How to Remove Paint from Concrete using Acetone
One way to remove paint from concrete is to use acetone, which works well for oil-based, acrylic, and enamel paints. Acetone’s available in quart and gallon sizes; you’ll need enough for a few applications for each job.
You’ll also need:
Bucket or hose Respirator mask Gloves Eye protection Acetone Stiff-bristled or wire brush
Steps:
How to Remove Paint from Concrete Using a Pressure Washer
Pressure washers can be very helpful for removing stains from concrete. Use a pressure washer with a maximum output of at least 3,000 PSI. The water pressure alone is often enough to break the bond between the paint and concrete, but be sure to protect plants and structures in the area. Professionals often use pressure washers with water heaters to remove paint stains. While these pro-grade tools might be too much of an investment, DIYers can replicate this method by soaking the paint stain in hot (not quite boiling) water. Heat a pot of water on the stove and pour it over the stain, being careful not to splash or burn yourself. Apply a towel over the stain and soak it in hot water. After a few minutes, proceed with pressure washing as outlined below. In addition to the pressure washer, you will need:
Plastic sheeting Protective gear (gloves, pants, long-sleeved shirt, eye protection, respirator mask, hat) Paint thinner (optional)
Note: If the paint stain is stubborn, reduce the distance between the nozzle and the stain or increase the pressure washer’s output. Do not use the 10-degree nozzle (red), or it could damage the surface. For oil-based stains, you may need to use paint thinner. This method is less environmentally friendly and can cause injury. Be sure to protect plants, other painted surfaces, and vehicles and ensure children and pets are not in the area. Also, wear long sleeves, pants, gloves, safety glasses, a hat, and a respirator mask to prevent injuries.
How to Remove Paint from Concrete Using a Grinder
Sometimes the paint on the concrete isn’t a spill or accident. It’s an actual coat of paint, which can be much more difficult to remove. Instead of paint thinners and wire brushes, an angle grinder fitted with a diamond wheel will be faster. You will need:
Window fan Broom Angle grinder with dust collection attachment 4.5-inch diamond wheel Wet/dry vac with HEPA filter Respirator mask Leather gloves Knee pads Eye protection
Don’t overreact to spilled paint. It’s often better to let the paint dry and harden as one big thick skin than to spread it around with water or a rag. A final note on stains that resist removal: If a paint stain is so stubborn that no combination of solvents, wire brushes, or pressure washers will remove it, consider giving the entire surface a fresh coat of paint, hiding stains from existence altogether.
