charliekap
Member
How long does it take the PR to harden? I cast a picture on Monday and left it in the silicone mold until today. It's was stored in the basement (about 60 degree temperature). Just took it out of the mold and the PR is still not hard. The ends are gummy and the surface will still easily capture my fingerprint. I used about 6 drops of hardner with approximately one once of PR.
charlie
charlie