3M Aluminum Foil Tape 425

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Description for 3M Aluminum Foil Tape 425

It is 3 mil nominal dead soft aluminum foil backing with a transparent acrylic adhesive, offers sealing applications – indoors and out, maskant in electroplating of aluminum, good sealant.

*See Terms of Use Below

Application Type	Bond, Sealant
Material Form	Tape
Substrate	Steel
Industry	Maskant in electroplating of aluminum, General purpose heat reflector, Splicing of thin gauge foils, Mechanically hold cooling coils in “white goods” appliances., Repair tears on truck trailers, Repair tears on truck trailers, Aircraft paint stripping maskant, General purpose holding, Repair tears on aircraft
Manufacturer	3M
Chemistry	Acrylic Adhesive
Cure Method	Pressure Sensitive
Application Temperature (°F)	>32
Color	Shiny silver, Transparent
Total Thickness (mm)	0.117
Single Sided	Single sided
High Temperature Resistance (°C)	149
Low Temperature Resistance (°C)	-54
Durability	Durable
Light Refractive Index (RI)	Excellent Reflection of Light
Key Specifications	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), 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

Best Practices for 3M Aluminum Foil Tape 425

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Technical Data for 3M Aluminum Foil Tape 425

*See Terms of Use Below

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
- Electronics - Maskant in electroplating of aluminum
- Coils - Mechanically hold cooling coils in “white goods” appliances.
- Industrial - Indoor sealing applications, Outdoor sealing applications
- General Purpose - General purpose heat reflector, General purpose holding
- Splicing - Splicing of thin gauge foils
- Appliances - Moisture barrier in “white goods” appliances., Mechanically hold wires in “white goods” appliances, Mechanically hold cooling coils in “white goods” appliances.
- Other - Heat dissipator, Patching
Chemistry
- Acrylic - Acrylic Adhesive
Cure Method
- Pressure Sensitive (min) - Pressure Sensitive
Color
- Clear / Transparent - Transparent
- 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)
- 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
- 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

Specifications

Cure Specs

Application Temperature (°F)	>32

Bond Strength

Peel Strength (piw)	5.1 (N/cm)	Test Method
Tensile Strength (psi)	28 (lbs./in.)	Test Method

Tape Properties

Total Thickness (mm)	0.117
Single Sided	Single sided
Tape Backing	Dead soft aluminum foil

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	Food and Drug, Not intended for medical usage

Best Practices for 3M Aluminum Foil Tape 425

*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 425

*See Terms of Use Below

Spec Engine^® Results
- 5925(3M)
  Black, closed-cell acrylic foam carrier • Very conformable • Good adhesion to many painted surfaces, including powder coated paint •Apply as low as 50°F (10°C) • UL 746C
- 850(3M)
  It can generally be used for splicing and applications where chemical resistance and/or clean removal is necessary.
- Aluminum Foil Tape 427(3M)
  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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