Click image to view original image
RTV-2 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 RTV-2 Silicone Rubber for Stone Mold Making
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 RTV-2 Silicone Rubber for Stone Mold Making
RTV2066&RTV2088 silicone rubber is especially suited for reproduction of middle size cement molds, concrete stones, and artificial stones. Etc...
Technical datasheet of RTV-2 Silicone Rubber for Stone Mold Making
Base and Curing Agent Mixture (100:2 by weight) in 25 ℃ (77F) testing
|
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% |
|
Methods of molding |
Brushing/Pouring |
