LEAKSEAL®
Vapour Barrier WB
A one-component, water-based acrylic primer with excellent vapour-barrier and water-resistance properties, formulated to stabilise and seal cementitious subfloors before installing wooden, laminate or resin-based flooring systems.
LEAKSEAL® Vapour Barrier WB is a high-performance primer designed for use on both absorbent and non-absorbent subfloors prior to the application of wooden and resinous flooring systems. The primer penetrates and binds dense, weak or dusty cementitious substrates, reinforcing the surface and ensuring a strong, reliable bonding base for flooring adhesives and coverings.
With its excellent water vapour-barrier performance, LEAKSEAL® Vapour Barrier WB helps block excessive residual moisture in concrete slabs and cement screeds (minimum 28-day cure with no visible surface water). It is particularly effective in buildings located in high-water-table areas, where moisture ingress may otherwise damage wooden, parquet, laminate or resin flooring systems. The result is a stable, protected subfloor that supports long-term flooring integrity and performance.
Features & Benefits
- Excellent water vapour-barrier properties
- Superior resistance to moisture penetration
- Reinforces weak or dusty cementitious substrates
- Provides a solid surface for adhesive bonding
- Excellent adhesion to concrete and screeds
- Good substrate penetration and sealing
- Helps prevent moisture-related flooring failures
- Low-VOC, water-based formulation
Intended Uses
LEAKSEAL® Vapour Barrier WB is intended for priming and sealing cementitious subfloors prior to the installation of wood and resin-based flooring in residential, commercial and light-industrial environments.
Typical Applications Include:
- Solid wooden flooring
- Parquet flooring systems
- Laminate wood flooring
- Resin and epoxy flooring systems
- Adhesive-bonded flooring installations
Suitable Substrates
- Concrete slabs and cement screeds (≥ 28 days cured)
- Absorbent and non-absorbent subfloors
- Dense, weak or dusty cementitious surfaces
