M4644 is a high performance silicone mould-making compound that is suitable for reproducing models with undercuts in polyurethane or epoxy resins.
M4644 is also a Food Grade Silicone Rubber
Recommended for: Food Grade, Concrete, Plaster, Epoxy, Polyurethane
Potlife & Demould: 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