened sufficiently.

Common mistakes and how to avoid them

1. Adding too much acrylic paint. Excess colorant can disrupt curing. ArtResin recommends keeping total colorant at or below 6% of the combined resin and hardener volume for its product.
2. Using wet acrylic paint under resin. Moisture can become trapped beneath the epoxy and create cloudiness or surface defects. Let the acrylic layer dry completely first.
3. Changing the resin-to-hardener ratio. Adding extra hardener does not compensate for additional paint. Measure both components exactly as directed.
4. Choosing acrylic for transparent effects. Acrylic paint tends to make resin more opaque. Use a resin-compatible transparent colorant when maintaining clarity is the priority.
5. Mixing aggressively. Fast stirring introduces more air. Stir steadily and scrape the container walls and bottom.
6. Pouring onto an unlevel surface. Resin follows gravity while liquid. Check the table with a spirit level before pouring.
7. Skipping a compatibility test. Different acrylic formulations behave differently. Test a small amount before using an unfamiliar paint in a finished project.
8. Applying heat carelessly. Heat can help release surface bubbles, but excessive heat can damage a curing resin surface. Follow the resin manufacturer’s instructions for heat use.

I do not use a large finished piece as the first compatibility test. A small coaster-sized sample costs much less to lose.

How I use acrylic paint with resin

When I want a glossy resin coating over an acrylic painting, I finish the painting first. I check the surface for loose pigment, dust, and raised particles, then leave it until the acrylic is completely dry.

I prepare the resin only after the artwork is ready. For a coating project, I measure the required resin and hardener according to the product instructions and mix slowly. I scrape around the bottom edge of the cup because unmixed material there can remain soft.

I pour the resin near the center of the panel and spread it toward the edges. On a raised-edge wooden panel, I use the lip as a physical boundary. On a flat surface, I watch the edges closely so the resin does not run over the sides.

Dry acrylic first, resin second.

For tinting resin itself, I make a separate small test cup. After mixing the resin and hardener correctly, I add a tiny quantity of acrylic paint and stir until the color is uniform. If the mixture becomes noticeably thicker, cloudy, stringy, or unusually warm, I stop using that combination.

A resin-specific pigment is my first choice when I need strong color in a clear epoxy system. Acrylic paint is more useful when I deliberately want an opaque painted effect and have already tested the combination.

I also compare the cured test against the wet mixture. Resin can change the visual depth of a color, while a glossy surface makes dark colors appear especially saturated. A color that looks perfect in the mixing cup can look substantially different once it is spread into a thin layer and cured.

If I am coating an acrylic painting rather than tinting resin, I do not need to mix the two materials at all. The cured acrylic remains underneath and the epoxy becomes the clear top layer.

The cleanest resin results usually come from changing one variable at a time. If I change the acrylic brand, pigment amount, resin, and surface together, I have no useful way to identify the cause of a failed cure.

The calculator below helps determine proportional quantities when mixing acrylic colors, which is useful when I need to create a repeatable acrylic color before applying it beneath resin.

Final thoughts

Acrylic paint and epoxy resin can complement each other well when I keep their jobs separate. Acrylic gives me the painted image or color layer, while epoxy can provide a thick glossy coating. Directly tinting resin with acrylic is possible with some products, but it requires much tighter control over quantity.

My preference is to use resin-specific colorants whenever transparency, predictable curing, or a large pour matters. I use acrylic paint in resin mainly for small, tested color adjustments where a more opaque appearance is actually useful.

The most expensive mistake is usually the large test. I get much more reliable results by sacrificing a small cup of resin first and recording the exact paint, amount, resin ratio, and curing result before moving onto the finished piece.