Silicone rubber KDSV-25 (set of two components)
KDSV-25 is a pourable, condensation curing 2-component silicone rubber with high elasticity for replicas using cast ceramic, plaster, polyester and polyurethane resins (please use a wax release agent as a protective film with epoxy resin).
- Good flowability
- Fast vulcanisation at room temperature
- Good tear strength and tear propagation strength
Technical data:
Standard:
Mixing ratio: 100 : 2 parts by weight component A : component B
Processing time: approx. 40 minutes
Alternatives:
In order to achieve optimal results, we recommend mixing ratio 100 : 2 or 100 : 3
Processing time (100 g in a cup at 23 °C, humidity 50 %):
100 : 2 = approx. 40 minutes
100 : 3 = approx. 30 minutes
Colour: White
Dyeing: R&G Universal Color Pastes (colour differs because of the basic colour of the silicone)
Mixing viscosity: 15.000 ± 2.000 mPa·s
Shore A hardness: 25 ± 2
Tensile strength: > 4.9 N/mm²
Elongation at break: > 480 %
Tear resistance strength: > 31 N/mm
Shrinkage (after 7 days): ≤ 0.3 %
No heat of reaction occurs during vulcanization so that even larger quantities (e.g. 10 kg) can be poured without the risk of overheating.
Customer information:
The release agent Semiperm™ Monofilm in combination with PARTALL® Coverall Film PVA is suitable as a safe release agent for silicone moulds. This combination of release agents provides a barrier layer so that casting with epoxy resins is also possible without any problems. The service life (durability) of the moulds is significantly extended.
The release agent Semiperm™ Monofilm is applied with a brush. After flash-off, PARTALL® Coverall Film PVA is applied, also with a brush or sponge. For more information on processing, see the release agents.
PARTALL® Coverall Film PVA is transferred to the casting, washed off with water after demolding and reapplied before each impression.
New: We now supply our packages (up to 5.2 kg) with a dispensing pipette.*
* In general, we recommend a dispensing pipette for exact dosing of smaller quantities, and a dosing syringe for a little larger quantities. Mixing vessels with smooth walls and smooth bottoms are particularly suitable for mixing.
Shore-Hardness and processing information
MSDS Silicone rubber KDSV-25 (comp.A) (PDF)
