How to Paint a Basement Floor

Almost nothing perks up a cement basement floor like a coat of paint---turning that drab, gray hunk of cement into a bright and colorful surface can transform almost any basement into an enjoyable space. Painting your basement floor also protects it from moisture, which will keep the basement dryer and warmer and ultimately prevent mold growth.

  • De-greaser
  • Mop
  • Rags
  • Masking tape
  • Paint roller
  • Paint brushes
  • Primer and stain blocker
  • Flat latex paint
  • Fans
  • Sealer
Check your floor for seepage problems because it's important that you work with a floor that is completely dry. If you discover any standing water or damp areas, call a professional to fix any seepage problems before painting.

Scrub grease spots on the floor with de-greaser. Rinse the area with water and wipe clean with rags. Allow any washed areas to dry thoroughly before starting your painting project.

Repair cracks or imperfections in the floor with cement. Mix cement and water as per manufacturer's instructions, until the mixture is approximately the consistency of thick pancake batter. No sand or gravel is needed. Use a trowel to smooth the cement over cracks or holes in the floor. Allow your repairs to dry completely before painting.

Tape off areas with masking tape that you don't want primed with primer-sealer. Apply a coat of sealer along the edges of the room using a paint brush. Apply the sealer to the floor using a roller and allow the first coat to dry completely. If desired, use fans to help speed the drying process. Once the sealer is dry, apply a second coat and allow the second coat to dry.

Apply two coats of a flat latex paint using a roller, allowing sufficient time for the first coat to dry before applying the second coat. After the second coat has dried completely, paint the edges of the floor using a paint brush.

Apply two coats of cement sealer, allowing the first coat to dry completely before applying the second coat. Allow the second coat to dry thoroughly before walking on your newly painted basement floor.

Tips and Warnings

  • Never paint damp concrete because the paint will not adhere properly and will eventually peel.

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