Description
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 minimise 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 5mm for non-porous surfaces and 10mm for porous surfaces. For joint widths exceeding 35mm, please contact your local Fosroc Technical Service Department.
Advantages
- UV resistant
- Easy to apply
- Single component with fast rate of cure
- Adhesion to most common building materials
- Available in range of colours
- ISO 11600:2002 Type F 25LM compliant
- Primerless for most applications (see “Priming”)
Properties
| Properties | |
|---|---|
|
Form: |
Smooth, non-slumping paste |
|
Colour: |
For current range contact |
|
Skinning time at |
Approx 2 hours |
|
Cure rate at 20°C/ 50%RH |
24 hours 3 mm |
|
Application temperature |
5°C to 50°C |
|
Hardness at 20°C |
Shore “A” 25 |
|
Movement accommodation factor |
25% |
|
UV resistance |
Very Good |
|
Service temperature range |
-40°C to 70°C |