
KAPRA silicone rubber W22
All prices incl. VAT, plus shipping costs.
For deliveries to countries other than Germany
the final prices may change in the checkout.
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Available items go immediately to shipping - free postage from 150 € in Germany for most items - 60 days return policy!
All prices incl. VAT, plus shipping costs.
For deliveries to countries other than Germany
the final prices may change in the checkout.
MORE INFO
Two-component silicone with polycondensation crosslinking. Component A for KAPRA silicone curing agent for silicone rubber W22 (component B). For detailed moulding. For moulding and filling. Good quality, excellent price-performance ratio.
Please remember to order the KAPRA silicone curing agent for silicone rubber W22 (component B) separately!
For the production of flexible moulds. Can be poured or levelled by adding thixotropic agent RTV-3011 (silicone thickener). Recommended for casting plaster, wax, polyester casting resin or polyurethane casting resin. Depending on the type of casting compound, a different number of pours is possible.
Application:
Stir silicone compound well before use. Carefully mix KAPRA silicone rubber W22 (component A) with KAPRA silicone crosslinker W22 (component B) in a weight ratio of 100:5. Always measure exact proportions, preferably using a digital scale. The curing time can be shortened if necessary by adding a higher proportion of silicone crosslinker. At a lower room temperature, the curing time mentioned below is extended (at approx. 4 - 5 degrees less, the curing time is approx. 4 - 5 times longer). To shorten the curing time again, more crosslinker can also be added if necessary (up to approx. 7.5 %). The silicone can be thickened by adding thixotropic agent and then levelled.
Before taking the impression, clean the surface of the object to be moulded and, if necessary, pre-treat with a release agent depending on the surface. If the object is moulded with silicone, pour slowly so that no bubbles form. Otherwise, apply the (thickened) silicone in several thin layers. Do not apply the next layer until the previous layer has dried enough to leave a fingerprint. For thicker layers, add thixotropic agent.
Technical data for KAPRA silicone rubber W22 with KAPRA silicone curing agent for silicone rubber W22:
Colour: white
Mixing ratio: 100:5 (by weight, component A:component B)
Demoulding time: 6 - 9 hours (at 23° C room temperature)
Pot life: 60 minutes (at 23° C room temperature)
Linear shrinkage: < 0.25 %
Hardness: 25 Shore A
Elongation at break: 420 %
Tensile strength: 4.3 kN/m
Tear strength: 20 kN/m
Relative density: 1.08 g/cm3
Viscosity: 19.000 - 25,000 mPas
Classification according to Regulation (EC) No. 1272/2008: The product is not classified as hazardous according to the GHS/CLP guidelines and does not require labelling.
Please note that the crosslinker must be ordered separately.