3M™ Impact Resistant Structural Adhesive (IRSA) is formulated for true automotive OEM-specified structural bonding applications, excellent for collision absorption in steel structures and advanced lightweight aluminium alloys. This two-part epoxy adhesive delivers extended worktimes – up to 1 hour – and can be rapidly heat-cured. The adhesive changes from silver to purple as the adhesive cures.

• Formulated specifically for collision absorption in OEM-specified structural bonding applications
• Two-part epoxy bonds steel and automotive aluminium alloys, great for lightweight structures
• Can be weld-bonded or rivet-bonded immediately after application
• Affords long work times (up to 1 hour) to help ensure precise bond with fit-up
• Can be rapidly cured with heat (approx. 30 minutes)
• Silver-coloured adhesive turns purple as it cures, indicating when process has begun
• Excellent extreme temperature performance
• Corrosion inhibiting formula delivers lifetime corrosion protection
• OEM Recommended