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 40208, Cloth Spiral Band 341D, P120 X-weight, 1 in x 1 in, 7100138144
3M 02140, Fibre Disc Backup Pad, TN Quick Change , 4-1/2 in x 5/8-11 Internal, 7000045746
3M 26102, PPS Series 2.0 Adapter, Type S16, 3/8 Female, 19 Thread BSP, 7100135934
3M 26120, PPS Series 2.0 Adapter, Type S28, 17.5 mm Female, 19 TPI
Thread, 7100135956
3M 95307, Lead Foil Tape 421, Dark Silver, 3/4 in x 36 yd, 6.3 mil, 7000049079
3M 01323, Stikit Gold Film Disc Roll, 6 in, P400 grade, 7010299141, 75 discs per roll
Insize 1150-500E, DIGITAL HEIGHT GAGE, 0-20"/0-500mm, 6928640355325
3M™ 72787, Calibration Kit 529-04-48, Large, 7000052154, 1 EA/Case 
