Zhermack silicone rubber ZA TT 1240 Shore 12
Zhermack
Zhermack silicone rubber ZA TT 1240 Shore hardness 12
Addition-curing 2-component silicone rubber that vulcanizes at room temperature (RTV).
Being remarkably fluid, it is suitable for duplicating models with small undercuts.
Compatibility extends to all plasters, waxes, polyurethane and acrylic plastics.
properties and application
• High chemical resistance to aggressive components of some types of resin
• High tear resistance
• High level of fidelity in very small details
• High dimensional stability over a long period of time
• Remarkable resistance to high temperatures and to aging
• Outstanding non-stick effect
Main areas of application
• Manufacture of molds and models because of the remarkable precision in reproduction, high dimensional stability and high mechanical strength
• Art ceramics because of the high dimensional stability, the remarkable fluidity and the good mechanical strength
• Manufacture of molds for concrete casting
More product information
Colour: A orange and B white
Mixture: 1:1 by weight
Specific gravity: 1.20
Viscosity: 5500 mPas
Mixing time at 23 degrees Celsius 1 minute
Processing time at 23 degrees Celsius 40 minutes
Curing time at 23 degrees Celsius 180 minutes
Shore A hardness after 24 hours 12 ± 2
Breaking load: 2.6 ±0.2 N/mm²
Elongation at break: 550%
Tensile strength: (Die B) 17.0 ±1.0 N/mm²
Reproduction Detail: 2 microns
Dimensional change after 24 hours: 0.02%
Mixing time at 23 degrees Celsius: | 1 min |
Mixing ratio: | 1:1 |
Product type: | silicone |
Dimension change in % after 24h: | 0.02 |
Shore hardness: | A12 |
Elongation at break (in %): | 550 |
Colour: | orange |
Viscosity: | 5500 mPas |
specific weight: | 1.2 |
Processing time at 23 degrees Celsius: | 40 mins |
Curing time at 23 degrees Celsius: | 180 mins |
breaking load: | 2.6N/mm2 |
tear strength: | 17.0 N/mm2 |
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