BETOPRIME WB

BETOPRIME WB is a cold-applied water-based bitumen primer with special additives. It is a blend of selected bitumen emulsified with water to give an easily applied protective coating that dries to a flexible barrier.

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. BETOPRIME WB is a cold-applied water-based bitumen primer with special additives. It is a blend of selected bitumen emulsified with water to give an easily applied protective coating that dries to a flexible barrier.

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
Appearance	Dark brown (dries to black)	Visual
Density	1.00 ± 0.05 g/cc	ASTM D1475
Solid Content (by weight)	40%	ASTM D1644
Application Temperature	5°C to 55°C	-

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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.