This is my second post. Last fall I finally got around to recoating my 2 1/2 car garage in the Chicago area. It was 1-year old concrete, in generally pretty good condition, with a smooth finish inside and a brushed finish in an outside 6 foot apron. After considerable research, I bought the Nohr-S kit with Nohr-Prime in October. Unfortunately, the weather then turned wet and/or cold and the Nohr-Prime that I received was not the winter mix.
By the time that the floors were fully prepped, it was November and the temperatures were in the 40s during the days and 30s at night. Despite using a large industrial natural gas heater to warm the garage during the installation and cure period, the coating didn't properly adhere to the concrete.
While large areas have bubbled, other areas are loosely connected to the concrete so they can be removed with a paint scraper or a pressure washer.
I assume that I will have to remove all of the new coating and residue and start over. What is the best approach for completing this task?
I was planning to use a pressure washer and then a grinder. Previously muriatic acid was used to etch the concrete. I assume that something more aggressive will be required to remove all residue. How much time is this likely to require?
Alternatively, how much would it likely cost to pay a professional to properly prep and recoat the surface with high quality polyurea, epoxy or polymer blend? Is it likely that I could cut my losses by having the professional simply prep the floor and try again to prime and seal the floor?
Is polyurea still the best option for the garage and apron?
Gun Shy in Chicago
By the time that the floors were fully prepped, it was November and the temperatures were in the 40s during the days and 30s at night. Despite using a large industrial natural gas heater to warm the garage during the installation and cure period, the coating didn't properly adhere to the concrete.
While large areas have bubbled, other areas are loosely connected to the concrete so they can be removed with a paint scraper or a pressure washer.
I assume that I will have to remove all of the new coating and residue and start over. What is the best approach for completing this task?
I was planning to use a pressure washer and then a grinder. Previously muriatic acid was used to etch the concrete. I assume that something more aggressive will be required to remove all residue. How much time is this likely to require?
Alternatively, how much would it likely cost to pay a professional to properly prep and recoat the surface with high quality polyurea, epoxy or polymer blend? Is it likely that I could cut my losses by having the professional simply prep the floor and try again to prime and seal the floor?
Is polyurea still the best option for the garage and apron?
Gun Shy in Chicago
