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Bitumen Primer

Solvent-based bitumen primer ensuring strong adhesion of bitumen membranes to concrete and masonry substrates.

Solvent-BasedBitumen MembraneBrush/SprayFast Drying
COVERAGE0.25–0.35 kg/m²
DRYING30–60 min
APPLICATIONBrush / Spray
SHELF LIFE12 months

Overview

Bonds bitumen to substrate. Every time.

Bitumen Primer is a solvent-based bitumen-cutback primer formulated specifically for priming concrete, masonry, and metal substrates before installation of bitumen membrane waterproofing systems. Low viscosity ensures deep penetration into porous substrates.

Standard companion product for all torch-on and self-adhesive bitumen membrane installations.

Key Features

  • Solvent-based bitumen cutback
  • Deep penetration into porous substrates
  • Brush, roller, or spray application
  • Fast drying – 30–60 minute recoat
  • Compatible with all bitumen membrane types
  • Cost-effective volume use

Technical Specs

Technical Specifications

All values measured at 23°C unless noted. Full test data available in the datasheet.

PropertyValueUnit
FormSingle-component solvent-based liquid
CompositionBitumen + solvents
ColourBlack
Density0.85 ± 0.05g/cm³
Solids content45 ± 5%
Coverage0.25–0.35kg/m²
Application methodBrush / roller / spray
Drying time30–60min
Recoat time60min
Flash point< 35°C
Application temperature+5 to +40°C
Service temperature−20 to +80°C
Packaging5 / 20L
StandardsASTM D41 · BS 6925

Applications

Where this product is used

Five typical site applications where our crews specify this product.

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Roof waterproofing

Priming under bitumen membrane roof systems.

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Foundation tanking

Priming for below-grade bitumen tanking.

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Bridge decks

Priming for bridge deck waterproofing.

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Podium decks

Priming under heavy-duty membrane systems.

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Asphalt interface

Priming concrete prior to asphalt overlays.