Depending on the size of your boat you may need more than one. Boats less than 26' have to have at least one B-1 fire extinguisher on board. Boats 26'-40' need to have at least two B-1 fire extinguishers on board.
Graphite is an electric conductor, consequently, useful in such applications as arc lamp electrodes. It can conduct electricity due to the vast electron delocalization within the carbon layers (a phenomenon called aromaticity).
The present invention is a thermally expandable composition for use in actuators comprising about 10-50 weight percent graphite particles dispersed in a wax or polymer. The composition has a thermal conductivity of at least 0.2 watts/(meterÂ°C) at ambient temperatures. Ambient temperatures refer to temperatures in the range 22-28Â°C.