Thanks a bunch. I'll be glad to get past this part of the process and on with building a model. Molds are a work out but once you have them it's great.
Tomorrow I'll remove the molds from the mounting boards while keeping the masters inside. They are only tacked to the boards and will break away easily. Then I water base clay the around the edges of the molds. Brush in a bit of silicone and back it with more tool stone or Ultracal 30.
I should then be able to start pouring parts this Wed. The spec sheet says the strength of the silicone is best after 72 hours.
Steve