Heavy-duty protective tape with rubber adhesive for surface protection against abrasion and moisture, ideal for industrial applications including aerospace, automotive, and marine industries with up to 6 months outdoor durability.
3M™ Heavy Duty Protective Tape 346 is a premium natural-colored flat stock paper tape designed to preserve product value by protecting surfaces on a variety of metals, plastics, and other materials from abrasion and moisture damage for extended periods of time. This industrial-grade protective tape features a specially formulated rubber adhesive that provides superior stain and transfer resistance while maintaining long-term aging stability. The heavy paper backing effectively filters damaging UV rays, offering an added layer of protection for both indoor and outdoor applications.
Suitable for both indoor and outdoor use, the thick backing and specially formulated rubber adhesive provide a strong bond with clean removal capability to safeguard various surfaces for up to 6 months in outdoor conditions. The stable adhesive can be used for extended periods and still provide reasonably clean removal under most conditions, making it an economical solution for protecting metals, plastics, and materials in transit from costly surface damage. This versatile tape is an essential asset for aerospace, military, marine, specialty vehicle, transportation, automotive, metal fabrication, and other industrial environments.
The tape's applications include protection of boat deck and interior cabin surfaces during building and refurbishing, steel tank protection during fabrication and welding, aircraft parts and surfaces protection during maintenance and shipping, and general indoor and outdoor protection of metals and plastics. With its proven performance and reliability, 3M™ Heavy Duty Protective Tape 346 delivers exceptional value for industrial operations requiring dependable surface protection solutions.
Key Features
- Heavy flat stock paper backing provides superior abrasion and moisture resistance
- Specially formulated rubber adhesive with stain and transfer resistant properties
- Long-term aging stability for clean removal up to 6 months outdoors
- UV ray filtering protection from heavy paper backing
- Suitable for both indoor and outdoor industrial applications
Technical Specifications
| Specification |
Value |
| Part Number | 346 |
| Adhesive Type | Rubber |
| Backing Material | Flat Stock Paper |
| Width | 24 inches (609.6 mm) |
| Length | 60 yards (54.9 meters) |
| Overall Thickness | 16.7 mil (0.424 mm) |
| Backing Thickness | 15 mil (0.38 mm) |
| Adhesive Thickness | 15.748 mil (0.4 mm) |
| Adhesion Strength | 22 oz/in (24 N/100mm) |
| Tensile Strength | 28 lb/in (49 N/100mm) |
| Elongation at Break | 4% |
| Shelf Life | 12 months |
| Outdoor Durability | Up to 6 months with clean removal capability |
| Unit of Sale | 1 Roll per Case |
| UPC | 00021200054204 |
| 3M ID | 7000001164 |
| Industries | Automotive, Metalworking, Military & Government, Specialty Vehicles, Transportation |
| Brand | 3M™ |
| Color | Tan/Natural |
| Application | Surface Protection |
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