This weekend I went to open my last 2.5 gal of Epolite hardner ... and it was all hard. It had turned into a solid block. So, do I need to also toss the 5 gal of resin, on the assumption that if one went bad the other is useless too? Or am I lucky enough that I can just get some hardner? What is the situation with getting Epolite or another replacement now? Thanks much for the help, David