The Vallejo Premium Color Sepia is a water based acrylic colour which is made of permanent pigments and hybrid for airbrushing and optimum adherence optimum adherence on surfaces such as fiberglass, polyethylene, polycarbonate, metal and Lexan. It delivers durable performance and ensures the constant flow of painting without drying. It is perfect for painting motorcycle helmets, fuel tanks, surfboards and similar surfaces exposed to hard-wear and resists impacts and cracking as well as direct exposure to heat.