A3 Multibond is an MS Polymer® adhesive sealant which hardens by reaction with air humidity. It is free from solvents, isocyanates and silicones. Once polymerized it is tenacious and elastic. Allows for a longer processing time (LOT Long Open Time). A3 Multibond is used for external sealing and in particular for bonding walls, verandas, satellite dishes and solar panels. A3 Multibond is odorless and has excellent resistance to atmospheric agents and UV rays.