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Sale price$245.92 Regular price$307.40incl GST
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Zhermack Silicone Rubber ZA RTV 20-45 is Addition-curing 2-component silicone rubber that vulcanizes at room temperature (RTV).

Features and Application:

- Easy processing
- Problem-free mixing of the components 1:1 by weight
- Very good flowability, mixture is easy to pour
- Crosslinking to form elastic, rubber-elastic vulcanizate without heat of reaction
- Temporarily temperature resistant up to 150°C
- High tear resistance and high flexibility
- Very high level of detail in the reproduction
- Excellent non-stick effect for easier release of the models
- Use with larger, self-supporting forms for impressions of all kinds

More product information:

Colour: Yellow (component A) and White (component B)
Mixture: 1:1 by weight
Specific gravity: 1.1
Viscosity: 4500 ± 300 mPas
Mixing time at 23 degrees Celsius: 1 minute
Processing time (pot life) at 23 degrees Celsius: 50 minutes
Curing time at 23 degrees Celsius: 240 minutes
Hardness Shore A after 24 hours: 20 ± 2
Breaking load: 4.5 ± 0.2 N/mm²
Elongation at break: 600 ± 20%
Tear strength: 15 ± 1 N/mm²

Zhermack Silicone Rubber ZA RTV 20-45 is very well suited for the production of demanding, elastic and durable shapes with extensive undercuts.

With Zhermack silicone rubber ZA RTV 20-45 one-piece or multi-piece molds can be produced,
for molding original models made of wood, glass, metal, plastic, wax, ceramic casting compounds.

You can use all water-soluble casting materials such as relief casting compounds such as TFC Xyrarock or Zhermack Elite Rock, Keramin, TFC alabaster plaster, modeling and model building plaster, casting stone, cement, concrete, etc. to cast in the molds that have been produced.

Also soap casting compounds (soap glycerin) for holding your own soap
or waxes for the production of candles are possible without any problems as well as casting with casting resins (resin).

You should pre-treat the mold with a release agent before pouring,
since casting resins can lead to embrittlement of the mold after repeated casting.

In general, the silicone ZA 2045 has a very long service life.

TOP quality, you will be amazed!
The silicone is brand new and can be stored for at least one year, NEW!

Click here for Product Brochure

Click here for MSDS (BASE)

Click here for MSDS (CATALYST)

Please hit here If you need Casting Box for Silicone Mould Making Casting.


Customer Reviews

Based on 1 review
S (Auckland, New Zealand)
Wonderful stuff

Made a bit robust mould for soap making. Worked perfectly. This stuff is great. Very strong and easy to use.

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