Zinsser B-I-N Primer & Sealer 2.5 Litre is a professional-grade shellac-based primer, sealer and stain killer used to prepare and stabilise interior surfaces before painting. Known for its exceptional adhesion and stain-blocking performance, it helps ensure topcoats apply smoothly and achieve excellent coverage on challenging or problem surfaces.
Key Features
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Pack Size: 2.5 Litre
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Primer Type: Shellac-based primer, sealer & stain killer
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Colour: White (matt primer base)
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Primary Use: Interior priming and spot exterior priming
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Drying Time: Touch dry in ~15–20 minutes; recoatable in ~45 minutes
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Coverage: Approx. 12.5 m² per litre (actual may vary with surface texture)
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Application Methods: Brush, roller or spray
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Surface Suitability: Interior walls, ceilings, wood, metal, PVC, glossy surfaces and more
Recommended Applications
Ideal for use on:
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Interior walls and ceilings
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Doors, trims and cabinets
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Glossy or difficult surfaces (no sanding required)
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Sealing knots and sap streaks in timber
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Metal doors, trims and PVC when used as a spot primer
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Areas with stubborn stains including water, smoke, nicotine or ink
Note: For full exterior surface priming, use a product specifically formulated for exterior priming.
Performance & Benefits
Exceptional Stain Blocking
Zinsser B-I-N is formulated to block persistent stains such as water marks, smoke damage, tannin bleed and ink — stopping them from bleeding through the topcoat.
Superior Adhesion
The shellac-based formula bonds strongly to difficult surfaces, including glossy paints, metals, tiles and PVC, often without the need for sanding.
Seals Porous Surfaces
It seals and binds porous substrates to improve topcoat coverage and produce a uniform finish with excellent “enamel holdout.”
Odour & Stain Control
Apart from stain blocking, it also seals persistent odours from smoke and other sources, improving indoor air quality after decorating.
Surface Preparation & Application Guidance
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Ensure surfaces are clean, dry and free from dirt, grease and loose materials.
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Stir thoroughly before and during use to ensure consistency.
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Apply with a brush, roller or spray, covering evenly.
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Allow touch dry in approx. 15–20 minutes before recoating.
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Recoat with your chosen topcoat once the primer is dry — often in as little as 45 minutes.
Technical Specification
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Primer Base: Shellac-based
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Finish: Matt primer
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Volume: 2.5 Litre
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Coverage: ~12.5 m² per litre*
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Drying Times: Touch-dry ~15–20 min; Recoatable ~45 min
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Application: Brush, Roller, Spray
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Use: Interior full-surface and exterior spot priming
Why Choose Zinsser B-I-N Primer & Sealer 2.5 Litre?
Zinsser B-I-N 2.5 Litre provides professional-level priming performance, combining unrivalled stain-blocking power, superior adhesion and excellent sealing of porous or problematic surfaces. Its fast drying time, wide surface compatibility and ability to improve topcoat finish quality make it a trusted choice for decorators tackling challenging substrate preparation.
