Pirelli R391 Weatherproof Compound

Protects electrical connections from moisture and corrosive vapours and is widely used in a variety of electrical applications including work on junction and conduit boxes. 

It possesses good insulating properties and helps to prevent short circuits due to dampness.

It is non-hardening and does not shrink, crack or peel thereby allowing the compound to be readily removed and replaced safelt by hand.

Specification

Specific gravity at 15.5°C	1.70
Flash point	+ 210°C
Operating temperature	- 20°C to + 80°C
Working range	1000 volts max.
Volume resistivity at 20°C	8 x 10 ohm-m