Description
VANDEX BB 75 Cementitious Waterproofing Slurry
VANDEX BB 75 is a high-performance cementitious waterproofing slurry designed to protect concrete and masonry structures against both positive and negative water pressure. Supplied as a pre-blended grey powder, it only requires the addition of clean water to create a durable waterproof coating that bonds permanently to the substrate.
Formulated using Portland cement, graded quartz aggregates and specialist additives, VANDEX BB 75 provides excellent adhesion to both horizontal and vertical surfaces whilst remaining vapour permeable. It is suitable for waterproofing foundations, retaining walls, basements, lift pits, water tanks and other below-ground structures, as well as providing corrosion protection for reinforcing steel. Approved for contact with potable drinking water, it is an ideal solution for both residential and commercial waterproofing projects.
Key Features & Benefits
- Cementitious waterproofing slurry
- Protects against positive and negative water pressure
- Suitable for concrete and masonry
- Excellent adhesion to horizontal and vertical surfaces
- Vapour permeable after curing
- Frost and weather resistant
- Suitable for potable drinking water structures
- Can be spray, brush or trowel applied
- Provides corrosion protection for reinforcing steel
- Durable long-term waterproof barrier
- Suitable for internal and external waterproofing
- CE Marked to EN 1504-3 and EN 1504-7
Applications
- Basement waterproofing
- Foundation waterproofing
- Retaining walls
- Lift pits
- Concrete water tanks
- Drinking water reservoirs
- Concrete slabs
- Masonry waterproofing
- Tunnels
- Underground structures
- Reinforced concrete repairs
- Corrosion protection for reinforcing steel
Technical Information
- Product Type: Cementitious waterproofing slurry
- Colour: Grey
- Pack Size: 25kg
- Water Addition: 4.5–6 litres per 25kg bag
- Pot Life: Approximately 45 minutes
- Initial Setting Time: 5–8 hours
- Density (Wet Mix): Approx. 2.0kg/L
- Compressive Strength (28 Days): Approx. 40 MPa
- Flexural Strength (28 Days): Approx. 6 MPa
- Elastic Modulus (28 Days): Approx. 28 GPa
- Waterproofing Coverage:
- Pressureless Water: 3–4kg/m²
- Water Under Pressure: 4–6kg/m²
- Corrosion Protection Coverage: Approx. 2kg/m² per coat
- Application Temperature: Minimum +5°C
- Shelf Life: 12 months
Frequently Asked Questions
What is VANDEX BB 75 used for?
VANDEX BB 75 is used to waterproof concrete and masonry structures exposed to groundwater, moisture, positive and negative water pressure.
Can it be used for drinking water tanks?
Yes. VANDEX BB 75 is approved for use in structures containing potable drinking water.
Can it be applied by spray?
Yes. The product can be applied using a brush, trowel or suitable spray equipment.
Is VANDEX BB 75 suitable for reinforcing steel?
Yes. It can also be used as a corrosion protection coating for reinforcing steel before concrete repairs.
How many coats should be applied?
Most waterproofing applications require at least two coats, depending on the level of water pressure and project specification.
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