Flexseal
PU425

One component, non sag, elastomeric polyurethane sealant with high tear and weather resistance
 
Advantages
  • Very easy and economical to use.
  • One component.
  • Excellent ageing resistance.
  • Paintable.
  • Remains elastic at temperatures down to -40⁰C.
  • Good resistance to microorganisms and a variety of chemicals.
  • Good adhesion to most surfaces without the need for priming.
Description

Flexseal PU425 is a one component non sag polyurethane sealant that cures by reacting with air humidity to form a tough and highly elastic low modulus sealant. Flexseal PU425 has a very wide service temperature range.

Suitable for vertical and horizontal joints.

Packaging

Flexseal PU425 is available in 600 ml sausages. 300 ml sausages and 300 ml cartridges are available on request.

Storage

Flexseal PU425 should be stored in original unopened packages at temperature of 5⁰C - 25⁰C in a dry place.

Shelf Life

Flexseal PU425 has a shelf life of 12 months from date of manufacture if stored under the recommended conditions.

Standards

Flexseal PU425 complies with:

  • ISO 11600, Type F, Class 25 LM.
  • ASTM C920, Type S, Grade NS, Class 25, Use NT, T1, A, M and I.
  • DIN 18540-F.
  • U.S. Federal specification TT-S-00230C, Type 2, Class A.

Applications

  • General sealing of construction and expansion joints.
  • Basement walls.
  • Precast concrete elements.
  • For concrete, wood, marble, stone, aluminum, steel, ceramic, gypsum boards, etc.


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