We demonstrate creating a silicone rubber mold and then the casting of parts with repro epoxy casting resins and polyurethane elastomers.
Silicone rubber how to make silicone molds.
Silicone rubber is recommended for large molds.
Their intended purpose was to help complete beginner.
Check out this video for how to create simple one piece silicone rubber molds.
Wood must be sealed to prevent the rubber from soaking into pores holes.
Even after curing silicone is still relatively elastic.
Let us assume that you want to make a silicone mold with the help of a wooden frame i e.
From epoxy resins for your boat to cured silicone aeromarine is your go to source for an array of projects.
This mold making tutorial video shows how to make a two piece silicone block mold using mold star 15.
My other two silicone making videos are incredibly long and i ramble on and on about every little thing.
This technique is ideal for smaller projects less than 12 x 12 this is the easiest process for creating parts patterns tools molds.
To make a silicone mold you first need silicone rubber as a material.
Generic store bought silicone will quickly and decompose and fail to stand the test of time but the food safe silicone mold making rubber from aeromarine is a cut about the rest.
Work with a master mold.
Seal with a few layers of fast drying acrylic clear coat.
This soft and fast curing basic material can be purchased without any problems from the appropriate specialist dealer.
Other materials required for making your own silicone mold.
The finished mold can be used for casting resin wax f.
My only concern would be making sure the rubber is mixed thoroughly which can be difficult in large volumes.