03-12-2010, 10:18 AM
What you're doing,Jase - is what is supposed to be done. Keep those moulds lubricated. One member of one of these forums said that he does this every three months,and he keeps them away from light - both artificial as well as natural light sources as this degrades the urethane, platinum,and tin based silicone materials. My experience with RTV is that you want to keep this lubed at least once a month for soft silicone, as it has a tendency to shrink until hardened if you don't. Also,don't leave moulds on top of each other - the weight will distort them! If you have a two part mould,spray them with silicone release agent,then wrap them with Saran wrap and lay them side by side in a cool dark place. One part moulds are OK,but don't lay anything on top of them either,just to be safe.