We formulated our 3M Detector Loop Sealant 5000 specifically for protecting detector loop wires even in challenging roadway environments. We also designed this sealant to be extremely easy and cost-effective, both during and long after application.
Tough Yet Flexible
The sealant can be applied directly into the sawcut to form a durable tack free shell around detector loop wires without running into low spots, even on crowned or sloped roadways. It cures naturally in 24 hours, reacting with moisture in the environment to produce a rubber that resists weather, oils, gasoline, antifreeze, brake fluid and road salt. This tough, flexible material also prevents the wires from moving around as it keeps contaminants away from them, minimizing false calls.
The cured sealant presents a smooth surface across the sawcut so workers do not have to spend extra time finishing. It won’t degrade in high temperatures, fracture even at temperatures as low as -40° F, or shrink over time; this eliminates call-backs for refilling or additional repairs.

Dynabrade 14230 Rubber Drive Wheel
Dynabrade 54705 Rotor/Vane Set
3M 08500, All-Around Autobody Sealant, 1/10 gal Cartridge, 7000046622, 12 per case
Dynabrade 06085 Nut
Dynabrade 90924 3" Dia. x 40 Grit A/Z DynaCut Locking-Type (TR), Flap Disc, 10/pack
Dynabrade 51301 .5 hp Straight-Line Die Grinder
Dynabrade 91428 1/2" W x 12" L 60 Grit A/O DynaCut Belt, 50/pack
Dynabrade 52557 3" Dia. Right Angle Disc Sander
Dynabrade 95544 Gear Grease, 2.5oz. Tube
Dynabrade 18426 Vane Set (4pk)
Dynabrade 90405 1/8" W x 24" L 60 Grit A/O DynaCut Belt, 50/pack
Dynabrade 76008 - 6" (152 mm) Dia. Vinyl-Face Vacuum Pad 
