waterproofing membrane
NP140 is specifically engineered as a unique, flexible, one-component cementitious waterproofing membrane. It is suitable for use over wet substrates, in a range of positive and negative waterproofing applications including retaining walls, swimming pools, roof areas, balconies and terraces and internal wet areas.
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INTRODUCTION
Cureflex® NP140 has been specifically engineered as a flexible, cementitious, waterproofing membrane suitable for use over wet* substrates in a range of positive and negative waterproofing applications.
Cureflex® NP140 can be used...
- in immersed applications such as water features and swimming pools.
- for retaining walls, planter boxes and walls built below water tables.
- on roofs and roof areas (that will be covered by other surface toppings).
- for repairs to non-exposed gutters and potable water storage tanks.
- on internal/external basement walls.
- on balconies, podiums and terraces.
- in lift shafts and lift pits.
- and in other wet areas
*Cureflex® NP140 performs best on damp surfaces. Do not apply directly over surfaces with ponding. Remove all excess water prior to application.
PREPARATION & APPLICATION
- All substrates must be clean and free from any contaminants before application.
- Suitable for applications on porous surfaces when primed using water.
- Can also be applied over the top of non-cured Cureflex® PG57.
- Pre-dampen substrates with light water mist (weed sprayer or similar).
- Requires a suitable bond breaker at all substrate junctions (Cureflex® Flexiban recommended)
COVERAGE & CURING
- For general waterproofing (positive pressure) a minimum 1.5mm dried film thickness is required (0.8L/1.2kg/ m2 per mm layer thickness).
- For immersed and negative pressure applications a minimum 2.0mm dried film thickness is required (0.8L/1.2kg/ m2 per mm layer thickness).
- Pot life of mixed membrane is approximately 1 hour (23°C).
FEATURES & BENEFITS
- No primer required.
- Bonds to damp surfaces.
- Ready for immediate use.
- Single component formulation
- Easy to apply with a brush, roller, spray equipment or notched trowel.
- Can handle up to 6bar of positive water pressure and up to 1.5bar of negative water pressure.
- Suitable for internal and external, underground and immersed surfaces
- Approved for potable water use.
- Compatible with concrete toppings, screeds, renders and tile adhesives.
- Resistant to efflorescence (salts) and the effects of concrete carbonation.
NP140
WATERPROOF MEMBRANE
