Description :

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.

Applications :

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

Advantages :

• Very easy and economical to use.
• One component.
• Excellent aging resistance.
• Paintable.
• 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 need for priming.