EC-2216 [3M]

Scotch-WeldTM Epoxy Adhesive;


型号：	EC-2216
厂家：	3M ELECTRONICS
描述：	Scotch-WeldTM Epoxy Adhesive
文件：	总8页 (文件大小：94K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

Scotch-Weld

Epoxy Adhesive

EC-2216 B/A

Technical Datasheet

June 2009

Product Description

3M™ Scotch-Weld™ Epoxy Adhesive EC-2216 B/A is a flexible, two-part, room

temperature curing epoxy with high peel and shear strength. Scotch-Weld EC-2216

Adhesive has been tested and certified for aircraft and aerospace application.

Note: The following technical information and data should be considered representative

or typical only and should not be used for specification purposes.

Typical Uncured

Physical Properties

Product

3M™ Scotch-Weld™ Epoxy Adhesive

EC-2216 B/A Gray EC-2216 B/A Translucent

Base

Accelerator

Base

Accelerator

Color:

Base:

White

Gray

Translucent

Amber

Modified

Epoxy

Modified

Amine

Modified

Epoxy

Modified

Amine

Net Wt.: (lb/gal)

11.1-11.6

10.5-11.0

9.4-9.8

8.0-8.5

Viscosity: (cps) (Approx.)

Brookfield RVF

#7 sp. @ 20 rpm

75,000 -

150,000

40,000 -

80,000

11,000 -

15,000

5,000 -

9,000

Mix Ratio: (by weight)

Mix Ratio: (by volume)

5 parts

2 parts

7 parts

3 parts

1 part

Work Life:

100 g Mass @ 75°F (24°C)

90 minutes

120 minutes

Features

• Excellent for bonding many metals, woods, plastics, rubbers, and masonry products.

• Base and Accelerator are contrasting colors.

• Good retention of strength after environmental aging.

• Resistant to extreme shock, vibration, and flexing.

• Excellent for cryogenic bonding applications.

• The translucent can be injected.

• Meets DOD-A-82720.

3M^™Scotch-Weld^™

Epoxy Adhesive EC-2216 B/A

Technical Datasheet

Typical Cured

Product

3M™ Scotch-Weld™ Epoxy Adhesive

Physical Properties

EC-2216 B/A Gray

EC-2216 B/A Translucent

Shore D Hardness

ASTM D 2240

50-65

35-50

Time to Handling Strength

8-12 hrs.

12-16 hrs.

Typical Cured

Product

3M™ Scotch-Weld™ Epoxy Adhesive

Electrical Properties

EC-2216 B/A Gray

130 seconds

EC-2216 B/A Translucent

Arc Resistance

—

630 volts/mil

6.3 @ 1 KHz

—

Dielectric Strength

408 volts/mil

Dielectric Constant @ 73°F (23°C)

5.51–Measured @ 1.00 KHz

Dielectric Constant @ 140°F (60°C) 14.17–Measured @ 1.00 KHz

Dissipation Factor 73°F (23°C)

Dissipation Factor 140°F (60°C)

Surface Resistivity @ 73°F (23°C)

Volume Resistivity @ 73°F (23°C)

0.112 Measured @ 1.00 KHz

0.422–Measured @ 1.00 KHz

5.5 x 10¹⁶ohm–@ 500 volts DC

0.119 @ 1 KHz

—

1.9 x 10¹²ohm-cm–

@ 500 volts DC

3.0 x 10¹²ohm-cm

@ 500 volts DC

—No value present.

Typical Cured

Product

3M™ Scotch-Weld™ Epoxy Adhesive

Thermal Properties

EC-2216 B/A Gray

EC-2216 B/A Translucent

Thermal Conductivity

0.228 Btu-ft/ft²h°F

0.114 Btu-ft/ft²h°F

Coefficient of Thermal

Expansion

102 x 10^-6in/in/°C

between 0-40°C

81 x 10^-6in/in/°C

between -50-0°C

134 x 10^-6in/in/°C

between 40-80°C

207 x 10^-6in/in/°C

between 60-150°C

Outgassing Data

Typical Cured

Outgassing Properties

NASA 1124 Revision 4

% TML % CVCM

.77 .04

% Wtr

3M™ Scotch-Weld™ Epoxy Adhesive EC-2216 B/A Gray

Cured in air for 7 days @ 77°F (25°C).

.23

Handling/Curing

Information

Directions for Use

1. For high strength structural bonds, paint, oxide films, oils, dust, mold release agents

and all other surface contaminants must be completely removed. However, the

amount of surface preparation directly depends on the required bond strength and

the environmental aging resistance desired by user. For suggested surface

preparations of common substrates, see the following section on surface preparation.

2. These products consist of two parts. Mix thoroughly by weight or volume in the

proportions specified on the product label and in the uncured properties section.

Mix approximately 15 seconds after a uniform color is obtained.

- 2 -

3M^™Scotch-Weld^™

Epoxy Adhesive EC-2216 B/A

Technical Datasheet

Handling/Curing

3. For maximum bond strength, apply product evenly to both surfaces to be joined.

Information (continued)

4. Application to the substrates should be made within 90 minutes. Larger quantities

and/or higher temperatures will reduce this working time.

5. Join the adhesive coated surfaces and allow to cure at 60°F (16°C) or above until

firm. Heat, up to 200°F (93°C), will speed curing.

6. The following times and temperatures will result in a full cure:

Product

3M™ Scotch-Weld™ Epoxy Adhesive

EC-2216 B/A Gray EC-2216 B/A Translucent

Time Time

Cure Temperature

75°F (24°C)

7 days

30 days

150°F (66°C)

200°F (93°C)

120 minutes

30 minutes

240 minutes

60 minutes

7. Keep parts from moving until handling strength is reached. Contact pressure is

necessary. Maximum shear strength is obtained with a 3-5 mil bond line.

Maximum peel strength is obtained with a 17-25 mil bond line.

8. Excess uncured adhesive can be cleaned up with ketone type solvents.*

Adhesive Coverage: A 0.005 in. thick bondline will typically yield a coverage of

320 sq. ft/gallon

Application and

These products may be applied by spatula, trowel or flow equipment.

Equipment Suggestions

Two-part mixing/proportioning/dispensing equipment is available for intermittent or

production line use. These systems are ideal because of their variable shot size and

flow rate characteristics and are adaptable to many applications.

Surface Preparation

For high strength structural bonds, paint, oxide films, oils, dust, mold release agents

and all other surface contaminants must be completely removed. However, the

amount of surface preparation directly depends on the required bond strength and the

environmental aging resistance desired by user.

The following cleaning methods are suggested for common surfaces.

Steel or Aluminum (Mechanical Abrasion)

1. Wipe free of dust with oil-free solvent such as acetone or alcohol solvents.*

2. Sandblast or abrade using clean fine grit abrasives (180 grit or finer).

3. Wipe again with solvents to remove loose particles.

4. If a primer is used, it should be applied within 4 hours after surface preparation.

If 3M™ Scotch-Weld™ Structural Adhesive Primer EC-1945 B/A is used, apply

a thin coating (0.0005") on the metal surfaces to be bonded, air dry for 10 minutes,

then cure for 30 minutes at 180°F (82°C) prior to bonding.

*When using solvents, extinguish all ignition sources, including pilot lights, and

follow the manufacturer’s precautions and directions for use. Use solvents in

accordance with local regulations.

- 3 -

3M^™Scotch-Weld^™

Epoxy Adhesive EC-2216 B/A

Technical Datasheet

Surface Preparation

Aluminum (Chemical Etch)

(continued)

Aluminum alloys may be chemically cleaned and etched as per ASTM D 2651. This

procedure states to:

1. Alkaline Degrease – Oakite^®Aluminum Cleaner 164 solution (9-11 oz/gal of

water) at 190°F ± 10°F (88°C ± 5°C) for 10-20 minutes. Rinse immediately in

large quantities of cold running water.

2. Optimized FPL Etch Solution (1 liter):

Material

Amount

Distilled Water

Sodium Dichromate

Sulfuric Acid

700 ml plus balance of liter (see below)

28 to 67.3 grams

287.9 to 310.0 grams

Aluminum Chips

1.5 grams/liter of mixed solution

To prepare 1 liter of this solution, dissolve sodium dichromate in 700 ml of

distilled water. Add sulfuric acid and mix well. Add additional distilled water to

fill to 1 liter. Heat mixed solution to 66 to 71°C (150 to 160°F). Dissolve 1.5

grams of 2024 bare aluminum chips per liter of mixed solution. Gentle agitation

will help aluminum dissolve in about 24 hours.

To etch aluminum panels, place them in FPL etch solution heated to 66 to 71°C

(150 to 160°F). Panels should soak for 12 to 15 minutes.

3. Rinse: Rinse panels in clear running tap water.

4. Dry: Air dry 15 minutes; force dry 10 minutes (minimum) at 140°F (60°C)

maximum.

5. If primer is to be used, it should be applied within 4 hours after surface

preparation.

Plastics/Rubber

1. Wipe with isopropyl alcohol.*

2. Abrade using fine grit abrasives (180 grit or finer).

3. Wipe with isopropyl alcohol.*

Glass

1. Solvent wipe surface using acetone or Methyl Ethyl Ketone (MEK).*

2. Apply a thin coating (0.0001 in. or less) of 3M™ Scotch-Weld™ Structural

Adhesive Primer EC-3901 to the glass surfaces to be bonded and allow the primer

to dry a minimum of 30 minutes @ 75°F (24°C) before bonding.

*When using solvents, extinguish all ignition sources, including pilot lights, and

follow the manufacturer’s precautions and directions for use. Use solvents in

accordance with local regulations.

- 4 -

3M^™Scotch-Weld^™

Epoxy Adhesive EC-2216 B/A

Technical Datasheet

Typical Adhesive

Performance

Characteristics

A. Typical Shear Properties on Etched Aluminum

ASTM D 1002

Cure: 2 hours @ 150 ± 5°F (66°C ± 2°C), 2 psi pressure

Overlap Shear (psi)

3M™ Scotch-Weld™ Epoxy Adhesive

EC-2216 B/A Gray EC-2216 B/A Translucent

2440

Test Temperature

-423°F (-253°C)

-320°F (-196°C)

-100°F (-73°C)

-67°F (-53°C)

—

2740

3000

3200

400

—

3000

1700

140

75°F (24°C)

180°F (82°C)

—No value present.

Shear Modulus

Test Temperature

(Torsion Pendulum Method)

-148°F (-100°C)

-76°F (-60°C)

-40°F (-40°C)

32°F (0°C)

398,000 psi (2745 MPa)

318,855 psi (2199 MPa)

282,315 psi (1947 MPa)

218,805 psi (1500 MPa)

49,580 psi (342 MPa)

75°F (24°C)

B. Typical T-Peel Strength

ASTM D 1876

T-Peel Strength (piw) @ 75°F (24°C)

3M™ Scotch-Weld™ Epoxy Adhesive

Test Temperature

EC-2216 B/A Gray

EC-2216 B/A Translucent

75°F (24°C)

- 5 -

3M^™Scotch-Weld^™

Epoxy Adhesive EC-2216 B/A

Technical Datasheet

Typical Adhesive

Performance

Characteristics

(continued)

C. Overlap Shear Strength After Environmental Aging-Etched Aluminum

Overlap Shear (psi) 75°F (24°C)

3M™ Scotch-Weld™ Epoxy Adhesive

EC-2216 B/A

Gray

EC-2216 B/A

Translucent

Environment

Time

100% Relative Humidity

@ 120°F (49°C)

14 days

30 days

90 days

2950 psi

1985 psi

1505 psi

—

1390 psi

—

*Salt Spray @ 75°F (24°C)

14 days

30 days

60 days

2300 psi

500 psi

300 psi

—

1260 psi

—

Tap Water @ 75°F (24°C)

14 days

30 days

90 days

3120 psi

2942 psi

2075 psi

—

1950 psi

—

Air @ 160°F (71°C)

Air @ 300°F (149°C)

Anti-icing Fluid @ 75°F (24°C)

Hydraulic Oil @ 75°F (24°C)

JP-4 Fuel

35 days

40 days

7 days

4650 psi

4930 psi

3300 psi

2500 psi

3300 psi

—

3500 psi

2500 psi

3000 psi

30 days

7 days

Hydrocarbon Fluid

*Substrate corrosion resulted in adhesive failure.

—No value present.

D. Heat Aging of 3M™ Scotch-Weld™ Epoxy Adhesive 2216 B/A Gray

(Cured for 7 days @ 75°F [24°C])

Overlap Shear (psi)

Test Temperature

-67°F (-53°C)

Time aged @ 300°F (149°C)

0 days

2200

3100

500

12 days

3310

5150

1000

440

40 days

3120

4930

760

51 days

2860

4740

1120

—

75°F (24°C)

180°F (82°C)

350°F (177°C)

420

560

—No value present.

- 6 -

3M^™Scotch-Weld^™

Epoxy Adhesive EC-2216 B/A

Technical Datasheet

Typical Adhesive

Performance

Characteristics

(continued)

E. Overlap Shear Strength on Abraded Metals, Plastics, and Rubbers.

Overlap shear strengths were measured on 1" x 1/2" overlap specimens. These

bonds were made individually using 1" by 4" pieces of substrate (Tested per

ASTM D 1002).

The thickness of the substrates were: cold rolled, galvanized and stainless steel –

0.056-0.062", copper – 0.032", brass – 0.036", rubbers – 0.125", plastics – 0.125".

All surfaces were prepared by solvent wiping/abrading/ solvent wiping.

The free crosshead speed used for testing was 0.1 in/min for metals, 2 in/min for

plastics, and 20 in/min for rubbers.

Overlap Shear (psi) @ 75°F (24°C)

3M™ Scotch-Weld™ Epoxy Adhesive

Substrate

EC-2216 B/A Gray

Aluminum/Aluminum

Cold Rolled Steel/Cold Rolled Steel

Stainless Steel/Stainless Steel

Galvanized Steel/Galvanized Steel

Copper/Copper

1850

1700

1900

1800

1050

850

Brass/Brass

Styrene Butadiene Rubber/Steel

Neoprene Rubber/Steel

ABS/ABS Plastic

200*

220*

990*

940*

1170*

1100*

PVC/PVC, Rigid

Polycarbonate/Polycarbonate

Acrylic/Acrylic

Fiber Reinforced Polyester/

Reinforced Polyester

1660*

610

Polyphenylene Oxide/PPO

PC/ABS Alloy / PC/ABS Alloy

1290

*The substrate failed during the test.

Storage

Store products at 60-80°F (16-27°C) for maximum storage life.

Shelf Life

When stored at the recommended temperatures in the original, unopened containers,

the shelf life is two years from date of shipment from 3M or an authorized 3M

Aerospace Distributor.

- 7 -

3M^™Scotch-Weld^™

Epoxy Adhesive EC-2216 B/A

Technical Datasheet

Refer to Product Label and Material Safety Data Sheet for health and safety information before

using this product. For additional health and safety information, please visit www.3M.com/msds or

call 1-800-364-3577 or (651) 737-6501.

Precautionary

Information

In the U.S., call toll free 1-800-235-2376, or fax 1-800-435-3082 or 651-737-2171. For U.S. Military,

call 1-866-556-5714. If you are outside of the U.S., please contact your nearest 3M office or one of

the following branches:

For Additional

Information

Australia

Austria

Brazil

Canada

61-2-498-9711 tel

61-2-498-9710 fax

01-86686-298 tel

01-86686-229 fax

55 19 3838-7876 tel

55 19 3838-6892 fax 800-263-3489 fax

800-410-6880 ext. 6018 tel

China

Denmark

France

Germany

86-21-62753535 tel

86-21-62190698 fax

45-43-480100 tel

45-43-968596 fax

0810-331-300 tel

30-31-6195 fax

02131-14-2344 tel

02131-14-3647 fax

Italy

Japan

Korea

Netherlands

02-7035-2177 tel

02-7035-2125 fax

03-3709-8245 tel

03-3709-8743 fax

02-3771-4114 tel

02-786-7429 fax

31-71-5-450-272 tel

31-71-5-450-280 fax

South Africa

Spain

Switzerland

United Kingdom

11-922-9111 tel

11-922-2116 fax

34-91-321-6000 tel

34-91-321-6002 fax 01-724-9068 fax

01-724-9114 tel

(0) 161-237-6174 tel

(0) 161-237-3371 fax

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

Product Use

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.

Unless an additional warranty is specifically stated on the applicable 3M product packaging or product

literature, 3M warrants that each 3M product meets the applicable 3M product specification 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 OR FITNESS FOR A PARTICULAR PURPOSE OR ANY IMPLIED

WARRANTY OR CONDITION ARISING OUT OF A COURSE OF DEALING, CUSTOM OR

USAGE OF TRADE. If the 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.

Warranty,

Limited Remedy,

and Disclaimer

Except where prohibited by law, 3M will not be liable for any loss or damage arising from the 3M

product, whether direct, indirect, special, incidental or consequential, regardless of the legal theory

asserted, including warranty, contract, negligence or strict liability.

Limitation of

Liability

This product was manufactured under a 3M quality system registered to AS9100 standards.

Aerospace & Aircraft Maintenance Department

3M Center, Building 223-1N-14

St. Paul, MN 55144-1000

1-800-235-2376

www.3M.com/aerospace

Please recycle. Printed in U.S.A.

60-9700-0231-1

3M and Scotch-Weld are trademarks of the 3M Company.

Oakite is a registered trademark of Chemetall, GmbH.

- 8 -

EC-2216 [3M]

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