How to Repair Concrete Sealer

When moisture gets under concrete it can cause quite a bit of damage. If you live in a colder climate, water can be especially damaging if it freezes just below the concrete's surface. Concrete sealants are applied to the surface of concrete to protect it from moisture. However, over time, these sealants either wear away or begin peeling and need to be repaired. Apply a second coat of the same type of sealer over the first coat to give the concrete surface continuous coverage.

5-gallon bucket
Powder detergent
Broom
Garden hose
Rust stain remover
Rubber gloves
Rag
Paint roller
Extension pole
Concrete sealer

Instructions

- 1
  Fill a 5-gallon bucket about 3/4 full of water. Add 1 to 2 cups of powder detergent. Pour some of the water over a section of the concrete floor. Scrub the moistened concrete with a broom to remove surface dirt. Repeat until the entire concrete surface is clean. Rinse the surface with clean water from a garden hose.
- 2
  Fill a 5-gallon bucket about half full of water. Add 1 cup of rust stain remover into the water. Put on a pair of rubber gloves and dip a rag into the water. Wring the rag out over the rust stains on the concrete surface. Scrub the rust stain to clean it off the concrete.
- 3
  Wait about 24 hours for the concrete surface to completely dry. Attach a paint roller to an extension pole. Dip the paint roller into concrete sealer. Roll the sealer onto the concrete surface in a back and forth motion, the same way you would if you were painting a wall. Cover the entire concrete surface with sealer.

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