3M™ Urethane Foam Tape 4108

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Natural, 0.125 in. (3 mm) firm, high-density open-cell foam design helps trap moisture, dust and contaminants

Allows air or gas vapors to pass through for a breathable seal

Dampens sounds and absorbs vibration when used in electronic applications

Overall Width (Imperial)

Overall Width (Metric)

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Details

Highlights

Natural, 0.125 in. (3 mm) firm, high-density open-cell foam design helps trap moisture, dust and contaminants
Allows air or gas vapors to pass through for a breathable seal
Dampens sounds and absorbs vibration when used in electronic applications
Excellent cushioning characteristics and high absorbency
Offers high initial quick-stick to multiple substrates
Provides excellent shear strength and high temperature performance

3M™ Urethane Foam Tape 4108 is a firm, high-density, open-cell foam tape with a pressure sensitive acrylic adhesive on one side. This tape will adhere to a variety of substrates and can be used in numerous applications to dampen sound and create a clean and durable product.

3M™ Urethane Foam Tape 4108 is 1/8 in. thick, comprised of a firm, high-density, open-cell foam with a pressure sensitive acrylic adhesive on one side. The adhesive is protected by a silicone treated paper liner.

3M Urethane Foam Tape 4108 can be used for cushioning and damping in electronics

Seals Out Moisture, Dust and Drafts
3M™ Urethane Foam Tape 4108 is 1/8 in. thick, comprised of a firm, high-density, open-cell foam with a pressure sensitive acrylic adhesive on one side. The adhesive is protected by a silicone treated paper liner. It offers excellent cushioning characteristics while allowing air or gas vapors to pass through, while providing high absorbency to seal out moisture, dust and drafts. It can perform under a wide range of temperatures. Special note: 3M™ Urethane Foam Tape 4108 may turn yellow when exposed to light, only affecting its appearance and not physical performance.

Recommended Applications

Cushion and dampen sound in electronics such as printers, keyboards, computers, aircraft lights and automotive dashboards
Recessed lighting
Door, window and cabinet seals

Excellent Shear Holding Strength with 3M™ Adhesive 350
3M™ Urethane Foam Tape 4108 features 3M™ Adhesive 350. This pressure sensitive, modified acrylic adhesive provides high initial quick-stick to a variety of surfaces and substrates. It has an excellent chemical resistant and shear holding strength, even at elevated temperatures. Adhesive 350 is designed to perform at temperatures up to 200°F (93°C) in the short term and 350°F (176°C) long term.

Protect Sensitive Components
The adhesion of 3M™ Single-Coated Foam Tapes is typically satisfactory within 20 minutes and continues to build with additional time. The adhesive is protected by a thick, silicone treated paper liner and has a firm, high-density foam. This design offers an attractive and clean appearance after application.

What is Open Cell Foam?
Open cell foams are commonly used between component panels where a degree of separation is needed to dampen or prevent vibration, as a thermal insulation barrier and to protect against contamination, but where a measure of airflow is still necessary, such as with electronic components where air flow helps keeps components cool.

Typical properties

Details

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	Indoor/Outdoor
Industries	Specialty Vehicle, Transportation, General Industrial, Appliance, Construction
Maximum Operating Temperature (Celsius)	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

Dimensions and Classifications

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

Resources

3M™ Single-Coated Foam Tape 4108

Regulatory Data Sheet

Document Number: MSDS_1966050_US_EN_RDS

(PDF)

Reviews

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	Current product 3M™ Urethane Foam Tape 4108	3M™ Urethane Foam Tape 4116	3M™ Urethane Foam Tape 4318	3M™ Urethane Foam Tape 4314
Overall Width (Metric)	1.3 mm, 2.5 mm, 19.05 mm, 50.8 mm, 76.2 cm, 101.6 cm
Overall Width (Imperial)	0.5 in, 0.75 in, 1 in, 2 in, 3 in, 4 in
Backing (Carrier) Material	Urethane
Product Color	Natural
Adhesive Type	Acrylic
Number of Adhesive Sides	Single-sided

For industrial/occupational use only. Not for consumer sale or use.

3M industrial and occupational products are intended, labeled, and packaged for sale to trained industrial and occupational customers for workplace use. Unless specifically stated otherwise on the applicable product packaging or literature, these products are not intended, labeled, or packaged for sale to or use by consumers (e.g., for home, personal, primary or secondary school, recreational/sporting, or other uses not described in the applicable product packaging or literature), and must be selected and used in compliance with applicable health and safety regulations and standards (e.g., U.S. OSHA, ANSI), as well as all product literature, user instructions, warnings, and other limitations, and the user must take any action required under any recall, field action, or other product use notice. Misuse of 3M industrial and occupational products may result in injury, sickness, death, or property damage. For help with product selection and use, consult your on-site safety professional, industrial hygienist, or other subject matter expert.