PU18 Polyurethane Sealant

A professional-grade, one-part moisture-curing polyurethane adhesive and sealant suitable for a wide range of construction, engineering, automotive and marine applications. With a Shore A hardness of 40, PU18 produces tough, elastic seals and joints with exceptional adhesion across most common building materials — making it a genuinely versatile 2-in-1 solution for both interior and exterior use.

Applications

Suitable for use across multiple industries and applications including:

• Construction — expansion joints in brickwork, concrete pre-cast panels, curtain walls, window and door perimeters
• Automotive — waterproofing gaps, car body seams and structural joints
• Marine — sealing and bonding in demanding wet environments
• Engineering — general sealing and bonding applications

Compatible Substrates

Concrete, wood, metals, GRP, glass, rubber, PVC, ceramic, polyester, stone, and most common building materials. Also suitable for wooden flooring.

Product Features

• 2-in-1 adhesive and sealant
• One-part, moisture-curing formula — no mixing required
• Shore A hardness of 40 for tough, elastic joints
• Exceptional adhesion to most common substrates
• High movement capacity
• Resistant to water, seawater, diluted alkalis, cement grout and water-dispersed detergents
• Resistant to most chemicals, oils and non-chlorinated hydrocarbon fuels
• Tear and shock resistant
• Helps dampen vibration
• Overpaintable
• Suitable for interior and exterior use
• UKCA approved

Standards

• BS EN15651-1,4; F EXT-INT, PW INT