Zhermack silicone rubber ZA 22 WT20 Thixo Spray Shore hardness 21

properties and application

• High chemical resistance to aggressive components of some types of resin
• Height tear strength
• 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 flowability and the good mechanical strengthsilikon-kautschuk24.de
• Manufacture of molds for concrete casting

More product information

Colour: A light blue and B white
Mixture: 1:1 by weight
specific gravity: 1.08
Mixing time at 23 degrees Celsius 1 minute
processing time at 23 degrees Celsius 21 minutes
Curing time at 23 degrees Celsius 240 minutes
hardness Shore A after 24 hours 21 ± 2
Breaking load: 3.9 ±0.2 N/mm
Elongation at break: 650%
Tensile strength : (Die B) 13.0 ±1.0 N/mm
Reproduction Detail: 2 microns
Dimensional change after 24 hours: 0.02%

Addition-vulcanizing 2-component silicone rubber that vulcanizes at room temperature ( RTV ). Because it is remarkably fluid, it is suitable for duplicating models with small undercuts. Compatibility extends to all plasters, waxes, polyurethane and acrylic resins.