4920-1x72 - 3M Electronic Specialty

VHB™ Tapes

Technical Data October 2014

- 1 -

Product Description:

3M™ VHB™ Tapes provide the convenience and simplicity of a tape fastener and are ideal for use in many interior and exterior bonding

applications. In many situations, they can replace rivets, spot welds, liquid adhesives and other permanent fasteners.

These 3M™ VHB™ Tapes are made with acrylic foam which is viscoelastic in nature. This gives the foam energy absorbing and stress

relaxing properties which provides these tapes with their unique characteristics. The acrylic chemistry provides outstanding durability

performance.

These tapes utilize a variety of speciﬁc foam, adhesive, color and release liner types to provide each product/family with speciﬁc features.

These features can include adhesion to speciﬁc or a broad range of materials, conformability, high tensile strength, high shear and peel

adhesion, resistance to plasticizer migration, and UL746C recognition. All 3M™ VHB™ Tapes have excellent durability and excellent

solvent and moisture resistance.

The tapes included in this data page represent products most commonly used by customers. Please refer to “3M™ VHB™ Tape Specialty

Tapes” technical data sheet for additional 3M™ VHB™ Tapes that may be required in special circumstances.

(P) or (F) after the product number designates that both a paper and film liner product version are available. [e.g. 4941 (paper liner) and 4941F (film liner), 5915 (film

liner) and 5915P (paper liner). See page 2 for specific details.

3M™ VHB™ Tape Products

4941 Family

This family utilizes multi-purpose acrylic adhesive on both sides of

a conformable adhesive foam core. The adhesive provides excellent

adhesion to a broad range of high and medium surface energy

substrates including metals, glass, and a wide variety of plastics, as

well as plasticized vinyl. The conformable adhesive foam core provides

good contact, even with mismatched substrates. The combination of

foam strength, conformability, and adhesion makes this family one of

the most capable all-around 3M™ VHB™ tapes.

Tape Number Color Thickness in (mm)

4919F Black 0.025 (0.6)

4926 Gray 0.015 (0.4)

4936(F) Gray 0.025 (0.6)

4941(F) Gray 0.045 (1.1)

4947F Black 0.045 (1.1)

4956(F) Gray 0.062 (1.6)

4979F Black 0.062 (1.6)

4991 Gray 0.090 (2.3)

4991B Black 0.090 (2.3)

RP Family

This family utilizes multi-purpose acrylic adhesive on both sides

of a conformable adhesive foam core. The adhesive provides good

adhesion to a broad range of high and medium surface energy

substrates including metals, glass, and a wide variety of plastics.

The conformable adhesive foam core provides good contact, even

with mismatched substrates

Tape Number Color Thickness in (mm)

RP16(F) Gray 0.016 (0.4)

RP25(F) Gray 0.025 (0.6)

RP32(F) Gray 0.032 (0.8)

RP45(F) Gray 0.045 (1.1)

RP62(F) Gray 0.062 (1.6)

5952 Family

This family utilizes modiﬁed acrylic adhesive on both sides of a very

conformable adhesive foam core, providing adhesion the broadest

range of substrates, including most powder coated paints.

Tape Number Color Thickness in (mm)

5906 Black 0.006 (0.15)

5907 Black 0.008 (0.20)

5908 Black 0.010 (0.25)

5909 Black 0.012 (0.30)

5915(P) Black 0.016 (0.4)

5915WF White 0.016 (0.4)

5925(P) Black 0.025 (0.6)

5925WF White 0.025 (0.6)

5930(P) Black 0.032 (0.8)

5930WF White 0.032 (0.8)

5952(P) Black 0.045 (1.1)

5952WF White 0.045 (1.1)

5958FR Black 0.040 (1.0)

5962(P) Black 0.062 (1.6)

5962WF White 0.062 (1.6)

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Typical Physical Properties Note: The following technical information and data should be considered representative or

typical only and should not be used for specification purposes.

Tape Thickness

Inches (mm) Tolerance

Adhesive

Type

Foam

Type

Density

lb/ft

(kg/m

)

Thickness

Type Inches (mm) Color

Family Number Color

4919F Black 0.025 (0.6) ± 15% Multi-Purp Conform 45 (720) PE Film 0.005 (0.13) Red (printed)

4926 Gray 0.015 (0.4) ± 15% Multi-Purp Conform 45 (720) Dk Paper 0.003 (0.08) White (printed)

4936 Gray 0.025 (0.6) ± 15% Multi-Purp Conform 45 (720) Dk Paper 0.003 (0.08) White (printed)

4936F Gray 0.025 (0.6) ± 15% Multi-Purp Conform 45 (720) PE Film 0.005 (0.13) Red (printed)

4941 Gray 0.045 (1.1) ± 10% Multi-Purp Conform 45 (720) Dk Paper 0.003 (0.08) White (printed)

4941F Gray 0.045 (1.1) ± 10% Multi-Purp Conform 45 (720) PE Film 0.005 (0.13) Red

4947F Black 0.045 (1.1) ± 10% Multi-Purp Conform 45 (720) PE Film 0.005 (0.13) Red (printed)

4956 Gray 0.062 (1.6) ± 10% Multi-Purp Conform 45 (720) Dk Paper 0.003 (0.08) White (printed)

4956F Gray 0.062 (1.6) ± 10% Multi-Purp Conform 45 (720) PE Film 0.005 (0.13) Red (printed)

4979F Black 0.062 (1.6) ± 10% Multi-Purp Conform 45 (720) PE Film 0.005 (0.13) Red (printed)

4991 Gray 0.090 (2.3) ± 10% Multi-Purp Conform 45 (720) PE Film 0.005 (0.13) Red (printed)

4991B Black 0.090 (2.3) ± 10% Multi-Purp Conform 45 (720) PE Film 0.005 (0.13) Red (printed)

4941

5906 Black 0.006 (0.15) ± 15% Modified Very Conf 45 (720) PET 0.003 (0.08) Clear

5907 Black 0.008 (0.20) ± 15% Modified Very Conf 45 (720) PET 0.003 (0.08) Clear

5908 Black 0.010 (0.25) ± 15% Modified Very Conf 45 (720) PET 0.003 (0.08) Clear

5909 Black 0.012 (0.30) ± 15% Modified Very Conf 45 (720) PET 0.003 (0.08) Clear

5915 Black 0.016 (0.4) ± 15% Modified Very Conf 43 (690) PE Film 0.005 (0.13) Red (printed)

5915P Black 0.016 (0.4) ± 15% Modified Very Conf 43 (690) PCK Paper 0.004 (0.10) White (printed)

5915WF White 0.016 (0.4) ± 15% Modified Very Conf 43 (690) PE Film 0.005 (0.13) Red (printed)

5925 Black 0.025 (0.6) ± 15% Modified Very Conf 37 (590) PE Film 0.005 (0.13) Red (printed)

5925P Black 0.025 (0.6) ± 15% Modified Very Conf 37 (590) PCK Paper 0.004 (0.10) White (printed)

5925WF White 0.025 (0.6) ± 15% Modified Very Conf 37 (590) PE Film 0.005 (0.13) Red (printed)

5930 Black 0.032 (0.8) ± 15% Modified Very Conf 37 (590) PE Film 0.005 (0.13) Red (printed)

5930P Black 0.032 (0.8) ± 15% Modified Very Conf 37 (590) PCK Paper 0.004 (0.10) White (printed)

5930WF White 0.032 (0.8) ± 15% Modified Very Conf 37 (590) PE Film 0.005 (0.13) Red (printed)

5952 Black 0.045 (1.1) ± 10% Modified Very Conf 37 (590) PE Film 0.005 (0.13) Red (printed)

5952P Black 0.045 (1.1) ± 10% Modified Very Conf 37 (590) PCK Paper 0.004 (0.10) White (printed)

5952WF White 0.045 (1.1) ± 10% Modified Very Conf 37 (590) PCK Paper 0.004 (0.10) White (printed)

5958FR Black 0.040 (1.0) ± 10% Modified Very Conf 50 (800) PE Film 0.005 (0.13) Red (printed)

5962 Black 0.062 (1.6) ± 10% Modified Very Conf 37 (590) PE Film 0.005 (0.13) Red (printed)

5962P Black 0.062 (1.6) ± 10% Modified Very Conf 37 (590) PCK Paper 0.004 (0.10) White (printed)

5962WF White 0.062 (1.6) ± 10% Modified Very Conf 37 (590) PE Film 0.005 (0.13) Red (printed)

5952

RP16 Gray 0.016 (0.4) ± 15% Multi-Purp Conform 45 (720) Dk Paper 0.003 (0.08) White (printed)

RP16F Gray 0.016 (0.4) ± 15% Multi-Purp Conform 45 (720) PE Film 0.005 (0.13) Red (printed)

RP25 Gray 0.025 (0.6) ± 15% Multi-Purp Conform 45 (720) Dk Paper 0.003 (0.08) White (printed)

RP25F Gray 0.025 (0.6) ± 15% Multi-Purp Conform 45 (720) PE Film 0.005 (0.13) Red (printed)

RP32 Gray 0.032 (0.8) ± 15% Multi-Purp Conform 45 (720) Dk Paper 0.003 (0.08) White (printed)

RP32F Gray 0.032 (0.8) ± 15% Multi-Purp Conform 45 (720) PE Film 0.005 (0.13) Red (printed)

RP45 Gray 0.045 (1.1) ± 10% Multi-Purp Conform 45 (720) Dk Paper 0.003 (0.08) White (printed)

RP45F Gray 0.045 (1.1) ± 10% Multi-Purp Conform 45 (720) PE Film 0.005 (0.13) Red (printed)

RP62 Gray 0.062 (1.6) ± 10% Multi-Purp Conform 45 (720) Dk Paper 0.003 (0.08) White (printed)

RP62F Gray 0.062 (1.6) ± 10% Multi-Purp Conform 45 (720) PE Film 0.005 (0.13) Red (printed)

3M™ VHB™ Tapes

3M™ VHB™ Tapes Adhesive and Foam Release Liner

- 3 -

Slitting Tolerance

Standard slitting tolerance ± 1/32 inch (± 0.031 inch, ± 0.79 mm).

Precision slitting with slitting tolerance of ± 1/64 inch (± 0.016 in., ± 0.41 mm) is available on select products with minimum

order of full web increments.

Core Size

All products are provided on a 3 inch ID Core (76.2 mm)

Converted Parts

In addition to standard and custom roll sizes available from 3M through the distribution network, 3M™ VHB™ Tapes are also

available in limitless shapes and sizes through the 3M Converter network. For additional information, contact 3M Converter

Markets at 1-800-223-7427 or on the web at www.3M.com/converter.

Shelf Life

All 3M™ VHB™ Tapes have a shelf life of 24 months from date of shipment when stored at 40°F to 100°F (4°C to 38°C) and

0-95% relative humidity. The optimum storage conditions are 72°F (22°C) and 50% relative humidity.

Performance of tapes is not projected to change even after shelf life expires; however, 3M does suggest that 3M™ VHB™

Tapes are used prior to the shelf life date whenever possible.

The manufacturing date is available on all 3M™ VHB™ Tape cores as the lot number. The lot number, typically a 4 digit code,

is a Julian date (Y D D D). The first digit refers to the year of manufacture, the last 3 digits refer to the days after January 1.

Example: A lot number of 9266 would translate to a date of manufacture of Sept. 22 (266th day of year) in 2009. On most

products this is found as the 4 digits after the “9” following the product number. For tapes printed continuously around the

core (e.g. 3M™ VHB™ Tape 5952 family) the lot number typically will be the string of 4 digits preceding the product number.

inches (mm)

Available Sizes

*Exception – 5915 (P) max. width 46 inches (1168 mm); 5925 (P) max. width 47 inches (1194 mm).

Note: 5952 family tapes thinner than 0.015 in (0.4 mm) have max. length 360 yd (329.2 m) for widths 1 in (25 mm) to 8 in (203 mm) and 180 yd (164.6 m) for all other widths.

< 0.015 (0.4) 72 (65.8) 0.5 (13) 46 (1168) N/A N/A N/A N/A See Note Below

0.015/0.016 (0.4) 72 (65.8) 0.25 (6) 48* (1219) 144 (131.7) 175 (160.0) 360 (329.2)

0.025 (0.6) 72 (65.8) 0.25 (6) 48* (1219) 72 (65.8) 108 (98.8) 175 (160.0)

0.032 (0.8) 72 (65.8) 0.25 (6) 48 (1219) 72 (65.8) 108 (98.8) 175 (160.0)

0.040 (1.0) 36 (32.9) 0.25 (6) 48 (1219) 72 (65.8) 108 (98.8) 144 (131.7)

0.045 (1.1) 36 (32.9) 0.25 (6) 48 (1219) 72 (65.8) 108 (98.8) 144 (131.7)

0.062 (1.6) 36 (32.9) 0.25 (6) 46 (1168) 72 (65.8) 72 (65.8) 108 (98.8)

0.090 (2.3) 36 (32.9) 0.25 (6) 46 (1168) 36 (32.9) 36 (32.9) 72 (65.8)

yards (meters)

Tape Thickness Standard Length Minimum Width Maximum Width Width 1/4"up to 3/8"

(6.4mm up to 9.5mm)

Width >3/8" up to 1/2"

(>9.5mm up to 12.7mm)

Width 1/2" and wider

(12.7mm and wider)

Maximum Roll Length

Special Cases:

Plasticized Vinyl – Plasticizers compounded in soft vinyl can migrate into adhesives and significantly change their performance

characteristics. 3M™ VHB™ Tapes 4941 family has very good plasticizer resistance and adhesion to many vinyl formulations.

Because of the wide variation in vinyl formulations, however, evaluation by the user must be conducted with the specific vinyl

used to ensure that performance will be satisfactory over time. Problems related to plasticizer migration can often be predicted

by accelerated aging of assembled parts at 150°F (66°C) for one week).

inches (mm) inches (mm) yards (meters) yards (meters) yards (meters)

3M™ VHB™ Tapes

- 4 -

90° Peel Adhesion - Based on ASTM D3330 -To stainless steel, room temperature, jaw speed 12 in/min (304.8 mm/min). Average force to remove is measured.

72 hour dwell.

Normal Tensile (T-Block Tensile) - ASTM D-897 - To aluminum, room temperature, 1 in2 (6.45 cm2), jaw speed 2 in/min (50.8 mm/min) Peak force to separate is

measured. 72 hour dwell.

Dynamic Overlap Shear - ASTM D-1002 - To stainless steel, room temperature, 1 in2 (6.45 cm2), jaw speed 0.5 in/min (12.7 mm/min) Peak force to separate is

measured. 72 hour dwell.

XXXXX

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.

Product Thickness

Family Number Color Inches

3M™ VHB™ Tapes Dynamic Adhesion Performance

90° Peel Adhesion

lb/in N/cm

Normal Tensile

lb/in2 kPa

Dynamic Overlap Shear

lb/in2 kPa

4919F Black 0.025 17 (30) 90 (620) 80 (550)

4926 Gray 0.015 14 (25) 95 (660) 90 (620)

4936(F) Gray 0.025 17 (30) 90 (620) 80 (550)

4941(F) Gray 0.045 22 (39) 85 (590) 70 (480)

4947F Black 0.045 22 (39) 85 (590) 70 (480)

4956(F) Gray 0.062 22 (39) 80 (550) 70 (480)

4979F Black 0.062 22 (39) 80 (550) 70 (480)

4991 Gray 0.090 22 (39) 70 (480) 65 (450)

4991B Black 0.090 22 (39) 70 (480) 65 (450)

4941

5906 Black 0.006 9 (16) 100 (690) 100 (690)

5907 Black 0.008 10 (18) 100 (690) 100 (690)

5908 Black 0.010 12 (21) 100 (690) 100 (690)

5909 Black 0.012 12 (21) 100 (690) 100 (690)

5915(P) Black 0.016 14 (25) 90 (620) 90 (620)

5915WF White 0.016 14 (25) 90 (620) 90 (620)

5925(P) Black 0.025 17 (30) 90 (620) 90 (620)

5925WF White 0.025 17 (30) 90 (620) 90 (620)

5930(P) White 0.032 19 (33) 90 (620) 85 (590)

5930WF Black 0.032 19 (33) 90 (620) 85 (590)

5952(P) Black 0.045 22 (39) 90 (620) 80 (550)

5952WF White 0.045 22 (39) 90 (620) 80 (550)

5958FR Black 0.040 20 (35) 100 (690) 100 (690)

5962(P) Black 0.062 22 (39) 90 (620) 80 (550)

5962WF White 0.062 22 (39) 90 (620) 80 (550)

5952

RP16(F) Gray 0.016 12 (21) 95 (660) 90 (620)

RP25(F) Gray 0.025 17 (30) 90 (620) 80 (550)

RP32(F) Gray 0.032 18 (32) 85 (590) 75 (520)

RP45(F) Gray 0.045 20 (35) 85 (590) 70 (480)

RP62(F) Gray 0.062 20 (35) 80 (550) 70 (480)

3M™ VHB™ Tapes

- 5 -

Static Shear - ASTM D3654 - To stainless steel, tested at various temperatures and gram loadings. 0.5 in2 (3.23 cm2). Will hold listed weight for 10,000 minutes

(approximately 7 days). Conversion: 1500 g/0.5 in2 equals 6.6 lb/in2; 500 g/0.5 in2 = 2.2 lb/in2.

Short Term Temperature Tolerance - No change in room temperature dynamic shear properties following 4 hours conditioning at indicated temperature with

100 g/static load. (Represents minutes, hours in a process type temperature exposure).

Long Term Temperature Tolerance - Maximum temperature where tape supports at least 250 g load per 0.5 in2 in static shear for 10,000 minutes. (Represents

continuous exposure for days or weeks).

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.

Temperature Tolerance

72°F 150°F 200°F 250°F

(22°C) (66°C) (93°C) (121°C)

Short Term

(Minutes, Hours)

°F (°C)

Long Term

(Days, Weeks)

°F (°C)

Static Shear

Product Thickness

Family Number Color Inches

3M™ VHB™ Tapes

4919F Black 0.025 1000 500 500 300 (149) 200 (93)

4926 Gray 0.015 1000 500 500 300 (149) 200 (93)

4936(F) Gray 0.025 1000 500 500 300 (149) 200 (93)

4941(F) Gray 0.045 1000 500 500 300 (149) 200 (93)

4947F Black 0.045 1000 500 500 300 (149) 200 (93

4956(F) Gray 0.062 1000 500 500 300 (149) 200 (93)

4979F Black 0.062 1000 500 500 300 (149) 200 (93)

4991 Gray 0.090 1000 500 500 250 (121) 200 (93)

4991B Black 0.090 1000 500 500 250 (121) 200 (93)

4941

5906 Black 0.006 1000 500 500 250 300 (149) 250 (121)

5907 Black 0.008 1000 500 500 250 300 (149) 250 (121)

5908 Black 0.010 1000 500 500 250 300 (149) 250 (121)

5909 Black 0.012 1000 500 500 250 300 (149) 250 (121)

5915(P) Black 0.016 1000 500 500 250 300 (149) 250 (121)

5915WF White 0.016 1000 500 500 250 300 (149) 250 (121)

5925(P) Black 0.025 1000 500 500 250 300 (149) 250 (121)

5925WF Black 0.032 1000 500 500 250 300 (149) 250 (121)

5930(P) Black 0.032 1000 500 500 250 300 (149) 250 (121)

5930WF White 0.032 1000 500 500 250 300 (149) 250 (121)

5952(P) Black 0.045 1000 500 500 250 300 (149) 250 (121)

5952WF White 0.045 1000 500 500 250 300 (149) 250 (121)

5958FR Black 0.040 1000 350 250 300 (149) 200 (93)

5962(P) Black 0.062 1000 500 500 250 300 (149) 250 (121)

5962WF White 0.062 1000 500 500 250 300 (149) 250 (121)

5952

RP16(F) Gray 0.016 1000 500 500 250 (121) 200 (93)

RP25(F) Gray 0.025 1000 500 500 250 (121) 200 (93)

RP32(F) Gray 0.032 1000 500 500 250 (121) 200 (93)

RP45(F) Gray 0.045 1000 500 500 250 (121) 200 (93)

RP62(F) Gray 0.062 1000 500 500 250 (121) 200 (93)

3M™ VHB™ Tapes

- 6 -

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.

Burn Characteristics 3M™ VHB™ Tape 5958FR

Meets FAR 25.853 (a) 12 second vertical burn, Appendix F, Part I (a)(ii)

Meets NBS Smoking Density (ASTM F814/E662)

Meets Toxicity (Draeger Tube ABD0031, AITM 3.0005)

Dielectric Constant 2.29 2.14 at 1 kHz ASTM D150

1.99 1.95 at 1MHz ASTM D150

Dissipation Factor 0.0245 0.0065 at 1 kHz ASTM D150

0.0374 0.0506 at 1MHz ASTM D150

Dielectric Breakdown Strength 14 (360) 18 (455) V/µm (V/mil) ASTM D140

Thermal Conductivity (k value) 0.08 (0.5) 0.05 (0.4) W/mK (BTU•in/hr•ft

•°F)

Volume Resisitivity 2.1 x 10

2.5 x 10

Ω-cm ASTM D257

Surface Resisitivity 2.7 x 10

>10

Ω/sq ASTM D257

Water Vapor Transmission Rate 25.6 37.1 g/m

•day ASTM F1249 at 38°C/100% 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) 3 x 10

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

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

Polycarbonate, Aluminum, Acrylic/ -35° 90°C

Polyurethane Paint, Polyester Paint

4919F, 4926, 4936,

4936F, 4941, 4941F,

4947F, 4956, 4956F,

4979F

Polycarbonate, Primer 94 Coated -35°C 90°C

Polycarbonate, Aluminum, Acrylic/

Polyurethane Paint, Galvanized Steel,

Polyester Paint, Epoxy Paint, Silane

Coated Glass, Uncoated Glass,

Stainless Steel, Enameled Steel,

Glass Epoxy, Polybutylene

Terephthalate, Nylon, Polyphenelene

Ether (PPE), Acrylic

Rigid PVC, ABS -35°C 75°C

Cellulose Acetate Butyrate -35°C 90°C

5915, 5915P, 5915WF

5925, 5925P, 5925WF,

5930, 5030P, 5930WF,

5952, 5952P, 5952WF,

5962, 5962P, 5962WF

5952, 5952P, 5952WF

A current list can be found at www.ul.com (select certifications, search file MH17478)

Aluminum, Silane Coated Glass -35°C 90°C

PVC, ABS -35°C 75°C

Galvanized Steel, Enameled Steel, -35°C 90°C

Nylon, Polycarbonate, Glass Epoxy,

Phenolic, PPE/PS Blend, PBT, Epoxy

Paint, Polyester Paint, Adhesion

Promoter 111 Coated Epoxy Paint,

Promoter 111 Coated Polyester Paint,

Acrylic Urethane Paint, Epoxy/

Polyester Paint

Stainless Steel, Glass, Acrylic -35°C 90°C

PVC, ABS -35°C 75°C

RP16

RP62

3M™ VHB™ Tape

4941 5952 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.

Water

Salt Water

Hydraulic Fluid

10W30 Motor Oil

Glycol Antifreeze

Kerosene Isopropyl Alcohol

Jet Fuel

Gasoline MEK

Solvent and Fuel Resistance

100

% Adhesive Retention

RP16F, RP25, RP32,

RP45, RP62

4991

3M™ VHB™ Tapes

- 7 -

Use the right tape thickness: The necessary thickness of tape depends on the rigidity of substrates and their flatness irregularity.

While the 3M™ VHB™ Tapes will conform to a certain amount of irregularity, they will not flow to fill gaps between the materials.

For bonding rigid materials with normal flatness, consider use of tapes with thickness of 45 mils (1.1 mm) or greater. As the

substrate flexibility increases thinner tapes can be considered.

Use the right amount of tape: Because 3M™ VHB™ Tapes are viscoelastic by nature their strength and stiffness is a function

of the rate at which they are stressed. They behave stronger with relatively faster rate of stress load (dynamic stresses) and

will tend to show creep behavior with stress load acting over a long period of time (static stresses). As a general rule, for static

loads, approximately four square inches of tape should be used for each pound of weight to be supported in order to prevent

excessive creep. For dynamic loads, the dynamic performance characteristics provided on page 4 should be useful, factoring in

the appropriate safety factors.

Allow for thermal expansion/contraction: 3M™ VHB™ Tapes can perform well in applications where two bonded surfaces

may expand and contract differentially. Assuming good adhesion to the substrates, the tapes can typically tolerate differential

movement in the shear plane up to 3 times their thickness.

Bond Flexibility: While an advantage for many applications where allowing differential movement is a benefit, the tape bonds

are typically more flexible than alternative bonding methods. Suitable design modifications or periodic use of rigid fasteners or

adhesives may be needed if additional stiffness is required.

Severe Cold Temperature: Applications which require performance at severe cold temperatures must be thoroughly evaluated

by the user if the intended use will subject the tape product to high impact stresses. A technical bulletin “3M™ VHB™ Tape Cold

Temperature Performance” (70-0707-3991-0) is available for additional information.

NOTES: There are a wide variety of formulations, surfaces finishes and surface treatments available on substrate materials which can affect adhesion. This chart is intended

to provide only a rough estimate of the adhesion levels which can be expected on some common materials relative to a reference surface such as aluminum.

Foam type can affect and/or limit maximum adhesive strength.

3M™ VHB™ Tapes

Design and Tape Selection Considerations

Choose the right tape for the substrate: Adhesives must flow onto the substrate surfaces in order to achieve intimate contact

area and allow the molecular force of attraction to develop. The degree of flow of the adhesive on the substrate is largely

determined by the surface energy of the substrate.

Adhesive

High surface energy

— Substrate

Adhesive

Low surface energy

— Substrate

This illustration demonstrates the effect of surface energy on adhesive interfacial contact. High surface energy materials

draw the adhesive closer for high bond strength.

4941 Family

5952 Family

RP Family

1100-400 50-42 39-38 37-36 33-18

(High) (Medium) (Low)

Surface Energy (Dynes/cm)

Relationship of Adhesion and Surface Energy for 3M™ VHB™ Tape Adhesive Families

Generally good

adhesion

Primer may be

needed for good

adhesion

Aluminum

Stainless Steel

Copper

Zinc

Tin

Lead

Anodized Aluminum

Glass

Polyimide

Phenolic

Nylon

Alkyd Enamel

Polyester

Epoxy Paint

Polyurethane

ABS

Polycarbonate

PVC

PPE

Acrylic

PU Enamel

Powder Paint

PVA

Polystyrene

Acetal

PVDF Paint

Powder Paint

EVA

Polyethylene

Polypropylene

PVF

Silicone

PTFE

- 8 -

Application Techniques

Clean: Most substrates are best prepared by cleaning with a 50:50 mixture of isopropyl alcohol (IPA*) and water prior to

applying 3M™ VHB™ Tapes.

Exceptions to the general procedure that may require additional surface preparation include:

• Heavy Oils: A degreaser or solvent-based cleaner may be required to remove heavy oil or grease from a surface and

should be followed by cleaning with IPA/water.

• Abrasion: Abrading a surface, followed by cleaning with IPA/water, can remove heavy dirt or oxidation and can

increase surface area to improve adhesion.

• Adhesion Promoters: Priming a surface can significantly improve initial and ultimate adhesion to many materials

such as plastics and paints.

• Porous surfaces: Most porous and fibered materials such as wood, particleboard, concrete, etc. need to be sealed

to provide a unified surface.

• Unique Materials: Special surface preparation may be needed for glass and glass-like materials, copper and copper

containing metals, and plastics or rubber that contain components that migrate (e.g. plasticizers).

Refer to 3M Technical Bulletin “Surface Preparation for 3M™ VHB™ Tape Applications” for additional details and

suggestions. (70-0704-8701-5)

*Note: These cleaner solutions contain greater than 250 g/l of volatile organic compounds (VOC). Please consult your

local Air Quality Regulations to be sure the cleaner is compliant. When using solvents, be sure to follow the

manufacturer’s precautions and directions for use when handling such materials.

Pressure: Bond strength is dependent upon the amount of adhesive-to-surface contact developed. Firm application

pressure develops better adhesive contact and helps improve bond strength. Typically, good surface contact can be

attained by applying enough pressure to insure that the tape experiences approximately 15 psi (100 kPa) pressure. Either

roller or platen pressure can be used. Note that rigid surfaces may require 2 or 3 times that much pressure to make the

tape experience 15 psi.

Temperature: Ideal application temperature range is 70°F to 100°F (21°C to 38°C). Pressure sensitive adhesives use

viscous flow to achieve substrate contact area. Minimum suggested application temperatures:

• 50°F (10°C): 3M™ VHB™ Tapes 5952 and RP families.

• 60°F (15°C): 3M™ VHB™ Tape 4941 family.

Note: Initial tape application to surfaces at temperatures below these suggested minimums is not recommended

because the adhesive becomes too firm to adhere readily. However, once properly applied, low temperature

holding is generally satisfactory.

To obtain good performance with all 3M™ VHB™ Tapes, it is important to ensure that the surfaces are dry and free of

condensed moisture.

Time: After application, the bond strength will increase as the

adhesive flows onto the surface (also referred to as “wet out”).

At room temperature approximately 50% of ultimate bond

strength will be achieved after 20 minutes, 90% after 24 hours

and 100% after 72 hours. This flow is faster at higher temperatures

and slower at lower temperatures. Ultimate bond strength can be

achieved more quickly (and in some cases bond strength can be

increased) by exposure of the bond to elevated temperatures

(e.g. 150°F [66°C] for 1 hour). This can provide better adhesive

wetout onto the substrates. Abrasion of the surfaces or the use of

primers/ adhesion promoters can also have the effect of increasing

bond strength and achieving ultimate bond strength more quickly.

100

20 MIN 1 HOUR 24 HOURS 72 HOURS

150°F or ABRADE

50°F

ROOM TEMP

PERCENT OF FULL BOND

Bond Typical Build vs. Time

3M™ VHB™ Tapes

- 9 -

3M and VHB are trademarks of 3M Company.

Printed in U.S.A.

Recycle, Neg

Recycled Paper

40% pre-consumer

10% post-consumer

Industrial Adhesives and Tapes Division

3M Center, Building 225-3S-06

St. Paul, MN 55144-1000

800-362-3550 • 877-369-2923 (Fax)

www.3M.com/vhb

The technical information, recommendations and other statements contained in this document are based upon tests

or experience that 3M believes are reliable, but the accuracy or completeness of such information is not guaranteed.

Technical Information

Many factors beyond 3M’s control and uniquely within user’s knowledge and control can affect the use and performance

of a 3M product in a particular application. Given the variety of factors that can affect the use and performance of a

3M product, user is solely responsible for evaluating the 3M product and determining whether it is fit for a particular

purpose and suitable for user’s method of application.

Product Use

3M warrants for 24 months from the date of shipment that 3M™ VHB™ Tape will be free of defects in material and

manufacture. 3M MAKES NO OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOTLIMITED TO, ANY

IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. This limited warranty does

not cover damage resulting from the use or inability to use 3M™ VHB™ Tape due to misuse, workmanship in application,

or application or storage not in accordance with 3M recommended procedures. AN APPLICATION WARRANTY EXPRESSLY

APPROVED AND ISSUED BY 3M IS AN EXCEPTION. THE CUSTOMER MUST APPLY FOR A SPECIFIC APPLICATION WARRANTY

AND MEET ALL WARRANTY AND PROCESS REQUIREMENTS TO OBTAIN AN APPLICATION WARRANTY. CONTACT 3M FOR

MORE INFORMATION ON APPLICATION WARRANTY TERMS AND CONDITIONS.

Limitied Remedy

This Industrial Adhesives and Tapes Division product was manufactured under a 3M quality system registered to ISO 9001 standards.

ISO 9001

If the 3M™ VHB™ Tape is proved to be defective within the warranty period stated above. THE EXCLUSIVE REMEDY,

AT 3M’S OPTION, SHALL BE TO REFUND THE PURCHASE PRICE OF OR TO REPAIR OR REPLACE THE DEFECTIVE 3M™

VHB™ TAPE. 3M shall not otherwise be liable for loss or damages, whether direct, indirect, special, incidental, or

consequential, regardless of the legal theory asserted, including negligence, warranty, or strict liability.

Limitation of

Remedies and

Liability

Mouser Electronics

Authorized Distributor

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4930-1/2"X72YD 4905-1/2"x72yd 4905-3/4"x72yd 4905-1"x72yd 4910-1/2"x36yd 4910-3/4"x36yd 4932-1/2"x72yd

4932-3/4"x72yd 4932-1"x72yd 4936F-3/4"x72yd 4941-Gray-1/2"x36yd-Bulk 4941-3/4"x36yd-SmPk 4941-1"x36yd-

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SmPk 4945-White-1"x36yd-SmPk 4952-3/4"x36yd-SmPk 4952-1"x36yd-SmPk 4979F-1/2"x36yd 4979F-3/4"x36yd

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