How Do You Paint Over Old Concrete?

What paint will stick to concrete?

ANSWER: Today’s epoxy, polyurethane and acrylic paints wear much better than oil and alkyd paints on concrete.

Before applying a water-resistant paint, clean and roughen the surface..

Do you have to sand concrete before painting?

Before you start, remove any loose or peeling paint by sanding with medium-grit sandpaper or wire-brushing the surface. If necessary, de-gloss any glossy surfaces by scuff-sanding or using a chemical deglosser. For your safety, wear protective clothing, eye goggles and acid-resistant rubber gloves and footwear.

Do I need special paint for concrete?

The best paints for concrete contain binders that allow the coating to contract and expand with concrete as it cools and warms. Concrete porch and patio paints are frequently low-luster acrylic latex paints designed to conceal imperfections and resist fading, scuffing, cracking and UV damage.

What is the best waterproofing paint for concrete?

Best Seller Zinsser 5 Gal. WaterTite LX Low VOC Mold and Mildew-Proof White Water Based Waterproofing Paint. … Zinsser 5 Gal. WaterTite Mold and Mildew-Proof White Oil Based Waterproofing Paint. … Zinsser 5 gal. Block Filler 2X Primer. … Zinsser 3 gal. … Zinsser 1 Gal. … DRYLOK 1 Gal. … Zinsser 3 gal. … Zinsser 1 gal.More items…

How do you paint concrete?

STEP 1: Patch gouged or otherwise damaged areas with concrete filler. … STEP 2: Clean the concrete surface with TSP. … STEP 3: Let the surface dry thoroughly before you begin to paint the concrete. … STEP 4: Brush paint onto the perimeter of the concrete. … STEP 5: Roll on more paint to cover the interior.More items…

Can I use spray paint on concrete?

Most exterior spray paints adhere well to clean, unfinished concrete, and you can add a finishing coat of clear enamel to provide a glossy sheen and to make sure the paint stays put on the concrete.

Do I need to prime concrete before painting?

Generally speaking, priming is so essential to successful painting outcomes, concrete will always needs a primer. However, the existing surface needs to be primed before painting if: It is unpainted. It is peeling.

Is painting concrete a good idea?

Painted concrete has its advantages. A fresh coat of paint or stain can really spruce up concrete basement or garage walls and floors and bring new life to a worn concrete patio. … Coating a concrete surface with paint can also make for easier cleaning and maintenance, another definite plus.

Can I paint over old paint on concrete?

Allow the concrete surface to dry. Existing paint needs to be scraped and sanded. Scrape any areas with loose or flaking paint, and lightly sand using fine (120 grit) sandpaper. Lightly sand intact areas of paint as well to give them the grit needed to receive new paint.

Is it better to paint or stain concrete?

For the ultimate in long-lasting, durable color, choose concrete stain. Because concrete stain doesn’t just sit on the surface of the concrete, but actually penetrates into the pores of the concrete to some degree, your color is not going to peel, chip, or flake.

How soon can you paint after etching concrete?

Allow the surface to dry completely before applying any coatings, paints, stains or sealers. Two gallons of mixed etching solution will cover up to 500 square feet. Allow to dry for 24 hours before staining, sealing or coating.

How long does paint last on concrete?

Allow the paint to cure for three to four days for an exterior floor, or a full week for a concrete driveway, before you start to use the good-looking new surface.

How do you paint over a concrete floor?

Use a durable, oil-based epoxy paint that has been formulated to withstand the abuse of automobile traffic when painting garage floors. Remove all flaking, peeling paint using a scraper and wire brush. Smooth and sand rough edges using 100-grit sandpaper.