This mold making tutorial video shows how to make a two piece silicone block mold using mold star 15.
Silicone rubber how to make silicone molds.
My only concern would be making sure the rubber is mixed thoroughly which can be difficult in large volumes.
To make a silicone mold you first need silicone rubber as a material.
The hardness of silicone rubber.
Which materials you need depends of course on your project and the type of mold production.
This soft and fast curing basic material can be purchased without any problems from the appropriate specialist dealer.
This technique is ideal for smaller projects less than 12 x 12 this is the easiest process for creating parts patterns tools molds.
Check out this video for how to create simple one piece silicone rubber molds.
Other materials required for making your own silicone mold.
We demonstrate creating a silicone rubber mold and then the casting of parts with repro epoxy casting resins and polyurethane elastomers.
To make such a silicone mold you generally need the following materials.
Even after curing silicone is still relatively elastic.
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.
From epoxy resins for your boat to cured silicone aeromarine is your go to source for an array of projects.
Silicone rubber is recommended for large molds.
Let us assume that you want to make a silicone mold with the help of a wooden frame i e.
Wood must be sealed to prevent the rubber from soaking into pores holes.
The finished mold can be used for casting resin wax f.
Seal with a few layers of fast drying acrylic clear coat.