Updating an old concrete carport
If it is damp, the paint job will likely fail and the project is best abandoned.
An etching process with a mild acid will remove any existing grease and grime.
TIP: make full broom strokes across the entire distance of the work area without stopping (all broom strokes should be made in the same direction for uniformity of appearance).
In the past, when a concrete patio or driveway started to show serious signs of aging, using a jackhammer or bringing in a bulldozer were the only repair options. Polymer-based cement resurfacers are formulated to transform cracked, spalled, weatherworn concrete to like-new condition.
The top dressing we used, Ardex All-Purpose Concrete Resurfacer, is made of portland cement and high-performance polymers.
It's mixed with water and applied with a steel trowel, squeegee or push broom to a thickness of only 1/16 inch. bag costs about and covers 50 to 60 square feet.
She has written for "Michigan Meetings Magazine" and is also the owner of Spectacularstrolls.com, an online business of self-guided walking tours.
Tape a large piece of plastic over a portion of the old concrete garage floor, attaching all edges of the plastic to the floor. Linda Shepard has been staff writer for "C & G Newspapers" for over 10 years, covering local government and crime and serving as the newspaper's food writer.
Hose down nearby plants and cover them and walls and doors with plastic sheeting. Use combination clear/etcher to prepare surface for new coating.
Test concrete with droplets of water to make sure surface is porous enough to bond with sealer; if water is absorbed, you can seal it. Keep nozzle 18 inches above surface and application light and even; do not let stain pool.
Step 5 Pour the resurfacer onto the concrete in one-foot wide strips.
Step 6 Scrub the material into the concrete surface using a long handled squeegee.