What Kind of Paint Do I Use on Concrete Steps?

Sealer

Test the concrete to be sure it does not allow moisture penetration. Tape a sheet of heavy plastic down on a section of concrete with an airtight seal all around it. Leave the plastic for one or two days. Check under the plastic to see if any moisture has collected. If moisture is present, the concrete should be sealed before painting. There are several types of concrete sealers on the market. Before purchasing, be sure the sealer is compatible with your project. Use an interior or exterior sealant as appropriate and make sure it is compatible with horizontal and vertical use. Follow the manufacturer's advice concerning dry time.

A concrete primer should be applied to the concrete surface before painting. Concrete is an extremely porous substance. Primer works as a bonding agent between the paint and the concrete. There are a variety of concrete primers available. Acrylic water-based primers are common. These primers are absorbed into the concrete better than oil-based primers. Epoxy primers are very durable and are commonly used in commercial applications. Using the appropriate primer will increase the lifespan of your paint.

You may be able to bypass priming if you purchase a concrete paint with primer. Consult with a paint specialist to ensure this choice is compatible with your project. Masonry paint is especially designed to be used on concrete, stucco and shingles. Most masonry paints are acrylic or latex based. Oil-based paints are not generally recommended for concrete, especially surfaces exposed to water. Look for a paint that offers an anti-slip property or consider purchasing a non-slip additive to mix with your paint.

Unlike paint, concrete stains tint the surface while allowing the texture of the concrete to show through. Concrete stains are available in an acid and an acrylic stain. Acid stains penetrate the concrete's pores and chemically interact with it. The stain creates a mottled effect that resembles marble. Acid stains are commonly available in earth-tone colors. Acrylic concrete stains are available in a wide variety of colors and are suitable for nearly any concrete surface. Acrylic stains act like a dye and provide a more uniform coloring than acid stains.