S391 is a single-part permanently soft and flexible sealing/insulating compound for use in the following applications:
• General purpose sealing
• Blocking and filling electrical components e.g. Cables, Chokes, Junction boxes, Couplers, Glands, Switchgear, Light ballasts, Transformers.
Colour: Black
Viscosity: Non-sagging putty soft & easy to mould
Exotherm: No heat development
Specific gravity: 1,7 - 1,8 g/cm3
Hardness:
Heat distortion temperature: -20°C - 85°C
(ASTM D648 - 56)
Chemical resistance: Resistant to oils, detergents, grease, water, caustic sodas, petrol, alcohols, mild acids.