How To Sand Concrete Floor For Epoxy. Clean the floor and make sure no dirt or dust is on the surface. If your garage floor is already painted, you have to sand it down using a power sander for faster and easier results.
Clean the floor carefully with vacuum or damp rag. Now switch to a grit paper that is finer. Vacuum the entire garage floor from corner to corner to remove as much dust as.
Wait 12 Hours At Least For The First Coat Of Concrete Floor Paint To Dry And Apply A Second Coat.
Now switch to a grit paper that is finer. If your garage floor is already painted, you have to sand it down using a power sander for faster and easier results. Previous coatings or paints should be removed before a new epoxy coating is applied.
Determine If Moisture Or Dampness Is Coming Up Through The Concrete From The Ground.
Lightly grind the concrete using a walk behind floor grinder or a hand grinder. Muriatic acid, phosphoric acid or sulfamic acid. Examine the concrete floor to ensure you have removed any paints, stains or other coatings.
After The First Pass, Go Over The Floor With A Fine Or Superfine Sandpaper Disc To Finish The Surface.
Mop the area and let it dry thoroughly before applying your stains or finish coats. The second method for preparing your floor is diamond grinding. This method will restore smoothness to your floor, which is needed prior to an epoxy coating.
Epoxy Is An Adhesive, Paint, Plastic, Or Other Material That Is Created As A Polymer Of Epoxides.
Before applying the coating, new concrete must cure for 30 days. After than change to an 80 to 120 grit sandpaper for more smoothing result. Any cracks or concrete spall should be filled and stabilized before a new epoxy coating is applied.
The Acid Opens Up The Pores Of The Concrete, Giving The Epoxy More To Grab.
You will want to use a hand sander or orbital sander for sanding concrete walls. Allow drying for at least 3 hours. With a broom, sweep away any dirt or dust from the floor.