- Very easy and economical to use.
- One component.
- Excellent aging resistance.
- Excellent acoustic properties.
- Remains elastic at temperatures down to -40oF (-40oC).
- Good resistance to microorganisms and a variety of chemicals.
- Good adhesion to most surfaces without the need for priming.
Donseal PU440 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. Donseal PU440 has a very wide service temperature range. Suitable for vertical and horizontal joints.