Nitoseal® PU280
Nitoseal® PU280 two-part pouring grade sealant is formulated from a blend of epoxy and urethane polymers. The mixed sealant is self leveling and can be poured directly into hori- zontal joints to form a tough resilient seal possessing a limited degree of flexibility.
Product families
- Caulks & Sealants
Other characteristics
- Brand
- Nitoseal
- Product Type
- 2K (2 component) Sealant
- Usage
For sealing internal floor joints subject to heavy industrial use in factories, food processing areas, warehouses and maintenance facilities. Particularly suitable for sawn joints in long strip flooring and other large internal areas.
- Color
Nitoseal® PU280 is available in a range of attractive colors with a separate color pack providing visual mixing control.
- Markets
- Building & Construction
- Storage
12 months in original containers stored in cool dry conditions i.e. not exceeding 25°C. Storage above this temperature may reduce storage life.
- Advantages
Load bearing for support of arises under heavy wheel load.; Good resistance to chemicals and hydrocarbon fuels.; Excellent adhesion without primer to dry clean concrete.; Pouring grade ensures ease of placing.; Suitable for use in wide joints.; Self leveling to produce uniform and neat joints.
- Limitations
Nitoseal PU280 is not intended for use in vertical joints, for further advise contact the Technical Department.
- Technology
- Ready-to-Use Products
- Specification
Joints shall be sealed where designated using Nitoseal PU280, epoxy urethane sealant manufactured and supplied by Berger Fosroc. The sealant shall be applied strictly in accordance with the manufacturer's current technical data sheet.
- Design Criteria
Joints should be designed so that total movement due to con- crete shrinkage and thermal change does not exceed the 10% movement accommodation factor related to the joint width. We would recommend that joints to be sealed with Nitoseal PU280 are left till the fi nal stages of construction when internal temperatures have stabilized and initial concrete shrinkage has taken place. The bulk of concrete shrinkage will take place within the first 28 days therefore sealant works should be delayed for this minimum period.
Technical data
Table 1 of 1
12 rows| Characteristic | Value | Unit |
|---|---|---|
| Application Temperature | 5 - 45 | °C |
| Coverage (Nitoprime 25, 10mm joint depth) | 100.0 | Lm |
| Cure Time (Full, 35°C) | 3.0 | days |
| Cure Time (Full, 35°C) | 2.0 | days |
| Cure Time (Initial, 20°C) | 24.0 | hours |
| Cure Time (Initial, 20°C) | 12.0 | hours |
| Flash Point (Nitoprime 25) | 29.0 | °C |
| Flash Point (Nitroflor Sol) | 33.0 | °C |
| Hardness | 60 - 80 | Shore A |
| Movement Accommodation Factor | 0.1 | % |
| Service Temperature | -10 - 70 | °C |
| Specific Gravity | 1.31 | — |
