silicon rubber for sculpture mould making

Applications of RTV silicone rubber for mold making 

1. RTV Silicone Rubber for mold making can used for poly resin crafts, PU crafts, PU resin crafts ,gypsum crafts ,unsaturated resin crafts, lighting and candles crafts ,plastic toy , stationery gifts crafts industry,

2. RTV Silicone Rubber for mold making is applicable for  large statue Buddha, relievo furniture, furniture decorative materials, statues Buddha, artifacts copied, building decoration materials, large-scale cement mold,

3.  RTV Silicone Rubber for mold making is intend for artificial fossils Factory, Europe component factory, simulation landscapes, animals and plants sculpture, sandstone crafts and so on.

RTV silicone rubber features 
a) Good characteristics of easy-operation

b) Good flowability and light viscosity

c) Low shrinkage

d) No deformation

e) Favorable tension

f) Favorable hardness

g) High temperature resistance, acid and alkali-resistance and aging resistance

Frequently asked questions of  RTV silicone rubber

Why does the silicone rubber mold have few molding times? 
RTV 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.

Datesheet of tin cured RTV silicone rubber.

liquid RTV silicone rubber operations

If the customer wants to make large products and large size molds, the mold should be made of silicon rubber with high hardness. On the contrary, if the mold with fine and precision  patterns, it should be made of silicon with low hardness. The amount of the curing agent depends on the actual requirements of the customer. If molds requiring fast drying and demould, more curing agent is needed; contrarily, if molds requiring slower drying and demould, less curing agent is needed.

(Note: our company does not recommend you to add silicone oil. If a special soft silicon mold or fine detailed and complex patterns products are required, 5%-10% silicone oil can be added to soften the mold for easy demould.)

RTV silicone mold making rubber operation process:

1. Original modle process

2. Evenly Mixing the silicone rubber and the curing agent according to the mixing ratio

3.Vacuum pumping the mixed silicone rubber

4.Brushing cast & Perfusion Molding operation

Any questions of tin cured RTV silicone rubber, please feel free to contact Cassi :

TEL: 086-755-89948006

FAX: 086-755-89948030

MOBILE:086-15220073603

Website:  www(dot)szrl(dot)net

E-MAIL: hyjg(at)szrl(dot)net