3M™ Heavy Duty Protective Tape 346 is a rugged surface protection tape designed to protect metals, plastics, and materials during fabrication, storage, and shipping. Featuring a thick flat paper backing and rubber adhesive, it provides durable protection against abrasion, moisture, and handling damage.
This tape is engineered for applications where temporary surface protection is critical, offering reliable adhesion while allowing clean removal after extended use (up to 6 months under most conditions). Its heavy-duty backing resists wear while filtering UV exposure, making it suitable for both indoor and outdoor applications.
3M 346 is widely used in manufacturing, transportation, and industrial environments to protect surfaces from damage during processing and transit.