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ELASTOSIL® M 4600 A/B US
Pourable, addition-curing, two-component silicone rubber that vulcanizes at room temperature.
Eigenschaften
- Very good flow
- Fast and non-shrink cure at room temperature which can be accelerated considerably by the application of heat
- Soft (Shore A approx. 20)
- High tear strength with unique knotty tear characteristics
- Excellent long-term stability of the mechanical properties of the vulcanizate
- Great resistance to common casting resins
Datenblätter
Due to the outstanding resistance to casting resins as well as the superior mechanical properties, ELASTOSIL® M 4600 A/B US is especially suitable for all molds of models with extensive undercuts that are to be reproduced in casting resins.
In addition to the low hardness, which facilitates demolding, ELASTOSIL® M 4600 A/B US has the advantage of being transparent. This makes it possible to cut one-part molds under visual control along a parting line which has been established before or is determined by the shape of the model, a method which often saves making a two- or multi-part mold.
As a low-Shore addition-curing RTV-2 silicone rubber that cures without undergoing dimensional shrinkage, ELASTOSIL® M 4600 A/B US is also extremely suitable for casting all other common reproduction materials, particularly if absolutely accurate copies of models with pronounced undercuts are required.
Important
The platinum catalyst is contained in component B.
Caution
Only components A and B with the same lot number may be processed together!
To ensure optimum flow of the material, the components must be stirred thoroughly before they are removed or processed in their containers.
The tables to the right indicate the pot lives and curing times at various temperatures.
The pot life figures indicate the time required for the mix to reach a viscosity of 60 000 mPa s.
The curing times apply to a layer thickness of 1 cm. Thin-walled molds are best suited for casting lowmelting metal alloys (melting point: 300 °C max.) and should be placed on a sheet of aluminum or other material with high thermal conductivity.
Before the casting process, the mold should be postcured for a few hours at about 150 °C. In order to improve wetting by the molten metal, a thin layer of extremely fine silicone carbide, graphite powder or acetylene black should be applied to the mold surface. The first castings normally have to be discarded since the rubber still emits gases, giving the surface of the casting a pockmarked appearance.
Lagerung
The "Best use before end date" of each batch is shown on the Certificate of Analysis. Storage beyond the date specified on the Certificate of Analysis does not necessarily mean that the product is no longer usable. In this case however, the properties required for the intended use must be checked for quality assurance reasons.
Vertrieb & Support
34750 Ataşehir / Istanbul
Türkiye
+90 216 569-8210 (Fax)
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