TEROSON MS 939NA is a gray, 1-part, low modulus, flexible, odorless modified silane polymer adhesive used for elastic sealing. It cures to an elastomeric thermoset product resistant to UV. It is sag-resistant leading to high initial tack. It is non-corrosive and free of solvents, isocyanates, silicones and PVC. Perfect for use glass, aluminum, steel, stainless steel, and polycarbonate. Used as an alternative caulk for Morgan and Supreme truck bodies and their corner caps.