Silicone rubber (RTV-2) for plaster/gypsum molds making

Ms.Shirley Zheng

Thank you for your attention.

The infomration just for reference,need more information about RTV silicone rubber for mold making,please feel free to contact with Ms. Shirley at the number of 0086-755-89948006 and the mobile 0086-15220170905

The silicone rubber mold has few molding times is due to follwoing reasons: adding too much silicone oil which will destroy the molecular of silicone rubber; making the mold for small and fine detailed products with higher hardness silicone rubber which is easy to break; making the mold for large products with soft silicone rubber which will reduce the tensile and tear strength of the mold, and the mold will have deformation. Thus, we should take the proper silicone rubber to make the mold for suitable products. 

Why does the silicone rubber mold have few molding times?

Frequently asked questions of Silicone rubber (RTV-2)  molds making application

4. Adding curing agent 4%, the silicone can still be operated within 10 - 15 minutes and can
     be demoulded after 1 -1.5 hours.

3. Adding curing agent 3%, the silicone can still be operated within 28 - 30 minutes and can
     be demoulded after 1.5-2 hours.

2. Adding curing agent 2%, the silicone can still be operated within 50 minutes to 1 hour and
     can be demoulded after 2-3 hours.

1. Adding curing agent 1%, the silicone can still be operated within 2.5 hours and can be  
    demoulded after 6-8 hours.

Silicone rubber (RTV-2)  molds making application:
Silicone RTV (HY-638 ) is two parts condensation liquid silicone rubber that can be cure under room temperature. silicone rubber mainly used for the manufacturer of products made of unsaturated resin, epoxy resin, polyurethane, etc.

Silicone rubber (RTV-2)  molds making application features:
HY-638# silicone rubber is mainly with the advantages of good tensile strength, high tear strength, high temperature resistance, high duplication times and repeated use, etc. silicone rubber(HY-638) is the most suitable for small products or fine and precision products which is difficult to demould. This silicone rubber is one of the products with the highest use level in the production of craftwork gifts and the shrinkage less than 0.2%.

Silicone rubber (RTV-2)  molds making application instruction:

Silicone rubber (RTV-2) for plaster/gypsum molds making with excellent fluidity, high tensile, tear-strength