OptiClear S2 is a nonflammable, odorless degreaser that removes light oil from optics and electronics components. OptiClear S2 is nonconductive and leaves no residue. OptiClear S2 can also be used to remove wax and pitch; however, the necessary soaking time is longer than that required for OptiClear Original. OptiClear S2 has a higher flash point than OptiClear S but evaporates more slowly than OptiClear S.