Description of Stone Mold Making Silicone Rubber
Stone Mold Making Silicone Rubber is a two-component material, this kind of silicone rubber consists of Part A base silicone and Part B CA30 curing agent, and Part A base silicone and Part B curing agent can cure at room temperature by a condensation reaction. These materials can be cast into the cured silicone molds: plaster polyurethane, PU, GRC, cement, resin, polyester, wax etc...
Features of Stone Mold Making Silicone Rubber
1. Good flowability and long working time
2. Medium hardness
3. High tear and tensile strength
4. Easy de-mould from complex replica parts
5. Acid and alkali-resistance
6. Low linear shrinkage
Applications of Stone Mold Making Silicone Rubber
RTV2066/2088 silicone rubber are especially suitable for stone mold making.
Item No. RTV 2066
Color off-white
Curing agent CA30
Mixing ratio 100:2
Mixed viscosity 25000-26000 cps
Pot life 20-30 mins
Curing time 2-3 Hours
Hardness 28-30 Shore A
Tear Strength 27 N/mm
Tensile Strength ≥3.8 Mpa
Relative density 1.09-1.15 g/cm3
Shrinkage ≤0.3%
Elongation at break 420% |
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