A smooth, easy-working putty designed for the special needs of professional painters. It is ideal for filling small holes and cracks in interior or exterior surfaces such as baseboards, window sills, wood siding, and woodwork. It has exceptional adhesion and resists oil bleeding. May also be used to glaze wooden window sashes. Exceptional paint ability. Must be primed with an oil based primer before painting with latex-based paint. For interior and exterior use.