3M 346

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Description for 3M 346

A heavy duty natural colored flat stock paper tape for indoor and outdoor protection of many metals, plastics and materials in transit and features a heavy duty weather resistant backing.

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Application Type	Bond
1 Part or 2 Part	1-Part
Material Form	Protective Tape
Substrate	Copper, Metal, Plastics, Steel, Windows, Brass
Industry	Protection of boat deck surfaces, Protection of aircraft windows, Outdoor motors, Protection of aircraft surfaces, Protection of aircraft parts, Protection of aircraft wings
Manufacturer	3M
Chemistry	Rubber
Cure Method	Pressure Sensitive
Application Temperature (°F)	60 to 100
Color	Tan

Best Practices for 3M 346

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Technical Data for 3M 346

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Overview

Application Type
- Adhesive - Bond
1 Part or 2 Part
- 1-Part
Material Form
- Tape - Protective Tape
Substrate
- Metal
- Copper
- Steel
- Brass
- Plastic - Plastics
- Wood - Windows
Industry
- Marine - Protection of boat deck surfaces
- Aerospace Window - Protection of aircraft windows
- Aircraft - Protection of aircraft surfaces, Protection of aircraft wings, Protection of aircraft parts
- Industrial
- Motors - Outdoor motors
- Other - Protection of interior cabin surfaces, Steel tank protection during fabrication/welding
Chemistry
- Other - Rubber
Cure Method
- Pressure Sensitive (min) - Pressure Sensitive
Color
- Brown - Tan

Specifications

Cure Specs

Application Temperature (°F)	60 to 100

Bond Strength

General Bond Strength (psi)	22 (oz./in.)	Test Method
Tensile Strength (psi)	28 (lbs./in.)	Test Method

Material Resistance

Abrasion Resistance	abrasion resistance
Moisture/Humidity Resistance	moisture resistant

Hardness

Elongation (%)	4	Test Method

Business Information

Shelf Life Details	Storage: Store in a clean, dry environment between 60-80°F (15-27°C) and 40-50% relative humidity.
Shelf Life Temperature (°F)	140 to 176
Shelf Life Type	From date of manufacture.
Shelf Life (mon)	12

Not Good For

Don't Use For	Not designed for paint masking or sand blast operations

Best Practices for 3M 346

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1. Surface Preparation
  
  The surface to which tape is to be applied should be clean and free of all traces of oil and moisture.
2. Testing
  
  Test for clean removal on all anodized aluminum surfaces. Improper sealing of surface causes adhesive transfer
Comparable Materials for 3M 346

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Spec Engine^® Results
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