3M Scotch-Weld Epoxy Adhesive 72403M Scotch-Weld Epoxy Adhesive 7240 is a toughened, two-part epoxy adhesive with a 2:1 mix ratio, 45 minute work life and handling strength in about 6 hours. This product is very durable and commonly used in applications in the transportation industry. Bond metal to metal with an excellent toughened adhesive that’s formulated to last. Our two-part epoxy resin adhesive is certified for use on trains. Due to high shear and peel adhesion, you can be confident it will wear for the long term. Designed with 300 μ m glass beads for accurate glue line control. DetailsThis adhesive delivers strong environmental resistance, performing reliably in heat, moisture, and chemically aggressive conditions. It features 300 μm glass beads that actively control bond line thickness and reduce adhesive squeeze-out. This ensures clean, consistent bonds across large surfaces. The formulation supports precise application, even on wide or uneven panels. Engineers have tested it to EN 45545, confirming its compliance with strict railway fire safety standards. It holds up under demanding use and continues to perform where long-term durability is critical. Designed for industrial bonding, this adhesive brings strength, accuracy, and fire-safe performance to every application.This adhesive is particularly ideal for bonding on large surfaces
