HIDZ is a multi-purpose interior and exterior water-base primer that's great for most surfaces. It is ideal for hiding previous colors and sealing porous surfaces. HIDZ blocks common stains like crayon and oily handprints and has great adhesion in a fast drying formulation. HIDZ is ideal for remodeling especially where transitions of new and existing work meet. Its easy flow properties make it great for brush, roll or spray application.