Description Zinsser B-I-N Primer Sealer is a professional-grade, shellac-based primer, sealer and stain blocker designed to solve the most challenging surface preparation problems. Renowned for its unmatched adhesion and stain-blocking performance, B-I-N creates a reliable foundation for high-quality decorative finishes in both professional and DIY applications. Key Features & Benefits Ultimate Stain Blocking PerformancePermanently blocks severe stains including water marks, smoke and fire damage, nicotine, tannin bleed, knots, ink, grease, crayon and rust, preventing reappearance through topcoats. Outstanding AdhesionBonds exceptionally well to difficult surfaces such as glossy paints, varnish, ceramic tiles, PVC, metal and glass, often eliminating the need for extensive sanding. Odour Sealing PropertiesEffectively seals and locks in persistent odours caused by smoke, pets, food or fire damage, leaving surfaces fresh and ready for finishing. Fast Drying FormulaTouch dry in approximately 15 minutes and ready for recoating in around 45 minutes, allowing projects to be completed quickly and efficiently. Primer and Sealer in OneCombines excellent sealing with a uniform base coat, improving paint coverage, adhesion and long-term durability of the finished surface. Suitable Surfaces Interior walls and ceilings Wood, MDF and timber (including resinous knots) Metal and aluminium PVC, uPVC and plastics Gloss-painted and previously varnished surfaces Ceramic tiles and hard-to-bond substrates (Suitable for interior use and spot exterior priming where required.) Application Can be applied by brush, roller, pad or spray Easy to sand once dry for an ultra-smooth finish Compatible with both water-based and solvent-based topcoats Coverage Covers approximately 12–13 m² per litre, depending on surface condition and porosity. Typical Uses Blocking stubborn stains prior to redecorating Sealing knots and resin bleed in timber Priming glossy or non-porous surfaces Odour sealing in renovation and restoration projects High-performance preparation for premium paint finishes Finish Smooth, matt white finish that provides an ideal base for topcoating.
