A solvent and isocyanate free sealant that cures by reacting with atmospheric moisture to give a tough and durable elastic seal. High bond strength with good initial grab, chemically resistant to salt and drinking water, mineral oils, gases and fuels. Neutral cure, non-corrosive and non-staining. UV and weather resistant, with good electrical resistance. Used for bonding and sealing in caravan and vehicle production and repair, protecting welded joints and seams in automotive and metal applications, sealing and bonding of panels and cladding, expansion joints and most applications requiring high-performance, durable sealing and bonding.