Liquid silicone for Sculpture Statues Art Mold Making

It is a kind of room temperature vulcanized silicone rubber in condensation type. It's generally named as two part silicone rubber, Part A is a flowable liquid, part B is the curing agent or catalyst. It's mainly used for all mold making with different size and pattern.

1.Why does the silicone mold appear to dry outside but wet inside?
Some molding silicone rubber is a kind of condensation cure silicone rubber, which would get solidified after absorbing moisture. While in order to provide a significant shelf-life for the silicon rubber, we will dry out the water in the silicon rubber. So when the humidness is lower than 50%, this would happen.

Solution: Add 0.1% water into the silicon rubber and Stir over a low speed briefly when you use it.

2.Why does the silicone mold get burnt out?
This consequence happens only because we have left out the important notes when using unsaturated resin materials to produce the products. The unsaturated resin produces great heat when cured. So we should demould the resin product within 3 minutes to avoid this problem.


3.Why does the silicone mold appear to dry outside but wet inside?
Some molding silicone rubber is a kind of condensation cure silicone rubber, which would get solidified after absorbing moisture. While in order to provide a significant shelf-life for the silicon rubber, we will dry out the water in the silicon rubber. So when the humidness is lower than 50%, this would happen.

Solution: Add 0.1% water into the silicon rubber and Stir over a low speed briefly when you use it.


4.Why the silicone mould turns to be sticky?
The main reason for this problem is that we do not handle the products or original molds well.
We should deal with the mother mould carefully before molding. Such as for the products with a complicated
pattern or a unsmoothed surface, we should polish and clean the products, then spray the release agent. Normally, the release agent can be Vaseline, detergent. liquid wax Etc. In practical process, you can brush different release agent according to different material.

The second reason is that the operator pour the silicone into the mold when the mixture is not mixed evenly, so the finished silicone mold will not cured and dried entirely.