tommya said:
What does the acid wash do to the blacktop as it's washed out of the garage?
I had the same concern when I did my garage over labor day weekend. A couple of things. #1 - You use the acid diluted with water starting with something like 10:1 and mix stronger until you get a mix that fizzes on the concrete surface. #2 - You rinse a few of times with a lot of water each time. By the time the acid solution gets to the asphalt it is has a concentration well below 100:1.
tommya said:
I found Armorseal 1000 on the SW website but do they have retail stores?
They do have retail stores. Here's the link:
SW Store Locator
Even if the Armorseal 1000 is available in your area, the store may not sell it to you unless you are a professional painter or have some other sort of contractor's license. Regulations on solvent based paints and coatings are getting pretty strict - especially in states that have tough air quality laws like CA, NY, MA, and the states that surround them.
I did two coats of Rust Oleum EpoxyShield Pro in Tile Red with one coat of their premium clear coating. The floor has been down for a little over two months and driven on daily for 5 weeks with no hot tire pick up to date.
Good luck.