The HB Fuller Caulk In Colours 450 gram acrylic sealant in black colour, is formulated for sealing joints in residential works. Paintable sealant dries clear and offers great resistance to moulds, mildew, water and UV. It adheres to most substrates and can be cleaned easily with water. Flexible sealant offers a joint movement capability of +/-20% and conforms to horizontal as well as vertical surfaces.The skinning time of the sealant is 20 minutes and the curing time is 3 to 7 days. The coverage area of the sealant is 15 meter for a 5 mm bead.