3M Polyurethane Sealant | 540 | 600ml | Pack of 12

3M Polyurethane Sealant 540 is a single-component, moisture-curing, flexible sealant ideal for sealing and bonding in both construction and transportation applications. This high-performance polyurethane sealant delivers strong adhesion to a variety of substrates, including metal, fiberglass, plastic, and painted surfaces—without the need for primers in most cases.

Formulated for long-term durability, 3M 540 remains flexible after curing, making it perfect for dynamic joints subject to vibration or movement. It is commonly used for sealing building panels, RVs, buses, trailers, HVAC systems, and marine equipment.

This listing is for 600ml white sausages, supplied in a Pack of 12, making it ideal for bulk users and professionals.