Mould-making silicones
Silicones for flexible moulds, detailed reproduction and casting copies in resin, wax or other materials according to the product. The range includes condensation- and addition-cure systems plus specialist applications.
What to consider when choosing
Moulds for decorative parts and detailed patterns
Elastosil M 4511 and M 4541 cover different casting materials, including resin, wax and concrete; choose the catalyst according to the reproduction material. M 4601 focuses on detail and dimensional reproduction. ZA RTV 20-45 YELLOW makes flexible moulds for undercut patterns; translucent M 4600 allows a one-piece mould opened by cutting.
Body casting and counter-moulds
ZA 22 Thixo Body is described for reproducing faces, hands and feet: this is specific to that product. FenForm is supplied uncured for bladders or counter-moulds in vacuum or pressure composite processing and requires oven curing under pressure; it is not a conventional casting silicone.
Choosing the silicone and casting material
For clear parts, browse epoxy casting resins or polyester casting resins. Select hardness, detail and demoulding method alongside the resin. Check the technical data sheet for model compatibility and possible cure inhibition before making the mould. The catalogue also includes a thickening additive for ELASTOSIL M condensation-cure silicones.
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