Datasheet

- 7 -
Additional Typical Performance Characteristics
Outgassing:
3M™ VHB™
Tapes % TML %VCM %WVR
4930 0.77 0.01 0.21
4932 2.41 0.66 0.23
4945 1.24 0.01 0.19
TML - Total Mass Loss
VCM - Volatile Condensible Materials
WVR - Water Vapor Regained
NASA Reference Publication, “Outgassing Data
for Selecting Spacecraft Materials”, (11/18/2004)
Available online at http://outgassing.nasa.gov
Resistivity
(ASTM D257)
3M™ VHB™ Volume Resistivity Surface Resistance
Tapes (in ohm-cm) (in ohms/square)
4941 2.1 x 10
14
2.7 x 10
14
5952 2.5 x 10
14
>10
16
4950 1.5 x 10
15
>10
16
4920 1.7 x 10
15
>10
16
4910 3.1 x 10
15
>10
16
4611 1.4 x 10
15
>10
16
3M™ VHB™ Tapes
UL746C Listings - File MH 17478
Category QOQW2 Component - Polymeric Adhesive Systems, Electrical Equipment
Note: The following technical information and data should be considered representative or typical only and should not
be used for specification purposes.
3M
™
VHB
™
Tapes
Thermal Conductivity - K-value
3M™ VHB™ BTU in/
Tapes hr ft
2
°F (w/mK)
4941 0.53 (0.08)
5952 0.37 (0.05)
4950/4945 0.63 (0.09)
4910 1.09 (0.16)
4611 0.77 (0.11)
R-Value = thic
kness
K-value
(When units of K-value are
BTU-in/hr ft
2
°F and thickness
is given in inches.)
Dielectric Breakdown Strength
(ASTM D149)
3M™ VHB™
Tapes (in volts/mil)
4941 360
4926 330
5952 455
5925 520
4950 460
4920 640
4910 630
4611 330
Dielectric Constant
(ASTM D150)
3M™ VHB™ Dielectric Dissipation
Tapes Constant Factor
4941 at 1 kHz 2.29 0.0245
at 1 MHz 1.99 0.0374
5952 at 1 kHz 2.14 0.0065
at 1 MHz 1.95 0.0506
4950 at 1 kHz 2.28 0.0227
at 1 MHz 1.99 0.0370
4910 at 1 kHz 3.21 0.0214
at 1 MHz 2.68 0.0595
4611 at 1 kHz 2.80 0.0130
at 1 MHz 2.43 0.0564
3M™ VHB™ Tapes/ Temperature Rating
Product Families Substrates Minimum Maximum
Ceramic -35°C 110°C
Aluminum, Galvanized steel, stainless -35°C 90°C
steel, enameled steel, nickel coated
ABS, glass (with or without silane
coating) PVC, glass/epoxy, PBT,
polycarbonate, acrylic/polyurethane
paint, polyester paint
ABS -35°C 75°C
4919F, 4926, 4936,
4936F, 4941, 4941F,
4947F, 4956, 4956F,
4979F
Aluminum, galvanized steel, -35°C 110°C
enameled steel, stainless steel,
ceramic, glass/epoxy
PBT, Acrylic -35°C 90°C
ABS, Polycarbonate, Rigid PVC -35°C 75°C
4920, 4930, 4950
Phenolic, aluminum, galvanized -35°C 110°C
steel, alkyd enamel
ABS, polycarbonate, polyimide, -35°C 90°C
stainless steel, acrylic/polyurethane
paint, polyester paint
unplasticized PVC -35°C 75°C
4945, 4946
Polycarbonate, aluminum, -35°C 90°C
acrylic/polyurethane paint, galvanized
steel, polyester paint
Rigid PVC -35°C 75°C
Acrylic, Cellulose Acetate Butyrate -35°C 90°C
Polycarbonate, aluminum, acrylic/ -35°C 90°C
polyurethane paint, polyester paint
4991
Stainless steel, aluminum, galvanized -35°C 110°C
steel, glass, glass/epoxy, phenolic
Nylon, polycarbonate -35°C 90°C
ABS, rigid PVC -35°C 75°C
4611, 4646, 4655
5925, 5952, 5962
5952
A current list can be found at www.ul.com (select certifications, search file MH17478)
Typical 3M™ VHB™ Tape Properties for Modeling
Thermal Coefficient
of Expansion
1 x 10
-4
in/in/°F
1.8 x 10
-4
mm/mm/°C
Shear Modulus (@25°C, 1 Hz)
4950 Family: 6 x 10
5
Pa
4941 Family: 3 x 10
5
Pa
(Shear Modulus is both temperature and frequency
dependent).
Youngs Modulus: For VHB tapes the Youngs
Modulus will be about 3 times the Shear Modulus.
Poisson’s Ratio
0.49
%
A
d
h
e
s
i
v
e
R
e
t
e
n
t
i
o
n
Solvent and Fuel Resistance
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
Water
Salt Water
Hydraulic Fluid
10W30 Motor Oil
Glycol Antifreeze
Kerosene
Isopropyl Alcohol
Jet Fuel
Gasoline
MEK
Test Method
• Tape between stainless steel and aluminum foil.
• 72 hours dwell at room temperature.
• Solvent immersion for 72 hours.
• Test within 45 minutes after removing from solvent.
• 90° peel angle.
• 12 in./min. rate of peel.
• Peel adhesion compared to control.
Note: Continuous submersion in chemical solutions is not recommended. The above information is presented to show that
occasional chemical contact should not be detrimental to tape performance in most applications in ordinary use.