Product Facts
- Product Name
- Nitoproof 750 - Polyurethane Waterproofing Membrane
- Price
- Available
- Availability
- In Stock
- Condition
- New
- Category
- Building & Construction Materials > Waterproofing Membranes
- Seller
- Fosroc Workspace
- MPN
- FC000609-15L
Nitoproof 750 - Polyurethane Waterproofing Membrane
Nitoproof 750 is a single-component polyurethane liquid which cures by reaction with atmospheric moisture to give a tough elastomeric waterproof membrane. Solvent based formulation with pitch-free composition, high elongation (>600%), and non-staining properties. Easily applied at recommended thickness to both vertical and horizontal surfaces. Suitable for waterproofing foundations, basements, roofs, and tunnels.
Nitoproof 750 is a single-component polyurethane liquid which cures by reaction with atmospheric moisture to give a tough elastomeric waterproof membrane. Solvent based formulation with pitch-free composition, high elongation (>600%), and non-staining properties. Easily applied at recommended thickness to both vertical and horizontal surfaces. Suitable for waterproofing foundations, basements, roofs, and tunnels.
Price: Available
Brand: Fosroc
Product Data (OpenAI Spec)
View Full JSON Spec ↗Specifications
| Condition | new |
|---|---|
| Category | Building & Construction Materials > Waterproofing Membranes |
Product Intelligence
Nitoproof 750 - Polyurethane Waterproofing Membrane
Overview
Nitoproof 750 is a high-performance, single-component polyurethane liquid waterproofing membrane manufactured by Fosroc. It cures by reaction with atmospheric moisture to create a tough elastomeric waterproof barrier. This product is designed for a wide range of internal and external waterproofing applications where flexibility, durability, and superior barrier properties are essential.
Product Description
Nitoproof 750 is supplied as a thixotropic liquid in 15-litre containers (product code FC000609-15L). The formulation features a pitch-free composition that is readily applied directly from the container without any mixing requirements. Upon curing, it develops into a permanently flexible resilient barrier capable of performing across a wide range of temperatures.
Key Properties and Specifications
Physical Characteristics
| Property | Value |
|---|---|
| Form | Single-component moisture curing polyurethane viscous liquid |
| Colour | Grey |
| Solids Content | 90% (+/- 2%) |
| Specific Gravity | 1.28-1.33 g/cm³ |
| Non Volatiles | 90% |
| VOC Content | 123 g/litre |
Performance Properties
| Property | Value |
|---|---|
| Elongation at Break | >300% (Class III membrane) |
| Tensile Strength | 2.0 MPa |
| Adhesion in Peel (Concrete) | 93.6N (ASTM C794) |
| Moisture Transmission Rate | 15.6 g/m²/24hrs (ASTM E 96) |
| Hardness | 40 Shore A |
| Tack Free Time @ 20°C, 50% RH | 16 hours |
| Full Cure Time @ 20°C, 50% RH | 36 hours at 1.5 mm WFT |
Environmental Performance
| Property | Value |
|---|---|
| Application Temperature Range | 5°C - 35°C |
| Service Temperature (Continuous Ambient) | -20°C to +80°C |
| Re-coating Interval | Maximum 2 days after application |
| Root Resistance | No root penetration observed (PD CEN/TS 14416:2014) |
Application Method and Design Criteria
Nitoproof 750 is designed to be applied by roller, trowel, or squeegee directly to prepared substrate surfaces. The membrane must achieve a wet film thickness (WFT) of not less than 1.5 mm (approximately 1.3 mm dry film thickness).
For applications requiring compliance with AS/NZS 4654.1:2012, Nitoproof 750 must be applied as two coats with:
- Minimum total WFT of 1.7 mm
- Coverage rate of 1.7 litres/m²
- Resulting minimum DFT of 1.5 mm
Coverage and Yield
The product delivers theoretical coverage rates of:
- 1.5 - 1.7 litres/m² for total 2 coats
- 8.8 - 10 m² per 15-litre drum
Note: These are theoretical yields with no allowance made for wastage.
Suitable Applications
Nitoproof 750's high elasticity, excellent bond, and low water permeability make it ideal for a wide range of waterproofing applications, including:
- Foundations and basements
- Tunnels and underground structures
- Ground floors and suspended floors
- Roof terraces and balconies
- Patios and external decks
- Bridges and inspection pits
- Sewage works and inverted roofs
Key Advantages
- Class III membrane classification with high elongation (>300%)
- Non-staining pitch-free formulation
- Ready to apply - no mixing required; readily applied direct from can
- Cures to permanently flexible barrier over wide temperature range
- Excellent build properties - applicable to both horizontal and vertical surfaces
- Outstanding barrier properties - protects against corrosive soil conditions
- Root resistant - no root penetration observed
- Irreversible chemical cure - eliminates melting and flow at high temperatures
- Excellent embrittlement resistance across extended service life
Chemical Resistance
Nitoproof 750 demonstrates strong resistance to:
- Mild acids and alkalis
- Water-borne salts
- Bio-degradation
- Detergents and bleach-based cleaning products
For specific chemical data, contact Fosroc technical support.
Curing and Protection Requirements
Nitoproof 750 is not UV stable and must be cured for a minimum of 24 hours at 25°C before placing protection. Tiling should commence within 5 days of application.
Flood Testing
Prior to placement of protection, the membrane must be flood tested to:
- Minimum depth of 50 mm of water
- Duration of 24 hours
- Drains must be plugged and barriers placed to contain water
Storage and Shelf Life
Nitoproof 750 has a shelf life of 18 months from the date of manufacture when stored in:
- Cool, dry conditions not exceeding 25°C
- Original, unopened packaging
Storage above 25°C may reduce storage life. Note that surface skin may occur even in unopened containers and should be completely removed before use.
Standards Compliance
Nitoproof 750 has been independently tested by CSIRO and complies with:
- AS/NZS 4654.1:2012 - Waterproofing membranes for external above-ground use, Part 1: Materials (CSIRO test report SW8554)
Copies of test reports are available from the Fosroc website.
Limitations
- Nitoproof 750 must not come in contact with bitumen surfaces; if trace quantities of bitumen are present, Nitoproof 510 prime coat may be used to isolate bitumen
- Not suitable for long-term exposure to sunlight without protective covering
- Must be protected by cementitious screed or protection board where traffic or backfilling damage is possible
References
- [1] Fosroc_Nitoproof_750_TDS.pdf
- [2] Fosroc_Nitoproof_810_TDS.pdf