China RTV-2 Silicone Rubber for Stone Products Mold Making

Features of RTV silicone rubber for mold making
A. Good characteristics of easy-operation
B. Light viscosity and good flowability
C. Favorable tension
D. Low shrinkage
E. No deformation
F. High temperaure resistance, acid and alkali-resistance and ageing resistance
Application RTV silicon rubber for mold making
Molding silicone rubber is suitatble for Product duplication and mold manufacture such as
1. Toys, gifts
2. Decoration, plate engrave
3. Human replica, art crafts,
4. Resin crafts, unsaturated resin crafts
5. Poly resin crafts, candle crafts, plastic crafts
6. Stationeries, plaster crafts, Bunddhist statue crafts, etc.
FOQ of RTV silicone rubber for mold making
1. Why does the silicone rubber mold have few molding times?
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.
2. Why does the mold made of silicone rubber have an unsmooth surface with tracks and strips on it?
It is due to product or model to be molded should hasn't been sanded or polished. If the mold or product is not sanded or polished, the mold made of whatever quality silicone rubber will not be good and smooth enough since the mold or the product itself is not smooth or perfect. Another case is that uneven brushing of the release agent will also bring about unsmoothness of the mold.
Any question abt RTV silicone rubber for mold making pls free to ask us.