Bitumen Primer – Water-Based & Solvent-Based

Bitumen Primer – Water-Based & Solvent-Based is an advanced liquid-applied formulation designed to seal porous concrete, lock down dust, and promote exceptional adhesion for subsequent membranes and coatings. Its low viscosity allows deep substrate penetration, creating a highly stable interface layer resistant to moisture vapor transmission and alkalinity.

Product Overview

Bitumen Primer - Water-Based & Solvent-Based belongs to the Waterproofing Primers, Membranes & Protection Boards family. It is intended for concrete and screed, masonry, metal details where approved and roof and foundation substrates. Final product selection must account for substrate condition, exposure, application method and compatibility with adjoining layers. Bitumen Primer – Water-Based & Solvent-Based is an advanced liquid-applied formulation designed to seal porous concrete, lock down dust, and promote exceptional adhesion for subsequent membranes and coatings. Its low viscosity allows deep substrate penetration, creating a highly stable interface layer resistant to moisture vapor transmission and alkalinity.

Best-fit Applications

• Concrete and screed
• Masonry
• Metal details where approved
• Roof and foundation substrates

Technical Benefits

• Improves wetting and bond consistency
• Water- and solvent-based options
• Supports cleaner membrane installation

Technical & Performance Specifications

Physical Property	Declared Performance Value	Test Standard
Specific Gravity	0.98 - 1.02	ASTM D1475
Drying Time (Tack-Free)	2 to 4 hours (at 35°C)	ASTM D1640
Full Cure Time	24 hours	ASTM D1640
Adhesion to Concrete	> 1.5 N/mm²	ASTM D4541
Solids Content	Approx. 40% - 60%	ASTM D1644
VOC Level	Eco-friendly, ultra-low VOC	EPA Method 24

Technical Datasheet Locked

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Application Guidelines & Installation Method

Step 1: Stir primer thoroughly before use.

Step 2: Apply the primer evenly using a brush or roller.

Step 3: Apply uniformly to both horizontal and vertical surfaces.

Step 4: Ensure complete and consistent coverage of the substrate.

Step 5: Recoat areas that appear lighter or insufficiently covered.

Step 6: Allow the primer to dry until it is tack-free.

Standard Compliance

Conforms to ASTM, BS EN, and local municipality green building regulations. Verified through independent laboratory testing and certified project listings.

Products

Water-Based Bitumen Primers

BETOPRIME WB

Water-Based Bitumen Primers

Explore individual technical documents, specifications, and compatible systems for this named grade.

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Solvent-Based Bitumen Primers

BETOPRIME SB

Solvent-Based Bitumen Primers

Explore individual technical documents, specifications, and compatible systems for this named grade.

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