Nitoseal® PU40
- Chemical Family
- Polyurethanes (PU)
Nitoseal® PU40 is a one part, low modulus gun grade elastomeric sealant based on polyurethane technology. Nitoseal® PU40 may be applied to joints between 5 and 35mm wide. To minimize stress imposed on the joint sealant, all moving joints should be designed to an optimum width to depth ratio of 2:1 with an overriding minimum depth of 5mm for non-porous surfaces and 10mm for porous surfaces.
Properties
- Physical Form
- Paste
Product families
Applications
- Sealants & Caulks
Product Families
- Caulks & Sealants
Other characteristics
- Brand
- Nitoseal
- Product Type
- 1K (1 component) Sealant
- Compatible Substrates & Surfaces
- Brick, Concrete, Masonry
- Usage
Nitoseal PU40 is suitable for sealing joints in concrete, brickwork, blockwork, precast panels, stone cladding, perimeter sealing around doors and windows, and non-trafficked floor joints.
- Color
- Available in a range of colors.
- Markets
- Building & Construction
- Priming
A primer is not normally required. In joints subjected to high ovement or where intermittently immersed during service, Berger Fosroc Primer 7 (porous substrates, drying time 30 minutes) or Berger Fosroc Primer 4 (non-porous substrates, drying time 2-5 minutes) is recommended. Prime the joint face using a clean, dry brush. Avoid over application of primer, to prevent causing puddles in the bottom of the joint. If a primed joint on porous substrate is left unsealed for more than 4 hours, the primer should be removed by grit blasting or grinding and the joint re-primed; on non-porous substrate, joint should be re-primed.
- Storage
12 months if stored in the original unopened sachets in a cool dry place. Do not store in direct sunlight.
- Disposal
Dispose according to local authority regulations. Do not dispose down drains or into local waterways.
- Advantages
- Adhesion to most common building materials.
- Single component with fast rate of cure.
- Easy to apply.
- UV resistant.
- Primerless for most applications.
- ISO11600:2002 Type F 25LM compliant.
- Technology
- Ready-to-Use Products
- Packaging Type
- Sachets
- Compliance
ISO11600:2002 Type F 25LM; ASTM C920-95 Type S, Grade NS, Class 25; US Fed Spec TT-S-00230a Type II, Grade NS, Class 25
Technical data
Table 1 of 1
7 rows| Characteristic | Value | Unit |
|---|---|---|
| Application Temperature | 5 - 50 | °C |
| Cure Rate (24 hours, 20°C, 50% RH) | 3.0 | mm |
| Hardness (20°C) | 25.0 | Shore A |
| Movement Accommodation Factor | 25.0 | % |
| Service Temperature | -40 - 70 | °C |
| Skinning Time (20°C, 50% RH) | 2.0 | hours |
| UV Resistance | Very Good | — |
