M4644 Food Grade Translucent Silicone Rubber (550g)
M4644 is a high performance silicone mould-making compound that is suitable for reproducing models with undercuts in polyurethane or epoxy resins. Imported from Barnes Australia.
M4644 is also a Food Grade Silicone Rubber
Recommended for: Food Grade, Concrete, Plaster, Epoxy, Polyurethane
Potlife / Work time: 90 mins
Demould time: 12 hrs
Hardness & Type: Shore A40 +/-2 Silicone Elastomer, 50000cps
Pourable, addition-curing, two component silicone rubber that cures at room temperature.
- Good Flow
- Medium Shore A Hardness (approx 40)
- Fast non-shrink cure which can be accelerated considerably by the application of heat
- Good transparency of the cured rubber
- High tear strength
- Outstanding resistance to casting resins, particularly polyurethanes and epoxies
Please take note that all silicone rubbers may be subject to cure inhibition by contaminants on the surface of the master, or the material of the master being used for mould making. If your silicone rubber does not cure, there could be a chance that your master is reacting with the silicone rubber.
Materials that may inhibit the curing of platinum silicones are: Sulphur-based clay, tin-cured silicone rubber, latex rubber, some paint products, some 3D-printed plastic materials, etc.
Uncured rubber can be difficult to remove from your masters and may stain them. We recommend performing a small test on your master before making your actual mould.
Technical Data Sheets