A Structural Adhesive for Automotive Substrates
Engineered to withstand much higher impact vs. traditional bonding adhesives, 3M™ Impact Resistant Structural Adhesive (IRSA) is excellent for true OEM specified automotive structural applications. It adheres to properly prepared automotive substrates including mild steel, high strength steel and automotive aluminum alloys – vital as OEMs strive to achieve high strength in increasingly lightweight structures. Two part epoxy adhesive is recommended for all weld bonded and rivet bonded joints when specified by an OEM. It provides an extended work time – as long one hour – and cures rapidly with heat (30 minutes at 80ºC/175ºF). Adhesive applies in a silver color and changes to purple as it cures, indicating when the process has begun.
Impact Resistance and More
3Mâ„¢ IRSA is designed to absorb collision energy forces and delivers increased torsional rigidity for OEM specified automotive structures. It allows for spot welding (form squeeze type) in an uncured state, typically up to three hours after application. Properly applied adhesive will seal joints completely, and perform when exposed to very hot and cold temperatures. Its corrosion inhibiting formula delivers lifetime corrosion protection. The cured adhesive can also help decrease NVH in the vehicle.
3Mâ„¢ Impact Resistant Structural Adhesive is available in 200 mL cartridges for smaller jobs, and in 450 mL cartridges for use with the 3Mâ„¢ Dynamic Mixing System.
About the 3Mâ„¢ Dynamic Mixing System
With the Dynamic Mixing System (DMS), 3M has created a method for mixing adhesives, sealers and fillers that saves time and helps ensure the proper mixing of two part for

Norton 66254414832 - 3" X 1/4" X 1/4" Vortex Rapid Blend Unified Wheel, 5am U2305, 40 Each
3M 61010, Green Corps Depressed Center Wheel, 24 4 in x 1/4 in x 3/8 in, 7010299200, 60 per case
Dynabrade 59339 Vacuum Cuff, 1", w/Groove
Dynabrade 79061 1/2" W x 24" L 60 Grit A/Z DynaCut Belt, 50/pack
Dynabrade 10843 DynaPen Reciprocating Tool, 14,000 SPM, 1/8" Collet
Dynabrade 01480 Vane Set (4pk)
Standard Abrasives 875709, HS Mini-Brush, 4-1/2 in x 2 in x 5/8-11 FB018 41-42 A CRS Medium Density, 7010369379
3M 76783, Cubitron II Hookit Cloth Disc 784F, 120+ XF-weight, 5 in x NH, Die 500X, 7100222757
Dynabrade 90368 3/4" W x 34" L 80 Grit A/O DynaCut Belt, 50/pack
Dynabrade 50267 4-1/2" Dia. Disc Backing Pad, 5/8"-11 Thread
3M 55992, Green Corps Depressed Center Grinding Wheel, T27 4-1/2 in x 1/4 in x 7/8 in, 36, 7000118599, 10 per case
Dynabrade 95886 Washers For Vacuum Shroud (57737)
Dynabrade 40320 Dynafile II Abrasive Belt Tool
3M 22408, Roloc Disc 361F, P100 YF-weight, TR, 1-1/2 in, Die R150S, 7000045101
3M 86992, Diamond Disc, 3" Roloc, 674W, 120 Mesh, TR, 7100143477, Box of 5
Dynabrade 61472 Raptor Vac Pneumatic Vacuum - Backpack Style, 1.5 Gallon
Dynabrade 61420 Raptor Vac Electric Portable Vacuum System
Dynabrade 91316 11-1/4" Dia. x 60 Grit A/O Non-Vacuum Hook-Face DynaCut Disc, 10/Box
Dynabrade 79898 8" Dynacut 400 Grit Extreme Orange Scalloped Edge Discs, 25 per box
Dynabrade 63210 36" (91 cm) W x 72" (183 cm) L Downdraft Sanding Table, 460 V (AC)
3M 20930, PSA Cloth Disc 348D, P120 X-weight, 1 in x NH, Die 100N, 7000118916
Dynabrade 78006 1/2" W x 12" L Coarse Non-Woven DynaBrite Belts, 10/pack
3M 62137, 332 Impact Safety Goggles 40650-00000-10, Clear Lens, 10 EA/Case, 7010340634 
