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

Dynabrade 51634 .1 hp Straight-Line Pencil Grinder, Central Vacuum, 60,000 RPM, 3mm Collet
Dynabrade X3161H - 3" Mini Extreme & 6" Extreme Random Orbital Sander, with Hook Pad, Non Vac, Combo Kit 12,000 RPM, 3/16" Dia., Rear Exhaust
Dynabrade 94980 1/4" Composite-Style Coupler, 1/4" Male
Dynabrade 57895 Pad Base- Mini Dynabug
Dynabrade 91538 5" Dynacut Extreme Orange Premium Film Disc, 120 Grit, Hook & Loop, Vacuum Holes, 50/Box
Dynabrade 80462 Motor, 120V/60Hz
Dynabrade 15030 Contact Arm Assembly, 5/16" Dia. x 3/8" W, Steel Wheel, with 1/2" W Platen
Dynabrade 79888 5" Dynacut 400 Grit Extreme Orange Scalloped Edge, 50 per box
Dynabrade 52292 - .7 hp 7 Degree Offset Die Grinder, 15,000 RPM, 1/4" Collet
Dynabrade 91716 DynaMesh 5" 180 Grit Hook & Loop Discs, 50 per box
Dynabrade 79844 DynaSpark ZA SS 5" x 1/4" x 7/8" T27 Grinding Wheel, Box of 10 Discs
Dynabrade 15108 Knob Assembly
Dynabrade 82580 1/2" W x 24" L 120 Grit Ceramic DynaCut Belt, 50/pack
Dynabrade 78690 D9 Cartridge Roll Mandrel 1/8" Pilot Dia. x 1" Pilot Length, 1/4" Shank Dia. x 1-1/4" Shank Length
Dynabrade 22090 2-3/4" x 5" Hand Sanding Block
Dynabrade 64654 48" (122 cm) W x 96" (422 cm) L Downdraft Sanding Table, 460 V (AC)
Dynabrade 15002 Vacuum Mini-Dynafile II Abrasive Belt Tool
Dynabrade 56234 8" Dia. Non-Vacuum Disc Pad, Vinyl-Face
3M 36850, Dirt Trap Protection Material, White, 6 in x 300 ft, 7100132342
Dynabrade 52676 1 hp Straight-Line 6" (152 mm) Extension Die Grinder, Rear Exhaust, 12,000 RPM, 1/4" Collet
Dynabrade 91248 8" Dia. x 320 Grit A/O Vacuum PSA DynaCut Disc, 25/Box
3M 07333, Impact Resistant Structural Adhesive, 200 mL Cartridge, 7100050351, 3 percase 
