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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.

Dielectric Constant

2.28

3.21

2.80

at 1 kHz

ASTM D150

1.99

2.68

2.43

at 1MHz

ASTM D150

Dissipation Factor

0.0227

0.0214

0.0130

at 1 kHz

ASTM D150

0.0370

0.0595

0.0564

at 1MHz

ASTM D150

Dielectric Breakdown Strength

18 (460)

25 (630)

13 (330)

V/µm (V/mil)

ASTM D140

Thermal Conductivity (k value)

0.09 (0.6)

0.16 (1.1)

0.11 (0.8)

W/mK (BTU•in/hr•ft2•°F)

Volume Resisitivity

1.5 x 1015

3.1 x 1015

1.4 x 1015

Ω-cm

ASTM D257

Surface Resisitivity

>1016

>1016

>1016

Ω/sq

ASTM D257

Water Vapor Transmission Rate

14.0

g/m2•day

ASTM F1249 at 38°C/1000% RH

Thermal Properties of Modeling

Thermal Coefficient of Expansion

180 (100)

10-6 m/m/°C (10-6 in/in/°F)

Shear Modulus (at 25°C, 1 Hz)

6 x 105

Pa

Poisson’s Ratio

0.49

3M™ VHB™ Tape

4950

4910

4611

Units

Test Standard

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.

Solvent and Fuel Resistance

Water

Salt Water

Hydraulic Fluid

10W30 Motor Oil

Glycol Antifreeze

Kerosene

Isopropyl Alcohol

Jet Fuel

Gasoline

MEK

100

90

80

70

60

50

40

30

20

10

0

100

90

80

70

60

50

40

30

20

10

0

% Adhesive Retention

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

Aluminum, Galvanized Steel,

-35°C

110°C

Enameled Steel, Stainless Steel,

Ceramic, Glass/Epoxy

PBT

-35°C

90°C

ABS, Polycarbonate, Rigid PVC

-35°C

75°C

Acrylic

-35°C

90°C

Glass / Galvanized Steel

*, Glass /

-35°C

120°C

Glass

*, Galvanized Steel /

Aluminum

*, Aluminum / Aluminum*

4914, 4920, 4930,

4950

Phenolic, Aluminum, Galvanized

-35°C

110°C

Steel, Alkyd Enamel, Enameled Steel

ABS, Polycarbonate, Polyamide,

-35°C

90°C

Stainless Steel, Acrylic/Polyurethane

Paint, Polyester Paint

Unplasticized PVC

-35°C

75°C

4945

Polycarbonate, Aluminum,

-35°C

90°C

Acrylic/Polyurethane Paint

4905, 4910

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

Outgassing

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

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

4920, 4930, 4950,

4955, 4959, 4959F

* Substrates can be used with or without primer(s)/Coating. 3M Silane Coating, 3M Adhesion Promoter 4298UV

and 3M Tape Primer 94 are used with glass substrate. 3M Primer AP111, 3M Adhesion Promoter 4298UV and

3M Tape Primer 94 are used with aluminum and galvanized steel substrates.

3M™ VHB™ Tape Specialty Tapes