3M Aluminum Foil Tape 427

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Description for 3M Aluminum Foil Tape 427

An acrylic adhesive, combined with the durable aluminum backing, offers ideal properties for long serviceable life in and outdoors. Aluminum backing provides excellent reflection of both heat and light.

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Application Type	Bond, Sealant
Material Form	Tape
Substrate	Steel
Industry	Aircraft paint stripping maskant, Splicing of thin gauge foils, Repair tears on truck trailers, General purpose heat reflector, Repair tears on truck trailers, Repair tears on aircraft, General purpose holding applications-Outdoor, General purpose heat dissipater, General purpose patching applications-Indoor, General purpose sealing applications-Indoor, General purpose holding applications-Indoor, General purpose sealing applications-Outdoor, General purpose patching applications-Outdoor
Manufacturer	3M
Chemistry	Acrylic Adhesive
Cure Method	Pressure Sensitive
Color	Shiny silver
High Temperature Resistance (°C)	149
Low Temperature Resistance (°C)	-54
Durability	Durable
Light Refractive Index (RI)	Excellent Reflection of Light
Key Specifications	UL (Underwriters Laboratory), ULC (Underwriters Laboratories of Canada), NFPA (National Fire Protection Association): Meets U.L. 746C (File E 122798) and 723, Class “L” low flammability rating (File R 7311, ANSI (American National Standards Institute): UL 723 Class “L” low flammability rating (File R 7311) Can be certified to meet L-T-80C, Meets requirements of F.A.R. 25.853(a)

Best Practices for 3M Aluminum Foil Tape 427

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Technical Data for 3M Aluminum Foil Tape 427

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Overview

Application Type
- Adhesive - Bond
- Sealant
Material Form
- Tape
Substrate
- Steel
Industry
- Trucks - Repair tears on truck trailers
- Trailer - Repair tears on truck trailers
- Aircraft - Aircraft paint stripping maskant, Repair tears on aircraft
- Industrial
- Splicing - Splicing of thin gauge foils
- General Purpose - General purpose heat reflector, General purpose holding applications-Outdoor, General purpose heat dissipater, General purpose sealing applications-Indoor, General purpose patching applications-Indoor, General purpose holding applications-Indoor, General purpose sealing applications-Outdoor, General purpose patching applications-Outdoor
- Appliances - Moisture barrier in “white goods” appliances, Mechanically hold wires in “white goods” appliances, Mechanically hold wires and cooling coils in “white goods” appliances
Chemistry
- Acrylic - Acrylic Adhesive
- Tape Backing - Dead soft aluminum foil
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)
- UL (Underwriters Laboratory), ULC (Underwriters Laboratories of Canada), NFPA (National Fire Protection Association): 746C - Meets U.L. 746C (File E 122798) and 723, Class “L” low flammability rating (File R 7311
- ANSI (American National Standards Institute): ANSI/UL 723 - UL 723 Class “L” low flammability rating (File R 7311) Can be certified to meet L-T-80C

Specifications

Bond Strength

Peel Strength (piw)	5.5 N/cm	Test Method
Tensile Strength (psi)	49 N/cm	Test Method

Tape Properties

Total Thickness (mil)	5
Single Sided	Single Sided

Material Resistance

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

Hardness

Durability	Durable
Elongation (%)	6	Test Method

Other Properties

Light Refractive Index (RI)	Excellent Reflection of Light

Business Information

Shelf Life Details	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	Medical application

Best Practices for 3M Aluminum Foil Tape 427

*See Terms of Use Below
1. Surface Preparation
  
  Best results obtained when applied to a clean, dry surface above 32°F (0°C).
Comparable Materials for 3M Aluminum Foil Tape 427

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Spec Engine^® Results
- 9472LE(3M)
  Provides high bond strength to most surfaces, including many low surface energy plastics such as polypropylene and powder coated paints.
- Aluminum Foil Tape 439(3M)
  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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