One component, non-sag, elastomeric polyurethane sealant with high tear and weather resistance (Formerly known as Flexseal PU440)
Advantages
- Very easy and economical to use.
- One component.
- Excellent ageing resistance.
- Paintable.
- Excellent acoustic properties.
- Remains elastic at temperatures down to -22oF (-30oC).
- Good resistance to microorganisms and a variety of chemicals.
- Good adhesion to most surfaces without the need for priming
Applications
- General sealing of construction and expansion joints.
- Basement walls.
- Precast concrete elements.
- For concrete, wood, marble, aluminum, steel, ceramic, gypsum boards, etc.
Standards
Donseal PU440 complies with:
- ASTM C920, Type S, Grade NS, Class 25, Use NT, T, A, and M.
- S. Federal specification TT-S-00230C, Type 2, Class A.
- ISO 11600, Type F, 25 LM.
- EN 15651-1:2012, F-EXT-INT-CC.
- DIN 18540-F.