Shoe Sole Mould Silicone Rubber Molding Material

Where to buy silicone rubber molding material for shoe sole mould
shoe sole molding silicone
1.description
gc rtv silicone c-825 are good for shoe sole molding products. They are widely used for manual mold making, shoes molds, plaster models, sole sampling, sand casting, etc.
2. Technical datasheet
typical general characteristics  inspection method value
product data (catalyzed a+b) c-820 c-825 c830
hardness shore a 20±2 25±2 30±2
mix ratio a:b 100:3 100:3 100:3
color white white white
pot life 25 °c (77f) 30-40mins 30-40mins 30-40mins
curing time 25 °c (77f) 3-4 hours 3-4 hours 3-4 hours
mixed viscosity mpa.s 16000±1000 20000±1000 23000±1000
tear-strength kgcm 20±2 22±2 23±2
tensile-strength m.pa 3.6±0.5 4.0±0.5 5.0±0.5
elongation % 400±50 450±50 460±50
shrinkage % â‰Â¤0.3 â‰Â¤0.3 â‰Â¤0.3
note: this is a 100a:3b mix ratio product that must be measured by weight. The choosing of suitable hardness should be according to the size and pattern design of the products. If large products and therefore multiple-piece molds are needed by customers, silicone rubber with higher hardness will be required for the molds. Conversely, soft silicon is indispensable for molds with complicated pattern and delicate details. The amount of curing agent admixture depends on the actual need of customers. More will be added for speedy drying and fast release and less when otherwise.
3. Features
1.low viscosity
2.great flexibility
3.extra low shrinkage
4.chemical resistance
5.release properties
6.easy to work with
4.high tear strength
5.heat resistance
6.various color is available
7.high reproduction rate