How to Clean and Store Acrylic Paint Brushes So They Actually Last

The first time you paint something, the brush usually behaves fine. It's the second time that goes wrong: you pull it out of the drawer a few weeks later and the bristles have turned into a stiff little paintbrush-shaped rock, useless for anything finer than smearing glue. Acrylic paint is the reason. It rinses out easily while it's wet, but it dries into a hard plastic film within about twenty minutes, and once that's set into the bristles, no amount of soaking brings the brush all the way back.

While you're still painting

• Rinse between colours, don't scrub. Swirl the brush gently in water and press it against the side of the cup. Scrubbing it against the bottom of the cup bends the bristles out of shape after a few uses.
• Use two cups if you can manage it: one for the first rinse, one for a final clean rinse. A single cup gets muddy fast, and cleaning a brush in already-dirty water barely cleans it at all.
• Never let a loaded brush sit unused for more than a few minutes. If you're stepping away mid-session, even for a phone call, rinse it first. Paint starts skinning over on the bristles faster than it looks like it will.

Cleaning up when you're done

1. Rinse under running water until it runs clear, not just until the cup looks clean. A brush can look rinsed and still have paint sitting deep near the ferrule, the metal band that holds the bristles in place.
2. Work a small amount of mild soap into the bristles with your fingers, in the direction of the bristles rather than against them. Ordinary dish soap or hand soap is fine; a specialist brush cleaner isn't necessary for acrylic.
3. Rinse again until no more colour lifts out of the soap. For a brush that's held a strong colour like red or black, this takes longer than feels reasonable. Stay with it rather than calling it clean early.
4. Reshape the bristle tip back to a point (or a flat edge, depending on the brush) with your fingers while it's still wet. This is the step almost everyone skips, and it's the one that keeps a detail brush actually pointed instead of splayed out.
5. Lay it flat to dry, or stand it bristles-up in an empty cup. Never leave a brush bristles-down in water or standing upright while wet. Water sitting at the ferrule loosens the glue holding the bristles in over time.

If paint has already dried in the bristles

It happens, usually after a brush gets left out overnight following a long painting session. Soak it in isopropyl alcohol or a proper brush cleaner for fifteen to twenty minutes; plain water won't touch acrylic once it's fully dried. Then work the softened paint out with your fingers under running water. It won't always come back to brand new, but a brush that looked unrecoverable often ends up fine again for base coats, even if it's lost some precision for fine detail work.

Storing brushes between sessions

• Dry, flat, out of direct sunlight. A windowsill feels like an obvious drying spot, but heat can warp cheaper plastic handles over a few weeks.
• Keep them loose, not packed tightly into a jar with a dozen others. Bristles pressed against each other for weeks can set into a bent shape that doesn't shake out easily.
• If you're storing one for a while, between one project and the next, a loose wrap of tissue over the tip keeps dust off without trapping in moisture.

Our figurine kits ship with a couple of brushes sized for exactly this kind of work: a fine one for detail, a slightly bigger one for base coats. If you end up painting a second figurine down the line, for a sibling's rakhi or a friend's housewarming, this same routine is what keeps those two brushes ready to go rather than replaced. See how the kit works →