New Graphite Powder west System 423 12 oz. : A very fine black powder which can be mixed with WEST SYSTEM epoxy to produce a low friction exterior coating surface. Increases scuff resistance and durability. Mixture is also used on rudders centerboards and racing craft bottoms that are dry sailed. Is not an antifoulant. Provides a mar resistant surface. Mixture can be used on teak deck construction to simulate traditional caulking and to protect resin from sunlight. Add up to 10% by volume or 8 fl. oz. of epoxy.