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SKU 7000048508
Legacy SKU 70006092194
UPC 00021200609091
Catalog Number 346
Product Number 346

3M Heavy Duty Protective Tape 346 is a natural colored flat stock paper tape to preserve product value by protecting surfaces on a variety of metals, plastics and other materials from abrasion and moisture for extended periods of time.

  • Heavy flat stock tape provides abrasion and moisture resistance to protect product value
  • Specially formulated rubber adhesive is stain and transfer resistant and long aging to help reduce clean up
  • Stable adhesive can be used up to 6 months outdoors and still provide reasonably clean removal under most conditions
  • Long aging adhesive can be used up to 6 months nd still provide reasonably clean removal under most conditions
  • Rubber adhesive is stain and transfer resistant to protect underlying surfaces
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On it's way to you August 28  


Minimum Order 1 Roll
Order Increment 1 Roll
  Superior Surface Protection
  Versatile Across Industries
  Industry Low Price Per Roll
Product Dimensions
Imperial Metric
Weight 0 NULL
Width 0 null
Length 0 null
Height 0 null
Thickness 16.7 mil
Shipping Dimensions
Weight 48.99994 lb
Length 49.37008 in
Width 9.6063 in
Height 10.3937 in
Color Tan


  1. What is the purpose of 3M™ Heavy Duty Protective Tape 346?

    The main purpose of this tape is to provide high-performance protection and abrasion-resistance for difficult applications, such as heavy machinery or industrial equipment.

  2. How does this tape compare with other tapes in terms of durability?

    This tape boasts a thick construction that features an extremely durable polyethylene backing, making it ideal for demanding surfaces and harsh environments. It’s also resistant against UV light which helps prevent yellowing over time.

  3. Can this tape be used outdoors?

    Yes! Thanks to its advanced adhesive technology, this product offers both excellent adhesion and holding power even when exposed to direct sunlight or fluctuating temperature changes caused by weather conditions.

For industrial/occupational use only. Not for consumer sale or use.
3M industrial and occupational products are intended, labeled, and packaged for sale to trained industrial and occupational customers for workplace use.  Unless specifically stated otherwise on the applicable product packaging or literature, these products are not intended, labeled, or packaged for sale to or use by consumers (e.g., for home, personal, primary or secondary school, recreational/sporting, or other uses not described in the applicable product packaging or literature), and must be selected and used in compliance with applicable health and safety regulations and standards (e.g., U.S. OSHA, ANSI), as well as all product literature, user instructions, warnings, and other limitations, and the user must take any action required under any recall, field action, or other product use notice.  Misuse of 3M industrial and occupational products may result in injury, sickness, death, or property damage.  For help with product selection and use, consult your on-site safety professional, industrial hygienist, or other subject matter expert.
Product Description: 3M™ Heavy Duty Protective Tape 346

The 3M™ Heavy Duty Protective Tape 346 is a versatile tape suitable for both indoor and outdoor use. It features a thick backing and specially formulated rubber adhesive that provides a strong bond and clean removal, safeguarding various surfaces for up to 6 months in outdoor conditions. The heavy paper backing also filters damaging UV rays, providing an added element of protection.

This tape is an economical way to shield many metals, plastics, and materials in transit from costly surface damage. It is a useful asset for aerospace, military, marine, specialty vehicle, transportation, automotive, metal fabrication, and other industrial environments.

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, and 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)
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