Nasty but effective.
Stuff worx fast. Smells like Muriatic acid. Sat in my laundry room over a month. Must've spilled some during shipping. Half a pint was in the plastic bag it was sealed in. I'm impressed it didn't burn through to my floor. Be careful how you store it once you receive it. The label had turned black completely. Make sure your eyes and skin are protected when handling this product.
Rating: 5 stars