PU18 Polyurethane Adhesive Sealant High Strength Marine Window Boat Pond Choose Colours: Black, Grey White Description: A one part moisture curing polyurethane adhesive/sealant for the construction and transport industries. PU18 produces tough, elastic seals and joints with excellent adhesion characteristics and resistance to most chemicals. PU18 is also oil resistant making it ideal for the engineering industry. Conforms to BS EN 15651‐1,4:2012. Uses Bond It PU18 can be used for sealing and bonding in engineering, construction, automotive and marine applications. It is ideal for use on: concrete; wood; metals; GRP; glass; rubbers; and most common building materials. Preparation Ensure all surfaces are clean, dry and free from grease, oil or any other contaminants that.