Durable and Dependable
We engineer 3M Fibre Disc 381C by adhering aluminum oxide mineral to a fibre backing. The closed coat construction on 3M Fibre Disc 381C means mineral grains cover nearly 100% of the backing, so the abrasive is durable under pressure. The stiff fibre backing is extremely durable, withstanding wear, while standing up to tough applications like beveling.
Tips for Optimal Use
Altogether, fiber discs are durable abrasive discs that deliver a fast cut for grinding and weld removal, and they come in a range of sizes to correspond to large or small welds. Fiber discs also work well for blending (creating a smooth surface after weld removal) and provide a consistent finish over the workpiece. These discs may be used with portable tools, facilitating easier access with the workpiece. For optimal performance, the disc should be used with a face plate of the appropriate density for the application – a lighter density face plate for finer grade applications and a harder density face plate for more coarse grinding applications. Using the correct face plate for the application ensures that the abrasive mineral will re-sharpen, maximizing the life of the abrasive.
Good for General Purpose Metalworking
When it comes to our 3M Fibre Disc product offerings, we recommend operators choose the performance level suited to their unique project needs. 3M Fibre Disc 381C offers an economical solution for a general purpose metalworking disc, because it can perform well on a variety of projects without sacrificing performance. Given its versatility, you’ll find the 3M Fibre Disc is applicable in many markets, as evidenced by its use in the marine and metalworking industries as well as in maintenance and repair operations. 3M Fibre Disc 381C is a great multi-purpose disc that’s good to have on hand.

Dynabrade 11399 Type 27 Wheel Mounting Adapter Kit
Dynabrade 54972 Vane Set (5pk)
Dynabrade 01185 Vane Set (4pk)
Dynabrade 18570 Vane Set (4pk)
3M 08019, Marine Grade Silicone Sealant, Clear, 3 oz Tube, 7000120480, 6/Case
Dynabrade 11395 Guide Wheel
Dynabrade 14230 Rubber Drive Wheel
3M 85492, Scotch Foil Tape 3311-10A, 2.0 in x 10 yd (50.8 mm x 9,1 m), 7010383663
3M 95326, Venture Tape Non-Adhesive ASJ Facing 1541, White, 23 1/2 in x 200 yd, 7010314264
Dynabrade 11352 Contact Wheel Ass'y, 5/16" Dia. x 5/8" W x 1/4" I.D., Crown Face, Steel
3M 22393, Roloc Disc 361F, 36 YF-weight, TR, 3 in, Die R300V, 7000045093
ACS Diamond Cloth Belt, CX1250 3" X 30" 45U
Dynabrade 96101 Dynabrade Air Lube 10W/NR 24 Per Box
3M 11412, Roloc Disc 361F, 36 YF-weight, TR, 1 in, Die R100N, 7000045092
Dynabrade 56106 5" Dia. Non-Vacuum Disc Pad, Vinyl-Face
Dynabrade 52474 Vane Set (4pk) 
