346, Heavy Duty Protective Tape, 3M, adhesive tape datasheet

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3M 346
Heavy Duty Protective Tape

General Information

346 is a 16.7mil, heavy duty natural colored flat stock paper tape. It can be used for indoor and outdoor protection of many metals, plastics and materials in transit. This product also features a heavy duty weather resistant backing.

Backing	Adhesive (unwind)	Thickness (total)	Liner Type (outer)
Flatback Paper	Rubber	16.70 mil

Adhesion to Steel 180° Peel	Adhesive Activation	Tensile Strength	Elongation Percent
22.00 oz/in	Pressure	28.00 lbs/in	4.00%

Min Application Temp	Min Service Temp	Max Short-Term Temp	Max Long-Term Temp
60 °F	0 °F

Adhesive Tape Features

Heavy flat stock backing is abrasion and moisture resistant
U.V. resistant
Rubber adhesive is stain and transfer resistant on most surfaces
Not designed for paint masking or sand blasting operations
Prolonged exposure to water and abrasion can cause backing to wear away
Not to be used on copper or brass, as staining can occur
Recommended for up to 6 months in outdoor applications
Does not offer clean removability on anodized aluminum surfaces
For best results tape should not be applied to surfaces below 60°F (15°C) or above 100°F (38°C)
Resists aging up to 6 months and still removes cleanly under most conditions

Adhesive Tape Applications

Protection of boat deck and interior cabin surfaces during building, finishing, refurbishing
Steel tank protection during fabrication/welding
Protection of aircraft parts and surfaces (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

Adhesive Tape Markets Served

Adhesive Tape Colors

Comparable products

3M 346

Heavy Duty Protective Tape

Backing	Adhesive	Thickness	Adhesion
Flatback Paper	Rubber	16.70mil	22.00oz/in

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Converting Services

Budnick Converting offers a number of services to take the product you need and make it perfect for your application. With converting methods ranging from precision slitting or die-cutting to printing and coating, Budnick has the capabilities to create anything you can dream up.

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The physical properties listed are typical values and are not to be considered as specifications. Our suggestions for use are based on tests we believe to be reliable. However, the purchaser must carry out their own tests to determine the suitability of the product for their internal use. Information is given in good faith, but without warranty.

It is essential, as with all pressure-sensitive tapes, that the surface to which the tape is applied be clean, dry and free of grease and oil.

Shelf life from date of manufacture is based on the product being stored at 70°F(21°C) / 50% relative humidity out of direct sunlight.

Specification compliance is dynamic and should only be used as a general guide. Always confirm that the tape you are interested in currently complies with all specification requirements. Please verify that the product number that you select is available in the proper size and color to meet your specification.