Product Overview Scl-off 4000 is a platinum catalyst used to accelerate the curing of silicone release coatings. It is a clear, straw-colored liquid with a viscosity of 400 cSt at 25°C. The SCL-OFF 4000 is compatible with all SCL-OFF brands of solvent-based and solvent-free release agents as well as platinum-cured silicone PSA. Physical and chemical...