Use the following formulation: 300 Where: L = Length of sealant in metres obtained per cartridge. L = W = Width of the joint in mm W x D D = Depth of the joint in mm. A joint of 5mm width and 5mm depth yields approx. 12.0m per 300ml cartridge A joint of 4mm width and 4mm depth yields approx. 18.75m per 280ml cartridge