Colorfill black polymer resin joint sealant repairerthis colorfill black polymer resin joint sealant repairer is ideal use 1 tube of colorfill per joint apply a thick bead of colorfill around the leading edge of the joint to both the bottom and top of the exposed core taking care to ensure adequate sealant around the front and back edges and bolt slots quickly close the joint and allow excess sealant to squeeze out of the joint align the two sides and tighten the bolts fully excess seal