Silicone RTV for Plaster Mold Making

Silicone rtv for mold making applications

silicone rtv for mold making is primarily intended for poly resin crafts,PU crafts,PU resin crafts ,gypsum crafts ,unsaturated resin crafts, lighting and candles crafts ,plastic toy , stationery gifts crafts industry, a large statue Buddha, relievo furniture, furniture decorative materials, statues Buddha, artifacts copied, building decoration materials, large-scale cement mold, artificial fossils Factory,Europe component factory, simulation landscapes, animals and plants sculpture, sandstone crafts and so on.

Silicone rtv for mold making features

silicone rtv for mold making is white or red flowing liquid with general hardness of 22-50A°after curing. silicone rtv for mold making is a kind elastic silicon rubber mold which features with resistance to deformation, high-temperature, acid-alkali and expansion as well as high reproduction times, good tensile strength ,tear strength and elongation.

 
Operation of silicone rtv for mold making

1. deal with original moulds

2. brush on release agent

3. correct weigh accoring to mixng ratio

4. stir the two component evenly

5. vacuum-pumping

6. pouring

Frequently asked questions of silicone rtv for mold making

Why does the silicone rubber mold have few molding times?

The silicone rtv for mold making 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.

During operate of silicone rtv for mold making the three impotant thing to pay attention :
  1. weigh the liquid silicone rubber and curing agent exatly .
  2. Stir the liquid silcone rubber and curing agent evenly .
  3.we shouldchoose the right hardness to making diffirent size of product mold.