Platinum cure silicone rubber to make molds

How to make mold with Platinum cure silicone ?

Operation Instructions
1: Prepare the desired molds
Prepare a desired mold and clean it before operation.
Notes: Make sure the desired molds and operation tools were cleaned up to avoid uncured problem.
( Suggest to use stainless steel or wooden material mixer. )
2: Take amount Part A :100 g / Part B :100 g ( or Part A : 100 g and Part B :10 g ) and mix evenly.
* Weigh the two part exactly by electronic weight. If any part not in exactly weight, it may cause changing of hardness, or even cause uncured problem.
* Mix part A and part B evenly.
3: Vacuum the mixed material
This step must less than 10 minutes. Otherwise, it will cause cross linking reaction, might cure too fast.
4: Pouring casting
* For simple mold, just to pour the vacuumed material into mold, cured will be 8-12 hours.
* For fine designed mold, to brush the liquid silicone on mold surface then pour the silicone into mold. This will make the casing properly.