3M™ VHB™ Tapes

Additional Typical Performance Characteristics
Note: The following technical information and data should be considered representative or typical only and should not

be used for specification purposes.

Outgassing:
3M™ VHB™
Tapes % TML %VCM %WVR
4930
4932
4945
0.77
2.41
1.24
0.01
0.66
0.01
0.21
0.23
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

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

Resistivity

(ASTM D257)

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

Thermal Conductivity - K-value

3M™ VHB™ BTU in/
Tapes hr ft2 ЇF (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 = thickness
K-value

(When units of K-value are
BTU-in/hr ft2 ЇF and thickness
is given in inches.)

3M™ VHB™ Volume Resistivity Surface Resistance
Tapes (in ohm-cm) (in ohms/square)

3M™ VHB™ Tapes
UL746C Listings - File MH 17478

Category QOQW2 Component - Polymeric Adhesive Systems, Electrical Equipment

3M™ VHB™ Tapes/ Temperature Rating
Product Families Substrates Minimum Maximum
4919F, 4926, 4936,
4936F, 4941, 4941F,
4947F, 4956, 4956F,
4979F
Ceramic -35ЇC 110ЇC
Aluminum, Galvanized steel, stainless
steel, enameled steel, nickel coated
ABS, glass (with or without silane
coating) PVC, glass/epoxy, PBT,
polycarbonate, acrylic/polyurethane
paint, polyester paint
-35ЇC 90ЇC
ABS -35ЇC 75ЇC
4920, 4930, 4950 Aluminum, galvanized steel,
enameled steel, stainless steel,
ceramic, glass/epoxy
-35ЇC 110ЇC
PBT, Acrylic -35ЇC 90ЇC
ABS, Polycarbonate, Rigid PVC -35ЇC 75ЇC
4945, 4946 Phenolic, aluminum, galvanized
steel, alkyd enamel
-35ЇC 110ЇC
ABS, polycarbonate, polyimide,
stainless steel, acrylic/polyurethane
paint, polyester paint
-35ЇC 90ЇC
unplasticized PVC -35ЇC 75ЇC
5925, 5952, 5962 Polycarbonate, aluminum,
acrylic/polyurethane paint, galvanized
steel, polyester paint
-35ЇC 90ЇC
Rigid PVC -35ЇC 75ЇC
5952 Acrylic, Cellulose Acetate Butyrate -35ЇC 90ЇC
4991 Polycarbonate, aluminum, acrylic/
polyurethane paint, polyester paint
-35ЇC 90ЇC
4611, 4646, 4655 Stainless steel, aluminum, galvanized
steel, glass, glass/epoxy, phenolic
-35ЇC 110ЇC
Nylon, polycarbonate -35ЇC 90ЇC
ABS, rigid PVC -35ЇC 75ЇC

4941 2.1 x 1014 2.7 x 1014
5952 2.5 x 1014 >1016 A current list can be found at www.ul.com (select certifications, search file MH17478)

4950 1.5 x 1015 >1016
4920 1.7 x 1015 >1016
4910 3.1 x 1015 >1016
4611 1.4 x 1015 >1016

Typical 3M™ VHB™ Tape Properties for Modeling

Thermal Coefficient
of Expansion
1 x 10-4 in/in/ЇF

1.8 x 10-4 mm/mm/ЇC
Shear Modulus (@25ЇC, 1 Hz)
4950 Family: 6 x 105 Pa
4941 Family: 3 x 105 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

Solvent and Fuel Resistance

100
% 90

100

90

R

80

80

Ae

70
he 60

dt 70

60
en 50

50
st 40

40
ii
30

30

vo

20

20

en

10
0

10

0

Water Kerosene Isopropyl Alcohol Gasoline MEK
Salt Water Jet Fuel

Hydraulic Fluid
10W30 Motor Oil
Glycol Antifreeze

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.
 90Ї 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.