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

3M 55694, Stikit Film Disc w/Tab 375L, P180, 5 in x NH, Die 500X, 7100106554, 250 per case
Dynabrade 64206 33" (84 cm) W x 60" (152 cm) L Downdraft Sanding Table, 230 V (AC)
Dynabrade 79885 5" Dynacut 220 Grit Extreme Orange Scalloped Edge, 50 per box
Dynabrade 64201 33" (84 cm) W x 41" (104 cm) L Downdraft Sanding Table, 115 V (AC)
Dynabrade 95683 - 1-1/4" Dia. Hose Assembly
Dynabrade 79054 1/8" W x 24" L 80 Grit A/Z DynaCut Belt, 50/pack
Dynabrade 57804 3-2/3" W x 7" L Dynabug Orbital Sander, Central Vac-Ready, .24 HP, 8,000 RPM, 3/16" Orbit
Dynabrade 91435 1/4" W x 24" L 80 Grit A/O DynaCut Belt, 50/pack
3M 70147, Hookit Center Water Feed Disc Hand Pad, 3 in x 7/8 in, 7000045752
Dynabrade 56178 6" Dia. Vacuum Disc Pad, Vinyl-Face
Dynabrade 92114 1/2" W x 12" L 180 Grit A/O DynaCut Belt, 50/pack
Dynabrade 91246 8" Dia. x 220 Grit A/O Vacuum PSA DynaCut Disc, 25/Box
Dynabrade 92102 3" W x 10-11/16" L 80 Grit A/Z DynaCut Belt, 10/pack
Dynabrade 79149 1/2" W x 24" L 80 Grit Ceramic DynaCut Belts, 50/pack
Dynabrade 64208 33" (84 cm) W x 41" (104 cm) L Downdraft Sanding Table, 230 V (AC)
Dynabrade 43516 .4 hp 6" (152 mm) Dia. Extension Die Grinder, Rear Exhaust, 25,000 RPM, 1/4" Collet
Dynabrade 78167 1-1/4" Dia. x 180 Grit S/C Non-Vacuum PSA DynaCut Disc 25/pack
Dynabrade 56469 Exhaust Gasket
Dynabrade 54773 4" (102 mm) Dia. Extended Right Angle Type 27 Depressed Center Wheel Grinder, .7 HP, 12,000 RPM, 3/8"-24 Spindle
Dynabrade 79901 3-1/2" Dia. x 120 Grit A/O Non-Vacuum PSA DynaCut Disc, 100/box
Dynabrade 90268 3" W x 10-11/16" L 180 Grit A/O DynaCut Belt, 10/pack
Dynabrade 50307 4-1/2"- 5" Dia. Vertical Disc Sander, Rear Exhaust, 1.2 HP, 11,000 RPM, 5/8"-11 Thread
Dynabrade 56355 3" x 4-1/4" Non-Vacuum Dynabug II Pad, Vinyl-Face
Dynabrade 78055 1" W x 24" L Medium NWN DynaBrite Belt, 10/pack
Dynabrade 12205 Stockade Reciprocating Saw, .4 HP, 2,400 SPM
Dynabrade 52289 .7 hp 7 Degree Offset Die Grinder, Front Exhaust, Short Shank, 18,000 RPM, 1/4" Collet
3M 60894, Impact Stripping Tape 500, Green, 1 in x 10 yd, 36 mil, 9 Rolls/Case, 7000001170 
