Zhermack silicone rubber ZA 43 PU red-brown Shore hardness 43 medium-hard

Zhermack silicone rubber ZA 43 PU red-brown Shore hardness 43 medium-hard

Zhermack

  • €104,90
    Unit price€52,45 per kg
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Zhermack silicone rubber ZA 43 PU red-brown Shore hardness 43 medium-hard Duplicating silicone base

Product information "Zhermack Silicone Rubber ZA 43 PU Shore 43"

Zhermack silicone rubber ZA 43 PU shore hardness 43

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.

Zhermack ZA 43 PU is equipped with a shore hardness 43, a silicone rubber that was specially developed for casting polyurethanes, has excellent resistance and anti-adhesion properties.
This means that the cast parts can be released very easily and higher service life of the molds compared to conventional molding or duplicating silicones.

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
• Outstanding resistance to PU casting resin and PU foam

Main areas of application

•Making 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
• Production of casting molds with PU (polyurethane) casting resin and PU (polyurethane) foam


More product information

Colour: A reddish brown and B white
Mixture: 1:1 by weight
specific gravity: 1.2
Viscosity : 13000 mPas
Mixing time at 23 degrees Celsius 1 minute
processing time at 23 degrees Celsius 18 minutes
Curing time at 23 degrees Celsius 240 minutes
hardness Shore A after 24 hours 43 ± 2
Breaking load: 4.5 ±0.2 N/mm²
Elongation at break: 310%
Tensile strength : (Die B) 6.0 ±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
Curing time at 23 degrees Celsius: 240 mins
Colour: reddish brown
breaking load: 4.5N/mm2
Shore hardness: A43
specific weight: 1.2
Viscosity: 13000 mPas
Processing time at 23 degrees Celsius: 18 mins
Elongation at break (in %): 310
tear strength: 6.0N/mm2

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