Mark, you can use it on concrete, the problem is that the caustics destroy asphalt. I don’t have anything that is as cost effective as this chemical is. If the concentration is right you can play safe.
My own chemicals are proprietary to my business. I wish I could help; I had to formulate my own in order to bring the costs down.
99% of the contractors use these products on concrete but hands full use them safely.
Call me again and I might be able to help you with a place to purchase and alternative. 602-694-2680 some of the distributors would also be glad to help but you need to ask in there sections. They cannot answer in this forum. (RULEs)
