Q: Is it possible to remove the finish on a concrete garage floor (applied by a painter) that has a rubbery texture? Rainwater from car and tires stand for days, and the floor is slick and slippery even when dry. We’d like to return the texture to the original rough finish.
A: Depending on the “rubbery” finish on the floor, you may be able to remove it with a diamond blade floor grinder. Concrete floors that have been poorly painted, severely cracked or have a rough finish can be ground to a smooth surface with the grinder. Although concrete grinders and extra blades can be obtained from rental companies, I would strongly recommend the work be performed by a professional.
A rubbery surface coating on the floor might stick to the grinding blades and damage the equipment. You would also need a hand grinder to expand and clean cracks. If there are chipped and damaged sections of the floor, you will need a specialty mixed concrete to adhere to the existing floor.
There will also be lots of concrete dust and debris that will need to be controlled with specialized equipment to protect both the home and the workers. Once the floor has been prepared for a new covering, you can then decide whether or not to do it yourself or have it professionally finished. There are several videos on YouTube showing how to grind a concrete floor.
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C. Dwight Barnett is a certified master inspector with the American Society of Home Inspectors. Reach him at d.Barnett@insightbb.com.