This Zinsser Primer-Sealer Stain Killer is a shellac-based primer sealer designed to conceal even the toughest of stains. It can be used on interior surfaces or for spot-priming of exterior surfaces, offering unparalleled adhesion on any surface - even glass - without the need to sand before. Its effectiveness lies in its high-adhesion shellac formula, which seals porous surfaces with superb enamel holdout, and can also seal bleeding knots and sap streaks, too.

The B-I-N® formula dries in a mere 15 minutes and blocks all types of odours (including smoke/fire damage, pets and nicotine) and can even be used where incidental contact with food may occur. It is ideal for water stains, oil stains, marker pen stains, fungal degradation nicotine and more.

Applications for this product includes: Interior ceilings, walls, doors and related paintable surfaces and spot priming on exterior metal, trims, PVC and wood.

Key Features

• Effectively blocks odours
• Tintable to mid-tone colours
• For interior and spot exterior use
• Can be applied in freezing temperatures
• Dried film is non-toxic and hypo-allergenic
• Dries in minutes, can be recoated in 45 minutes
• Seals porous surfaces, bleeding knots and sap streaks
• Easy application via airless sprayer, brush, roller or spray
• Superior adhesion to glossy surfaces without scuff sanding
• High-hiding formula blocks stubborn and persistent stains
• Ideal for interior surfaces and spot priming of exterior surfaces
• Works brilliantly on water stains, oil stains, fungal degradation, nicotine, etc.,

Technical Information

• Colour: White
• Volume (L): 2.5
• Touch Dry (mins): 15
• Full cure (days): 1 - 3
• Recoatable (mins): 45
• Coverage (m²): 12.5 per litre

To learn how to identify the different types of mould, please refer to our Identifying & Understanding Mould guide.