The new premium Dulux Gripper formula is designed to meet the toughest interior and exterior primer requirements. Dulux Gripper is especially designed to block most stains - water, smoke, ink, markers, and tannin. Dulux Gripper also has outstanding adhesion to glossy surfaces. It is also fast drying as you are able to top-coat in as little as one hour.   Ideal For: Interior and exterior painted wood, plaster, drywall, concrete, stucco, brick and glossy surfaces (aged alkyds, laminates)   Description Source: Dulux Technical Datasheet