Stain Block

Everbuild Sika Stain Block is a 400ml aerosol-applied, heavily pigmented white stain-blocking primer manufactured by Sika Limited under the trusted Everbuild brand. Designed for both trade decorators and DIY users, it permanently prevents stubborn stains — including water marks, mould, nicotine, rust, grease, soot, and pen marks — from bleeding through subsequent paint coatings. Its ready-to-use aerosol format makes it one of the fastest and most convenient stain sealers available for walls, ceilings, and a wide range of household and commercial surfaces.

Key Features and Specifications

• Size: 400ml pressurised aerosol can
• Colour: White
• Formula: Heavily pigmented solvent-based spray paint
• Application method: Ready-to-use aerosol — no brush or roller required
• Dry time: Approximately 15 minutes before overcoating
• Spray distance: Apply from 20–30 cm for optimum coverage
• Stains blocked: Water marks, damp patches, mould stains, nicotine, rust, grease, soot, and pen marks
• Surface compatibility: Most household and commercial interior surfaces including plaster, plasterboard, timber, and masonry
• Manufacturer: Sika Limited (Everbuild range)
• Country of origin: United Kingdom
• Storage: Store in cool, dry conditions away from sunlight and sources of ignition
• Note: If using solvent-based topcoat, apply a water-based primer over the Stain Block first to ensure compatibility

Applications

• Sealing water stain marks on ceilings after a roof or pipe leak
• Blocking nicotine and smoke stains on walls before redecorating
• Covering mould and damp stains prior to painting — treat mould with fungicidal wash first
• Hiding rust bleed-through on metal surfaces before topcoating
• Spot-treating grease, soot, and pen marks on interior walls
• Pre-paint preparation in rental property refurbishments and renovation projects
• Quick stain isolation on commercial and hospitality premises

Why Choose This Product

The Everbuild Sika Stain Block 400ml delivers professional-grade stain isolation in a no-fuss aerosol format — no mixing, no brushes, and no specialist equipment needed. The heavily pigmented formula provides reliable coverage in a single coat on lighter stains, with a fast 15-minute dry time that keeps decorating projects on schedule. Backed by Sika Limited’s decades of construction chemistry expertise, it is a go-to choice for painters, decorators, and property maintenance professionals across the UK.

Delivery in and Around London

We deliver the Everbuild Sika Stain Block to all London boroughs, including Croydon, Lewisham, Southwark, Camden, and Hackney, as well as Greater London areas such as Enfield, Bexley, Redbridge, and Barnet. We also supply to surrounding counties including Kent, Essex, Surrey, and Hertfordshire. Trade quantities and multi-unit orders are welcome. Contact us for bulk pricing and scheduled delivery options to suit your project timeline.