I found ALK-201 listed on O'Reilly's web site. I doubt that most local stores would stock it, but the listing on their website indicates they could get it for you. I think it was in the $75/quart range.
Mike, I saw that the tech sheet says that using the hardener delays dry time (by quite a bit). Has that been your experience or is that a glitch in the tech sheet. It seems backwards to me, but I have no basis for that opinion. If true it makes me lean against using hardener.
