High-Temperature Durability in a Dead-Soft Form: 3M™ Aluminium Foil Tape 427

Q: What temperature can this tape withstand?

It handles short-term exposure to 260°C (500°F) , making it ideal for heat-intensive tasks.

Q: Can EKO-TECH provide die-cut parts using 3M™ 427?

Yes. We offer die-cutting and kiss-cutting for high precision formats, tailored to your specs.

The 3M™ Aluminium Foil Tape 427 is a premium-grade, dead-soft aluminum foil tape featuring a high-performance acrylic adhesive for demanding environments. Designed for lead-free soldering, EMI shielding, and high heat operations, it offers long-lasting adhesion even after exposure to temperatures up to 260°C (500°F).

At EKO-TECH, we transform this high-performance tape into custom-converted formats that fit your production workflow perfectly. Whether you’re in electronics, aerospace, or industrial manufacturing, our precision converting ensures better efficiency, less waste, and faster application.

Where to Use 3M™ Aluminium Foil Tape 427

Flexible Printed Circuits (FPC): Heat shielding and EMI protection during reflow
Automotive & Underhood Assemblies: Temporary masking and thermal reflection
Aerospace & Defense: Plating and heat treatment masking
HVAC & Ducting Systems: Sealing and patching of insulation materials
Electronic Assembly Lines: Lead-free solder reflow up to 260°C
Metal Bonding & HSE Substrates: Strong adhesion on high-surface-energy metals

Why Choose 3M™ Aluminium Foil Tape 427?

Extreme Heat Resistance: Short-term exposure up to 500°F (260°C)
Excellent Adhesion Strength: Bonds well to metals, plastics, and laminates
Dead-Soft Aluminum Backing: Ideal for conforming to curved or irregular surfaces
Low Outgassing & Clean Finish: Suitable for electronics and cleanrooms
Outstanding Holding Power: Resists lifting or peeling during processing
Versatile: Works well across industries and production settings

Why Partner with a 3M Select Converter Like EKO-TECH?

Working with a 3M Select Converter means quality, expertise, and innovation. At EKO-TECH, we offer engineering-grade converting, ensuring the 3M™ Aluminium Foil Tape 427 is delivered to you in the most functional format for your application.

With EKO-TECH, you get:

Verified 3M converting standards
Flexible MOQ and custom order formats
Rapid prototyping and consulting support
ISO-certified production with consistent output
Reliable EU-wide logistics and technical assistance

Converting Options for 3M™ Aluminium Foil Tape 427 at EKO-TECH

We deliver precise, production-ready formats that reduce manual handling and increase process control:

Rewinding to individual lengths for line-ready rolls
Slitting to custom widths for narrow or wide applications
Sheeting for manual placement or automated feeders
Die & Kiss Cutting – from simple shapes to complex designs
Cross-Wound Spooling – ideal for continuous processing setups

Every format is engineered to match your needs and designed for optimal material usage.

Recognized Standards and Certifications

This tape is UL Recognized to UL 746C and Classified to UL 723 “L” for low flammability, ensuring compliance with industry safety standards. Additionally, it meets the requirements of L-T-80C and F.A.R 25.853(a), supporting its use in various specialized and regulated environments.

Temperature Use Range

3M™ Aluminum Foil Tape 427 is designed to perform reliably in temperatures ranging from -65°F to 300°F (-54°C to 149°C), making it an ideal choice for applications requiring both low and high-temperature performance.

Choose 3M™ Aluminum Foil Tape 427 for a versatile, reliable, and high-performing solution that meets your toughest challenges in temperature-sensitive and chemically demanding environments.

Technical data

Adhesive Type Acrylic
Application Painting & Depainting, EMI RFI Shielding of Seams, Sealing Plate Edges Against Solvent Penetration, Shielding From Engine Heat
Back Side Adhesive Thickness 1.8 mil
Back Side Adhesive Thickness 0.05 mm
Backing (Carrier) Material Aluminum Foil
Backing (Carrier) Thickness 2.8 mil
Backing (Carrier) Thickness 0.07 mm
Backing Material Aluminum Foil
Brands 3M™
Elongation at Break 6.0 %
Industries Aerospace, Automotive, Specialty Vehicle, General Industrial, Military & Government, Transportation, Construction, Appliance, Electronics, Metalworking, Military

Maximum Operating Temperature 149 ℃
Maximum Operating Temperature 300 ℉
Minimum Operating Temperature -54 ℃
Minimum Operating Temperature -65 ℉
Primary Liner Easy Release Film
Primary Liner Thickness 3.1 mil
Primary Liner Thickness 0.08 mm
Product Color Silver Shelf Life 24 Month, 24 none
Smallest Saleable Unit Roll
Specifications Met FAR 25.853(a)
Tensile Strength 49 N/100mm, 49 N/100mm, 490 N/cm
Total Tape Thickness without Liner 4.6 mil
Total Tape Thickness without Liner 0.12 mm
Units per Case 1.0, 8.0, 24.0, 48.0

Overall Length 60 yd, 60.14 yd, 180 yd, 360 yd
Overall Length 54.86 m, 54.9 m, 55 m, 164.59 m, 329.184 m
Overall Width 1 in, 1.75 in, 1.96 in, 1.968 in, 2 in, 2.5 in, 3 in, 4 in, 5.9 in, 6 in, 6.5 in, 8 in, 9 in, 10 in, 12 in, 13 in, 15.6 in, 16 in, 18 in, 19 in, 21 in, 23.79 in, 24 in, 30 in, 38 in, 48 in
Overall Width 2.5 mm, 25.4 mm, 30.5 mm, 33 mm, 44.45 mm, 50 mm, 50.8 mm, 63.5 mm, 76.2 mm, 101.6 mm, 150 mm, 152.4 cm, 165.1 mm, 203.2 cm, 228.6 mm, 254 mm, 305 mm, 400 mm, 406.4 mm, 457.2 mm, 482.6 mm, 533.4 mm, 609.6 mm, 610 cm, 762 mm, 965.2 mm, 1219.2 mm