Vapostop ^Sale

Protect floors from rising moisture with Vapostop, a high-performance liquid vapor barrier. Ideal for concrete surfaces, it ensures durable, long-lasting protection.

Buy Vapostop from $228.97 CAD

This product is on back-order due to high demand and will be available for shipping in 8–10 weeks.

Need it now? Air freight is available for an additional fee. Contact us for pricing

Water-Based Primer for Damp Concrete Substrates

Vapostop is a one-component, water-based primer formulated with flexible acrylic resin, specifically designed for cementitious substrates. It enhances adhesion for waterproofing and acrylic coatings, creating a barrier against blistering and detachment caused by dust and moisture. This primer is water-resistant, prevents carbonation, and can be applied even on damp surfaces.

Weight: 5 kg plastic pail

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Key Features

Excellent adhesion on concrete substrates.
Suitable for application on moist surfaces.
Enhances adhesion of waterproofing and acrylic coatings.
Protects concrete from carbonation.
Resistant to water and moisture-related blistering.
Ready to use, quick and easy to apply.
Certified with European Technical Assessment (ETA n° 17/0769) when used with Acriflex Pro or Acriflex Rapido reinforced with Polites TNT.
Certified with European Technical Assessment (ETA n° 23/0574) when used with Thermikoat Cool Roof reinforced with Polites TNT.

Technical Performance

Yield: 0.10 – 0.15 kg/m² depending on surface absorption.
Color: Transparent.
Packaging: 5 kg plastic buckets (Pallet: 20 boxes, 4 buckets each, total 400 kg).
Storage: Keep in original, sealed containers in a ventilated area, away from sunlight, rain, and frost. Store at temperatures between +5°C (+41°F) and +35°C (+95°F). Shelf life: 12 months.
Application Instructions

Application

Spray

Brush

Roller

Product Yield

Package: 5 kg (11 lbs)

Per Package: 33.3 m² (366.7 ft²)

Suitable Substrates

Vapostop is ideal for improving adhesion on concrete surfaces such as:

Flat or sloped roofs
Terraces and balconies
Eaves, flashings, and cornices
Foundation and vertical walls

It also helps seal surface porosity, preventing blistering and detachment due to humidity while encapsulating dust for better adhesion on dusty substrates.

Certifications