3M™ Single-Sided Foam Tapes

Engineered for Performance – 3M™ 4108 Single-Coated Urethane Foam Tape

Q: Do you support small batch or prototyping orders?

Yes. As a flexible converter, we support both low-volume prototypes and high-volume production runs .

Q: What are the most common converting formats for this tape?

We frequently deliver custom slit rolls , die-cut parts , sheets , and cross-wound spools , tailored to specific production processes.

Q: Can it be used with metals?

Absolutely. It delivers excellent adhesion to HSE metals such as aluminum and stainless steel.

Q: Is 3M™ 4108 suitable for die-cutting?

Yes! Its urethane foam and stable liner make it ideal for precision die and kiss cutting .

Q: What temperatures can 3M™ 4108 withstand?

This tape handles short-term heat exposure up to 500°F (260°C) , making it suitable for high-temperature assembly environments.

The 3M™ 4108 Single-Coated Urethane Foam Tape stands out as a high-performance solution engineered for challenging environments, especially where high temperature resistance, durability, and dimensional stability are essential. With its clear, pressure-sensitive adhesive, and the ability to withstand short-term exposure to 500°F (260°C), this foam tape is ideal for demanding applications such as FPC (Flexible Printed Circuit) attachment and bonding to high surface energy (HSE) metals.

As an expert 3M Select Converter, 921 XLo-Tech elevates this advanced tape solution by offering full converting capabilities: rewinding, slitting, sheeting, kiss-cutting, and cross-wound spooling—tailored precisely to your application.

Key Applications of 3M™ 4108 Single-Coated Urethane Foam Tape

Flexible Printed Circuit (FPC) Attachments
Bonding to High Surface Energy (HSE) Metals
Automotive Underhood Components
Electronics & PCB Assembly
Heat-Intensive Processing Environments
Thermal Management and Vibration Damping

Why Choose 3M™ 4108 Urethane Foam Tape? – Benefits Overview

High Temperature Tolerance: Withstands brief exposures up to 260°C (500°F), perfect for lead-free solder reflow.
Strong Adhesion: Maintains high bonding strength even at elevated temperatures.
Low Outgassing: Ideal for sensitive electronics or clean manufacturing zones.
Dimensional Stability: Ensures consistent performance during converting and application.
Clear Adhesive: Offers aesthetic and functional clarity in precision electronics.

Converter Benefits – Why Partner with a 3M Select Converter like 921 XLo-Tech

Partnering with 921 XLo-Tech—a certified 3M Select Converter—means working with a team of experts who understand both materials science and precision manufacturing.

Application-Centric Design Support
ISO-Certified Quality Systems
Short Lead Times & Scalable Volume Production
Access to a Broad 3M Portfolio
Expertise in High-Temp & Technical Conversions

Advanced Converting Capabilities – Tailored for 3M™ 4108 Tape

As a trusted solutions partner, 921 XLo-Tech offers specialized converting services designed to optimize the performance and integration of 3M™ 4108:

Rewinding – Customized roll lengths for specific line setups
Slitting to Width – Precision slitting from full rolls to narrow widths
Sheeting – Cut-to-size sheets for fast assembly workflows
Die & Kiss Cutting – Custom die shapes for easy peel-and-stick application
Cross-Wound Spooling – Continuous runs for automation and minimal changeover

Technical data

Adhesive Type Acrylic
Application Window and Door Glazing, Sealing
Backing (Carrier) Material Urethane
Backing (Carrier) Thickness (Imperial) 125 mil
Backing (Carrier) Thickness (Metric) 3.2 mm
Brands 3M™
Density (Imperial) 16 lb/ft³
Density (Metric) 256 kg/m³
Foam Type Firm
Indoor/Outdoor
Industries Specialty Vehicle, Transportation, General Industrial, Appliance, Construction
Maximum Operating Temperature 93 ℃

Maximum Operating Temperature (Fahrenheit) 200 ℉
Minimum Operating Temperature (Celsius) -18 ℃
Minimum Operating Temperature (Fahrenheit) 0 ℉
Number of Adhesive Sides Single-sided
Primary Liner Silicone Treated Paper
Primary Liner Color White
Primary Liner Thickness (Imperial) 3 mil
Primary Liner Thickness (Metric) 0.08 mm
Product Color Natural
Shelf Life 24 Month
Smallest Saleable Unit Roll

Tensile Strength (Imperial) 130.0 lb/in
Tensile Strength (Metric) 895 kPa
Total Tape Thickness without Liner (Imperial) 125 mil
Total Tape Thickness without Liner (Metric) 3.2 mm
Units per Case 2.0, 3.0, 6.0, 9.0, 12.0, 18.0
Overall Length (Imperial) 36 yd
Overall Length (Metric) 32.9 m, 32.91 m
Overall Width (Imperial) 0.5 in, 0.75 in, 1 in, 2 in, 3 in, 4 in
Overall Width (Metric) 1.3 mm, 2.5 mm, 19.05 mm, 50.8 mm, 76.2 cm, 101.6 cm

Downloads

FAQ

Do you support small batch or prototyping orders?Monika Kluk2025-06-16T08:51:57+02:00

Do you support small batch or prototyping orders?

Yes. As a flexible converter, we support both low-volume prototypes and high-volume production runs.

What are the most common converting formats for this tape?Monika Kluk2025-06-16T08:50:44+02:00

What are the most common converting formats for this tape?

We frequently deliver custom slit rolls, die-cut parts, sheets, and cross-wound spools, tailored to specific production processes.

Can it be used with metals?Monika Kluk2025-06-16T08:49:22+02:00

Can it be used with metals?

Absolutely. It delivers excellent adhesion to HSE metals such as aluminum and stainless steel.

Is 3M™ 4108 suitable for die-cutting?Monika Kluk2025-06-16T08:48:09+02:00

Is 3M™ 4108 suitable for die-cutting?

Yes! Its urethane foam and stable liner make it ideal for precision die and kiss cutting.

What temperatures can 3M™ 4108 withstand?Monika Kluk2025-06-16T08:46:55+02:00

What temperatures can 3M™ 4108 withstand?

This tape handles short-term heat exposure up to 500°F (260°C), making it suitable for high-temperature assembly environments.

Products in the same category:

Eko-Tech Converting Company - 4104-_produkt-list

3M™ 4104

3M™ 4108

3M™ 4116

3M™ 4314

3M™ 4317

3M™ 4318

3M™ 4504

3M™ 4508

3M™ 4516

3M™ 4714

3M™ 4718

3M™ 4726

Start Your Project with Confidence – Request a Custom Quote for 3M™ 4108 Today!

Unlock the performance of 3M™ 4108 Single-Coated Urethane Foam Tape with custom converting by 921 XLo-Tech. Whether you’re developing the next electronics innovation or need robust bonding for industrial processing, we’re ready to deliver a tailored solution. Contact Us Now to speak with a technical expert or request your custom sample.