3M 431

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Description for 3M 431

A 2-mil nominal dead soft aluminum foil with transparent acrylic adhesive for many permanent sealing, holding, splicing or masking applications requiring the protection offered by a foil backing.

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Application Type	Adhesion, Masking, Sealing
1 Part or 2 Part	1 Part
Material Form	Tape
Substrate	Steel
Industry	Splicing, General purpose holding indoors, Seal in truck trailers, Seal in truck trailers, General purpose holding outdoors, Patch tears in truck trailers, Patch tears in truck trailers
Manufacturer	3M
Chemistry	Acrylic
Cure Method	Pressure Sensitive
Color	Shiny silver
High Temperature Resistance (°C)	149
Low Temperature Resistance (°C)	-54
Key Specifications	Meets requirements of F.A.R. 25.853(a); U.L. 723, Class “L” low flammability rating (File R 7311)

Best Practices for 3M 431

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Technical Data for 3M 431

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Overview

Application Type
- Adhesive - Adhesion
- Masking
- Sealant - Sealing
1 Part or 2 Part
- 1 Part or 2 Part - 1 Part
Material Form
- Tape
Substrate
- Steel
Industry
- Trucks - Seal in truck trailers, Patch tears in truck trailers
- Trailer - Patch tears in truck trailers, Seal in truck trailers
- Splicing
- General Purpose - General purpose holding indoors, General purpose holding outdoors
- Other - Holding, Many permanent sealing, Masking applications, Patching indoors, Patching outdoors, Sealing applications indoors, Sealing applications outdoors, Other outdoor equipment, Decorative
Chemistry
- Acrylic
Cure Method
- Pressure Sensitive (min) - Pressure Sensitive
Color
- Gray - Shiny silver
Key Specifications
- UL (Underwriters Laboratory), ULC (Underwriters Laboratories of Canada), NFPA (National Fire Protection Association) - Meets requirements of F.A.R. 25.853(a); U.L. 723, Class “L” low flammability rating (File R 7311)

Specifications

Cure Specs

Application Temperature (°F)	>32

Bond Strength

General Bond Strength (psi)	41 (oz./in.)	Test Method
Tensile Strength (psi)	19 (lbs./in.)	Test Method

Material Resistance

Flame Resistance	Flame resistant
High Temperature Resistance (°C)	149
Low Temperature Resistance (°C)	-54

Hardness

Elongation (%)	5	Test Method

Business Information

Shelf Life Details	Storage: Store under normal conditions of 60° to 80°F (16° to 27°C) and 40 to 60% R.H. in the original carton., To obtain best performance, use this product within 24 months from date of manufacture.
Shelf Life Temperature (°F)	60 to 80
Shelf Life Type	From date of manufacture
Shelf Life (mon)	24

Not Good For

Don't Use For	Tape is not intended for medical usage, Neither 3M nor the Food and Drug Administration have evaluated or reviewed this tape for medical application.
Don't Use With	chlorine or other strong oxidizing materials

Best Practices for 3M 431

*See Terms of Use Below
1. Surface Preparation
  
  Best results attained when applied to clean dry surface above 32°F (0°C).
Comparable Materials for 3M 431

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Spec Engine^® Results
- 853(3M)
  It is comprised of strong, thin polyester backing with high shear, solvent resistant acrylic adhesive.
- 7952MP(3M)
  Excellent resistance to harsh environments, this adhesive can withstand splashes of organic solvents, weak acids and bases and salt water, cleaning solutions, germicidals, disinfectants, oils, etc. In addition, it performs well after exposure to humidity and hot/cold cycles.
- Adhesive Transfer Tape 9485PC(3M)
  Ideal for very high bond strength to most surfaces.
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