Primer: black adhesive which is omposed of butyl rubber, resin, antiager,antioxidant, it is coated on the cleaned pipe steel surface 1) Solid content: 19% 2) Density: 0.79 3) Color: black 4) Flash point: +10 - +50??, -12 - +10?? 5) Viscosity (time for flow over 4mm nozzle): 10 to 20 seconds Inner packing: Iron can