Zinsser Cover Stain Aerosol Spray 400mlB I N Aerosol is great for priming interior surfaces and spot priming exterior surfaces. It is formulated to seal, prime and block out stains on previously painted or new work and dries in minutes. It effectively blocks every kind of odour and can be used in areas where incidental contact to food items occurs. B I N Aerosol works brilliantly on interior projects such as ceilings, walls, doors and related paintable surfaces. Exterior uses include spot