Sponge Rubber Sheet — CR Closed Cell, 40 Shore C

Sponge-03, closed-cell CR (neoprene), 40 Shore C, density 0.2 g/cm³, rated -40°C to +95°C. Black. Closed cell means it will not wick water — the grade to use for weather seals and anywhere moisture ingress matters. Sold by the square metre. Minimum order 200 kg or one full roll, whichever comes first.