Test Your Concrete

If your driveway or concrete slab has previously been painted, stained or sealed, you must remove these finishes before applying Polacrete™. Most of these finishes will not be able to be removed with muriatic acid and may require professional sand blasting or other commercial method of removal. Additionally, look for foreign substances that may have been splattered or dripped on the surface, such as road tar, paint or gum. These substances would not have been removed by the oil cleaner or muriatic acid and will have to be removed by grinding or by using a proper chemical remover, such as Gum Off. Any grinding on high spots should have already been completed before acid etching. If your driveway or concrete slab contains waterproofing additives that are sometimes used in residential driveway applications, Polacrete™ will not penetrate, nor properly bond to the surface. If you are unsure of the presence of waterproofing additives or surface sealants that may have been added to or applied on a slab, it is recommended you test with water. If water beads up or separates on the surface, you cannot apply Polacrete™ until condition is changed, if possible. Fractures, cracks or crumbling in a concrete slab may be due to high lime content or from too few expansion joints, earthquakes, poor original concrete mixture, earth movement, tree roots or heavy equipment combined with over watering adjacent to concrete. Severely damaged sections may require complete removal, compaction, drilling, adding rebar and checking for expansive soil (ask customer) and repouring. Because of its liquid application form, Polacrete™ is also a crack repair product. It can fill some very small and shallow fractures and also by adding more silica sand you can fill and repair large cracks and depressions. You must perform oil spot cleaning (STEP 1) and etching process with muriatic acid solution (STEP 2) before patching to enhance penetration and bonding. Polacrete™ is designed to protect the old concrete surface from the elements of weather while enhancing its cosmetic look, also repairing damaged or substandard concrete.