3M™ Single-Sided Foam Tapes

Count on 3M™ 4508 for Reliability

Q: In what formats can I receive this tape?

We supply in rolls, sheets, spools, or custom-cut pieces – tailored to your exact requirements.

Q: What is the tape’s thickness?

3M™ 4508 has a thickness of 3.2 mm , providing effective gap-filling and cushioning.

Q: Can the tape be die-cut?

Absolutely. The stable liner and dense foam enable precise die and kiss cutting .

Q: Is 3M™ 4508 suitable for high temperatures?

Yes – it offers short-term resistance up to 260°C (500°F) , making it ideal for soldering and heat-intensive environments.

3M™ 4508 Single-Coated Urethane Foam Tape is engineered for demanding thermal environments. With short-term resistance to 260°C (500°F), it’s ideal for lead-free soldering, flexible printed circuit (FPC) bonding, and applications across the electronics and automotive industries.

With 921 XLo-Tech, you get more than tape – you get a tailored solution through our expert converting capabilities:
rewinding, slitting, sheeting, die & kiss cutting, and cross-wound spooling.

Applications – Where 3M™ 4508 Performs

Flexible Printed Circuit (FPC) mounting
Bonding to High Surface Energy (HSE) metals
Thermal assembly in electronics
Under-the-hood automotive applications
High-temperature home appliance assembly
Die-cut foam components for electronic modules

Benefits – Why Choose 3M™ 4508 Single-Coated Foam Tape?

High temperature resistance – withstands up to 500°F (260°C), ideal for solder reflow
Strong adhesive strength – maintains bond in heat, pressure, and time
Clean converting performance – low outgassing and die-cut stability
Clear, clean aesthetic – ideal for applications requiring visual precision
Adheres to multiple materials – including metals and flexible substrates
Conformable urethane foam – adapts to irregular surfaces without losing bond strength

Why Work with 921 XLo-Tech – a 3M Select Converter?

As a 3M Select Converter, 921 XLo-Tech goes beyond supplying tape – we engineer solutions that drive production efficiency, accuracy, and quality. Here’s what sets us apart:

Proven expertise in processing 3M™ 4508
Fast prototyping & short-run support
Scalable production for any volume
Strict internal quality control
Processes aligned with ISO standards
Flexible logistics and supply chain

Choose 921 XLo-Tech – your reliable, responsive, and innovative converting partner.

Converting Services – How We Tailor 3M™ 4508 for Your Needs

At 921 XLo-Tech, we turn 3M™ 4508 tape into ready-to-use components that fit seamlessly into your production line:

Rewinding to custom roll lengths
Slitting to tailored widths
Sheeting for flat-pack delivery
Die cutting and kiss cutting for shaped parts or easy-release labels
Cross-wound spooling for high-speed automated applications

We create precision converting solutions for automotive, electronics, appliances, and more.

Technical data

Adhesive Type Acrylic
Application Window and Door Glazing, Sealing
Backing (Carrier) Thickness (Imperial) 125 mil
Backing (Carrier) Thickness (Metric) 3.2 mm
Brands 3M™
Density (Imperial) 20 lb/ft³
Density (Metric) 320 kg/m³
Elongation at Break 2.0 %
Foam Type Flexible
Indoor/Outdoor
Industries Construction, General Industrial, Specialty Vehicle, Transportation, Appliance

Maximum Operating Temperature 66 ℃
Maximum Operating Temperature (Fahrenheit) 150 ℉
Minimum Operating Temperature -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 Black
Shelf Life 18 Month
Smallest Saleable Unit Roll

Tensile Strength (Imperial) 100.0 lb/in
Tensile Strength (Metric) 690 kPa
Total Tape Thickness without Liner (Imperial) 125 mil
Total Tape Thickness without Liner (Metric) 3.2 mm
Units per Case 2.0, 6.0, 9.0, 12.0, 18.0, 24.0, 36.0
Overall Length (Imperial) 36 yd
Overall Length (Metric) 32.9 m, 32.91 m
Overall Width (Imperial) 0.3 in, 0.37 in, 0.5 in, 0.75 in, 1 in, 2 in, 4.48 in
Overall Width (Metric) 0.6 mm, 9.52 mm, 12.7 mm, 19 mm, 25.4 cm, 50.8 mm, 114 mm

FAQ

Which industries use 3M™ 4508 most?Monika Kluk2025-06-16T14:07:03+02:00

Which industries use 3M™ 4508 most?

Electronics, automotive, appliance manufacturing, and converting operations that require high temperature and foam adaptability.

In what formats can I receive this tape?Monika Kluk2025-06-16T14:05:36+02:00

In what formats can I receive this tape?

We supply in rolls, sheets, spools, or custom-cut pieces – tailored to your exact requirements.

What is the tape’s thickness?Monika Kluk2025-06-16T14:04:13+02:00

What is the tape’s thickness?

3M™ 4508 has a thickness of 3.2 mm, providing effective gap-filling and cushioning.

Can the tape be die-cut?Monika Kluk2025-06-16T14:02:59+02:00

Can the tape be die-cut?

Absolutely. The stable liner and dense foam enable precise die and kiss cutting.

Is 3M™ 4508 suitable for high temperatures?Monika Kluk2025-06-16T14:01:45+02:00

Is 3M™ 4508 suitable for high temperatures?

Yes – it offers short-term resistance up to 260°C (500°F), making it ideal for soldering and heat-intensive environments.

Downloads

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Ready to Upgrade Your Process? Partner with 921 XLo-Tech & 3M™

Don’t settle for standard – choose custom-engineered performance. With 921 XLo-Tech, a trusted 3M Select Converter, you’ll get more than just tape. You’ll get a smarter solution, ready to perform from day one.