I was wondering if you saw the video where it worked lol. It did get harder even after several days, it appears to be a pretty tough patch at this point.
Soooo lol, the third time with the new kit, I made sure I mixed it exactly, I kept it at 120 degrees and I had it like that for like 3 days, it just seemed to finally harden up. The first day it was still pretty soft, but it just seemed to get harder over the following days. Hope that helps.
