Blackseal butyl rubber bonding mastic BT - 540g - Sika

Sika Blackseal butyl rubber adhesive sealant BT - 540g, a product suitable for caulking, bonding and repair applications in roofs, walls and other building elements. A simple application that does not require a primary. The product can also be applied on a wet substrate. Tips: SUPPORT The substrate must be clean, dry, sound and homogeneous, free from oils, grease, dust and loose or friable particles. Paint, cement laitance and other loosely adhering elements should be removed. APPLICATION Sika BlackSeal BT is supplied ready to use. Install a cartridge into the putty gun and extrude Sika BlackSeal BT into the seal or glue holder. For lap joints, apply a sufficient amount of Sika BlackSeal BT to bridge the gap, then press the supports together as long as they are still tacky, keeping a 2mm sealant film. When using glue, press the supports against each other, separate them and wait for 10 minutes approx. until Sika BlackSeal BT forms its skin, then press the supports against each other again. Use Sika products with care. Before use, please consult the manufacturer's product leaflet available on the sika.fr website.