
Flexseal PU440
One component, non sag, elastomeric polyurethane sealant with high tear and weather resistance
Flexseal PU440 is a one component, solvent free, non sag polyurethane sealant that cures by reacting with air humidity to form a tough and highly elastic sealant. Flexseal PU440 has a very wide service temperature range. Suitable for vertical and horizontal joints.

Downloads
Flexseal PU440_TDS.pdf
TDS
Flexseal PU440_MSDS_0.pdf
SDS
Flexseal PU440_MS.pdf
MS
- Very easy and economical to use.
- One component.
- Solvent free.
- Excellent aging resistance.
- Paintable, consult DCP’s Technical Department for more details.
- Remains elastic at low temperatures.
- Good resistance to microorganisms and a variety of chemicals.
- Good adhesion to concrete without the need for priming.
- General sealing of construction and expansion joints.
- Basement walls.
- Precast concrete elements.
- For concrete, wood, marble, stone, aluminum, steel, ceramic, gypsum boards, glass, etc.
Flexseal PU440 is available in 600 ml sausages. 300 ml sausages and 300 ml cartridges are available on request.
Flexseal PU440 should be stored in original unopened packages at temperatures between 4oC and 30oC in a dry place.
Flexseal PU440 has a shelf life of 12 months from date of manufacture if stored under the recommended conditions.
Flexseal PU440 complies with:
- ASTM C920, Type S, Grade NS, Class 25, Use NT, T1, A, G, M and I*.
- LEED® EQc 4.1 SCAQMD, Rule 1168.
* For use I — at normal condition for immersion test..