Nitoseal® PU220
- Chemical Family
- Polyurethanes (PU)
Nitoseal® PU220 is a two part polyurethane formulation which is blended with high grade pitch which cures to form elastomeric, highly resilient seals with excellent recovery properties. It does not exhibit the characteristic disadvantages of conventional bituminous or tar based compounds such as embrittlement, thermo-plasticity and cold flow tendencies. Cured Nitoseal® PU220 seals are watertight and highly resistant to weathering and aging. Nitoseal® PU220 is supplied as a black, gun grade sealant suitable for both vertical and horizontal joints.
Other characteristics
- Brand
- Nitoseal
- Product Type
- 2K (2 component) Sealant
- Application Area
- Tanks
- Usage
For sealing movement joints in building and civil engineering construction above or below ground. For subways, retaining walls, sea walls and sewage treatment plants. Suitable for areas subject to fuel and chemical spillage.
- Markets
- Building & Construction
- Industrial
- Storage
Shelf life - 12 months if stored in the original unopened containers in a cool dry place.
- Coverage
Typical coverage, depending upon substrate porosity and joint profile, is 100 meters of 10 mm joint depth per liter.
- Advantages
Excellent elastomeric and recovery properties.; Prolonged life due to high weathering resistance.; Resists bio-degradation in sewage treatment.; Wide range of operating temperatures.; Choice of primers gives outstanding adhesion even to damp concrete.; Can be accelerated to allow use in tidal conditions.
- Limitations
Application should not commence if the temperature of the substrate is below 5°C.; The service temperature range of Nitoseal PU220 is -30°C to +80°C.
- Technology
- Ready-to-Use Products
- Pot Life (10°C)
- 2 - 3
- Pot Life (20°C)
- 1 - 2
- Pot Life (35°C)
- 30 - 60
Technical data
Table 1 of 1
10 rows| Characteristic | Value | Unit |
|---|---|---|
| Flash Point (Nitoprime 25) | 39.0 | °C |
| Flash Point (Solvent 102) | 33.0 | °C |
| Hardness (7 days, 25°C) | 15 - 25 | Shore A |
| Movement Accommodation Factor | 25.0 | % |
| Tack-free Time (10°C) | 72.0 | hours |
| Tack-free Time (20°C) | 24 - 48 | hours |
| Tack-free Time (35°C) | 16 - 24 | hours |
| Tack-free Time (With accelerator, 8 ml per 4 litre pack, 10°C) | 1.0 | hour |
| Tack-free Time (With accelerator, 8 ml per 4 litre pack, 35°C) | Not Required | hours |
| Tack-free Time (With accelerator, 8 ml per 4 litre pack, 20°C) | 24.0 | hours |
