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May, 2008
3M™ Single-Coated Urethane Foam Tape 4108
Product Description
3M™ Single-Coated Foam Tapes will adhere to a variety of substrates, including latex-painted wood,
lacquered wood, enameled steel, glass, aluminum, stainless steel, acrylic, ABS, and PVC (non-plasticized) as
tape adhesion is typically satisfactory within 20 minutes and continues to build with additional time.
Product Features
3M™ Urethane Foam Tapes Series 4100 are a natural-white, rm, high-density, open-cell foam with pressuresensitive adhesive on one side. The acrylic adhesive o ers high initial quick stick to many types of surfaces
along with excellent shear strength and high temperature performance. The adhesive is protected by a 0.003
inch (0.08 mm) thick white, silicone treated paper liner and has a rm rigid open cell urethane that o ers
excellent cushioning characteristics while allowing air or gas vapors to pass through the open cells. This
product is placed on a 1.5 in. wide common core when the tape is 3/4 in. or less in width. Skip slitting is also
used for roll stability on these narrow sizes. Note: 3M urethane foam tape series 4100 may turn yellow when
exposed to light. Such yellowing a ects only the appearance and not the physical performance of the tapes.
3M™ Single-Coated Urethane Foam Tape 4108
Technical Information Note
The following technical information and data should be considered representative or typical only and should not be used for speci cation purposes.
Typical Physical Properties
Property
Values
Color
Natural-white
Thickness
3.2 mm
Thickness
Tolerance
15 %
Adhesive
350*
Density
256 kg/m³
16 lb/ft³
Liner Thickness
0.08 mm
3 mil
Liner Color
White
Shore 00
Hardness
75
*Note
* 3M™ Adhesive
350 is a mediumrm acrylic
adhesive that
provides a
continuation of high
wet grab and initial
adhesion.
Compression
De ection: 25%
Compression
41.4 kPa
Mold and Mildew
Resistance
No growth after 28
days
Method
Notes
ASTM D3574
Foam with adhesive
ASTM D2240
Foam with adhesive
Attribute
Modi er
125 mil
6 lb/in²
ASTM D3574
ASTM G21
Foam with
Adhesive
3M™ Single-Coated Urethane Foam Tape 4108
Typical Performance Characteristics
Property
Values
130 lb/in²
Method
Notes
ASTM D3574
Die “A”
Die “A”
Tensile Strength
895 kPa
Elongation
80 %
ASTM D3574
Compression Set
8%
ASTM D1667
Temperature Resistance
Test Condition
Notes
93 °C
200 °F
Continuous
177 °C
350 °F
30 minutes maximum time
Cold ex at -18 °C
Cold ex at 0 °F
No cracks. Tape slowly bent around a 1/4 in.
diameter mandrel.
Property: Temperature Resistance
Available Sizes
Property
Values
Standard Roll Length
32.9 m
36 yd
Roll Diameter
380 mm
15 in
Maximum Length
45.7 m
50 yd
Minimum Available Width
6 mm
0.25 in
Maximum Available Width
1168 mm
46 in
Normal Slitting Tolerance
± 0.8 mm
± 1/32 in
Electrical and Thermal Properties
Property
Values
Method
0.5 (btu-in)/(h-ft²-°F)
Attribute Modi er
Thermal Conductivity
0.066 W/m/K
ASTM C518
Surface Resistivity
6 × 10^14 Ω
ASTM D257
Non-Adhesive Side
Surface Resistivity
1 × 10^15 Ω
ASTM D257
Adhesive Side
Water Absorption: 30%
Compression
open cell - NA % by Volume
ASTM D1056
3M™ Single-Coated Urethane Foam Tape 4108
Typical Environmental Performance
Solvent Resistance
*Visual observations of tape bonded to steel panels and immersed totally in solvent/fuel for 24 hours.
Handling/Application Information
Application Techniques
• Bond strength is dependent upon the amount of adhesive-to-surface contact. Firm application pressure develops better adhesive contact and helps improve bond
strength.
• To obtain optimum adhesion, the bonding surface must be clean, dry, and well uni ed. Some typical surface cleaning solvents are isopropyl alcohol and heptane.*
*Be sure to follow the solvent manufacturer’s precautions and directions for use when handling solvents.
• Ideal tape application temperature range is 70°F to 100°F (21°C to 38°C). Initial tape application to surfaces at temperatures below 50°F (10°C) is not recommended
because the adhesive becomes too rm to adhere readily. However, once properly applied, low temperature holding is generally satisfactory.
Storage and Shelf Life
Store in the original cartons at 60-80°F (15-27°C) and 50% relative humidity.
Shelf life is 24 months from date of manufacture.
Industry Speci cations
FMVSS 302
FAR 25.853 B-2
FAR 25.853 B-3
Trademarks
3M is a trademark of the 3M Company.
References
Property
Values
3m.com Product Page
https://www.3m.com/3M/en_US/company-us/all-3m-products/~/3MUrethane-Foam-Tape-4108/?N=5002385+3293241309&rt=rud
Safety Data Sheet (SDS)
https://www.3m.com/3M/en_US/company-us/SDS-search/results/?
gsaAction=msdsSRA&msdsLocale=en_US&co=ptn&q=4108
3M™ Single-Coated Urethane Foam Tape 4108
Family Group
4104
4108
4116
Color
Natural-white
Natural-white
Natural-white
Thickness (mm)
6.4
3.2
1.6
Adhesive
350*
350*
350*
Liner Thickness (mm)
0.08
0.08
0.08
Liner Color
White
White
White
ISO Statement
This Industrial Adhesives and Tapes Division product was manufactured under a 3M quality system registered to ISO 9001 standards.
Information
Technical Information: The technical information, guidance, and other statements contained in this document or otherwise provided by 3M are based upon records,
tests, or experience that 3M believes to be reliable, but the accuracy, completeness, and representative nature of such information is not guaranteed. Such
information is intended for people with knowledge and technical skills su cient to assess and apply their own informed judgment to the information. No license under
any 3M or third party intellectual property rights is granted or implied with this information.
Product Selection and Use: Many factors beyond 3M’s control and uniquely within user’s knowledge and control can a ect the use and performance of a 3M product
in a particular application. As a result, customer is solely responsible for evaluating the product and determining whether it is appropriate and suitable for customer’s
application, including conducting a workplace hazard assessment and reviewing all applicable regulations and standards (e.g., OSHA, ANSI, etc.). Failure to properly
evaluate, select, and use a 3M product and appropriate safety products, or to meet all applicable safety regulations, may result in injury, sickness, death, and/or harm
to property.
Warranty, Limited Remedy, and Disclaimer: Unless a di erent warranty is speci cally stated on the applicable 3M product packaging or product literature (in which
case such warranty governs), 3M warrants that each 3M product meets the applicable 3M product speci cation at the time 3M ships the product. 3M MAKES NO
OTHER WARRANTIES OR CONDITIONS, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OR CONDITION OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR ARISING OUT OF A COURSE OF DEALING, CUSTOM, OR USAGE OF TRADE. If a 3M product
does not conform to this warranty, then the sole and exclusive remedy is, at 3M’s option, replacement of the 3M product or refund of the purchase price.
Limitation of Liability: Except for the limited remedy stated above, and except to the extent prohibited by law, 3M will not be liable for any loss or damage arising from
or related to the 3M product, whether direct, indirect, special, incidental, or consequential (including, but not limited to, lost pro ts or business opportunity),
regardless of the legal or equitable theory asserted, including, but not limited to, warranty, contract, negligence, or strict liability.
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