Suitable for both indoor and outdoor use, our thick backing and specially formulated rubber adhesive provide a strong bond and clean removal to safeguard various surfaces for up to 6 months in outdoor conditions. The heavy paper backing also filters damaging UV rays for an added element of protection. Our 3M™ Heavy Duty Protective Tape 346 provides an economical way to shield many metals, plastics and materials in transit from costly surface damage and is a useful asset for aerospace, military, marine, specialty vehicle, transportation, automotive, metal fabrication and other industrial environments.

Also available in an 18 inch roll
Application Ideas:
- Protection of boat deck and interior cabin surfaces during building, finishing and refurbishing
- Steel tank protection during fabrication and welding
- Protection of aircraft parts and surfaces (e.g., wings, windows, etc.) during maintenance, storage shipping
- Indoor and outdoor protection of metals and plastics
- Protection of materials in transit from abrasion damage caused by movement within shipping containers (e.g., outdoor motors)

3M 19795, Utility Cloth Roll 314D, P400 J-weight, 1-1/2 in x 20 yd, 7100081717
3M 80510, Roloc Disc 777F, P120 YF-weight, TR, 1 in, Die R100N, 7000045622
Standard Abrasives 42718, A/O Flexible Flap Wheel 625128, 3 in x 1/2 in x 1/4-20 in 120, 7010369139, 10 per case
Dynabrade 11475 Dynabelter Abrasive Belt Tool, Standard Duty
3M 50010, VentureClad Insulation Jacketing Tape 1577CW-WME, White, 99 mm x 13.7 m, 7010379907
3M 62606, Scotch-Weld Threadlocker TL42, Blue, 50 mL Bottle, 7100039193, 10/case
3M 02140, Fibre Disc Backup Pad, TN Quick Change , 4-1/2 in x 5/8-11 Internal, 7000045746
3M 62610, Scotch-Weld Threadlocker TL62, Red, 50 mL Bottle, 7100039196, 10/case
Dynabrade 92585 3-1/2" Dia. x Medium Hook-Face Surface Conditioning DynaBrite Disc, 10/pack
3M 34118, 663FC, 2" X 120", 70u, Diamond Trizact Belt 7010509077
Insize 6300, MICROMETER STAND, 6928640307294
3M 19768, Utility Cloth Sheet 314D, 9 in x 11 in P180 J-weight, 7000000356
3M™ 17323, Versaflo™ Respiratory Helmet Assembly M-407, with Premium Visor and Flame Resistant Shroud, 7000002395, 1 EA/Case 
