Waterproof Blue Brush Applied Liquid DPM - 5kg - Blue
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Product Information
Full details
The B&Q Waterproof Blue Brush Applied Liquid DPM (IM/00WPBB5) is a high-performance solution designed for contractors and DIYers needing to seal complex junctions, corners, and foundation details. It offers a robust, VOC-free, water-based membrane that creates an airtight and watertight barrier, serving as a superior alternative to traditional plastic DPCs. While it excels at sealing intricate areas, users should note that the brush-grade formula is best suited for detailing and small-to-medium surface areas rather than large-scale floor leveling.
All features
| Colour | Blue |
|---|---|
| Model Part Number | IM/00WPBB5 |
| Brand | B&Q |
Extended Product Information
FAQs
Does this product require a primer?
In most cases, on clean concrete or masonry, no primer is required. However, on extremely dusty or porous surfaces, a thin diluted coat can act as a primer.
Can this be used on external walls?
Yes, it is UV resistant and durable enough for external detailing, though it should be protected from standing water until fully cured.
Is the blue color permanent?
The blue color is intended for easy identification during application to ensure full coverage; it will remain visible after curing unless covered by finishes.
Can I apply a second coat?
Yes, once the first coat is touch-dry, a second coat can be applied to ensure maximum thickness and coverage in high-risk areas.
How do I clean my brushes after use?
Since it is a water-based product, you can clean brushes with warm, soapy water immediately after application before the material cures.
Troubleshooting
The membrane is taking too long to cure.
High humidity or temperatures below 5C can slow down curing. Ensure the area is ventilated and avoid applying in freezing conditions.
Poor adhesion to the substrate.
Ensure the surface is free of dust, grease, and loose particles. If the substrate is extremely porous, apply a thin primer coat first.
Pros and Cons
Pros
- UV resistant for added durability in exposed areas
- No requirement for additional corner reinforcements
- VOC-free and water-based for safer application
- Effective at sealing complex geometries and tight angles
- Provides long-term structural integrity through high flexibility
Cons
- Not intended for large, wide-open surface coverage
- Requires proper surface preparation for optimal bonding
- Drying time may vary based on temperature and humidity
Setup, Compatibility & Care
Compatibility:
This membrane is compatible with most mineral-based substrates, including poured concrete, concrete blocks, and cement screeds. It is not designed for use on bitumen, loose-laid plastic, or contaminated surfaces.
Setup Steps:
- Prepare the surface by removing loose debris, oil, or grease.
- Ensure the surface is slightly damp but not saturated.
- Stir the contents of the 5kg tub thoroughly before application.
- Apply directly using a quality masonry brush, focusing on achieving a consistent thickness.
Care and Storage:
Keep the container tightly closed in a cool, dry area away from frost. If the membrane is applied in cold conditions, allow for extended curing time before exposing it to weather or backfilling.