CA-8-.07oz - 3M Electronic Specialty

Scotch-WeldTM

Instant Adhesives

Technical Data December 2016

Product Description 3M™ Scotch-Weld™ Instant Adhesives are single component, high strength

cyanoacrylate adhesives.

Features • One component, high strength adhesives that cure at room temperature.

• Products provide varying cure times, bond strengths, and viscosities.

• Can be used to bond a variety of substrates including many rubbers, plastics, and

metals.

• Economical to use as it requires only drops of adhesive to provide strong bonds to

many metals, plastics, and rubbers.

Description 3M™ Scotch-Weld™ Instant Adhesive CA4 is a high-strength, very fast setting,

multi-purpose cyanoacrylate adhesive that cures at room temperature with very low

bonding pressures. It has particularly good adhesion to most cured rubbers.

3M™ Scotch-Weld™ Instant Adhesive CA5 is a high-strength, slow setting

cyanoacrylate adhesive that cures at room temperature. Its relatively high viscosity

is especially useful where some gap filling is desired for bonding rough or uneven

surfaces. The longer set rate allows more time for proper alignment of parts to be

bonded. Meets CID A-A-3097, Type II, Class 3.

3M™ Scotch-Weld™ Instant Adhesive CA7 is a high-strength, extremely fast

setting cyanoacrylate adhesive that cures quickly at room temperature. It has

excellent adhesion to many metals, plastics and rubbers, and produces bonds with

more shock and impact resistance than many typical cyanoacrylate adhesives.

3M™ Scotch-Weld™ Instant Adhesive CA8 is a high-strength, rapid-setting

cyanoacrylate adhesive that cures at room temperature. It has excellent adhesion to

many metals, plastics and rubbers, and produces bonds with more shock resistance

than many typical cyanoacrylate adhesives. Meets CID A-A-3097, Type II, Class 2.

3M™ Scotch-Weld™

Instant Adhesives

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Description (continued) 3M™ Scotch-Weld™ Instant Adhesive CA9 is a high-strength cyanoacrylate

adhesive that cures slower than many cyanoacrylates at room temperature. The

longer set rate allows more time for proper alignment of parts before bonding takes

place. It has excellent adhesion to many metals, plastics and rubbers, and produces

bonds with more shock and impact resistance than many typical cyanoacrylate

adhesives. Meets CID A-A-3097, Type II, Class 3.

3M™ Scotch-Weld™ Instant Adhesive CA40 is a high-strength, very fast-setting

cyanoacrylate adhesive that cures at room temperature with very low bonding

pressures. It has particularly good adhesion to many difficult to bond substrates

such as EPDM rubber, aluminum and flexible vinyl.

3M™ Scotch-Weld™ Instant Adhesive CA40H is a high-strength cyanoacrylate

adhesive. It is a higher viscosity, slightly slower setting version of Scotch-Weld

CA40. It has particularly good adhesion to many difficult to bond substrates, such

as aluminum, EPDM rubber, and flexible vinyl. Scotch-Weld CA40H exhibits good

resistance to soap solutions and isopropyl alcohol. Its high viscosity helps prevent

run off during application, and its slower set time allows additional time for proper

alignment of parts.

3M™ Scotch-Weld™ Instant Adhesive Gel CA50 is a high-strength, surface

insensitive, gel cyanoacrylate adhesive. Its gel consistency allows it to be used in

many non-sag vertical applications, and to fill gaps up to .020 inches. The very

slow cure rate allows plenty of time to reposition parts. Meets CID A-A-3097,

Type II, Class 5.

3M™ Scotch-Weld™ Instant Adhesive CA100 is a high-strength cyanoacrylate

adhesive. Its relatively high viscosity (approximately 3000 cps) allows gap-filling

capability up to .020 inches. It has high T-Peel strength, thermal shock resistance,

impact resistance, and excellent metal bonding capabilities. Meets CID A-A-3097,

Type II, Class 3.

3M™ Scotch-Weld™

Instant Adhesives

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Typical Physical

Properties (uncured) Note: The following technical information and data should be considered representative

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

Product

3M™ Scotch-Weld™ Instant Adhesive

CA4

CA5

CA7

CA8

CA9

CA40

CA40H

Gel CA50

CA100

Color

Colorless

Base

Ethyl

Methyl

Ethyl

Viscosity (cps)

150

2000

15-40

70-130

1000-

1700

400-600

20,000-

50,000

2500-

4500

Temperature Range

-65°F (-54°C) – 180°F (82°C)

Specific Gravity

1.05

1.08

1.05

Net Weight (lbs/gal)

8.7

9.0

8.7

Typical Physical

Properties (cured) Note: The following technical information and data should be considered representative

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

Product

Scotch-Weld

CA4

CA5

CA7

CA8

CA9

CA40

CA40H

Gel CA50

CA100

Time to Handling

Strength (seconds)

5-40

12-60

1-30

5-40

20-70

3-20

5-40

60-120

20-70

Overlap Shear Strength

Tested at 75°F [23°C] (psi) Note: The following technical information and data should be considered representative

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

Product

Scotch-Weld

CA4

CA5

CA7

CA8

CA9

CA40

CA40H

Gel CA50

CA100

Steel

2300

2500

2000

1700

1500

2000

Aluminum - etched

2800

600

2400

2100

2400

2600

1500

900

2900

ABS

800*

900*

800*

900*

800*

600*

PVC

800*

1000*

800*

1000*

600*

700*

Overlap Shear Metal to Metal Bond Strength tested @ 75°F (23°C) (psi)

Tensile Lap Shear Strength (as defined in ASTM-D-1002) - cured 48 hours at 68°F (20°C) - 60% Relative Humidity - abraded and acetone

wiped - test specimen is 1/2 sq. in. bond tested @ .1 in./minute loading rate.

*Substrate Failure

3M™ Scotch-Weld™

Instant Adhesives

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Surface Preparation For optimum 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 depends on the required bond strength and the

environmental aging resistance desired by the user.

Metals (Steel and Aluminum):

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

2. Sandblast or abrade using clean fine grit abrasives.

3. Wipe again with solvent to remove loose particles.

Aluminum Etching:

1. Alkaline Degrease: Oakite 164 solution (9-11 oz./gallon water) at 190°F ± 10°F

(88°C ± 5°C) for 10-20 minutes. Rinse immediately in large quantities of cold

running water.

2. Acid Etch: Place panels in the following solution for 10 minutes at 150°F ± 5°F

(66°C ± 2°C).

Sodium Dichromate 4.1 - 4.9 oz./gallon

Sulfuric Acid, 66°Be 38.5 - 41.5 oz./gallon

2024-T3 aluminum (dissolved) 0.2 oz./gallon minimum

Tap water as needed to balance

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

4. Dry: Air dry 15 minutes; force dry 10 minutes at 150°F ± 10°F (66°C ± 5°C).

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 clean fine grit abrasives.

3. Wipe with Isopropyl Alcohol.*

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

and follow the manufacturer’s precautions and directions for use.

Handling For short term storage (30 days), keep adhesive in a cool, dry place 60 to 80°F

(16-27°C). For long term storage, refrigeration (40°F [4°C] or below) is suggested.

Keep containers tightly covered and free of moisture. Polymerization is accelerated

by sunlight, so avoid direct exposure to sun. One Ounce Bottles: At end of day, clear

tip of dispensing nozzle by inserting a needle to prevent clogging. Wipe outside of

nozzle to remove excess adhesive with a folded non-cotton cloth or tissue. Replace

cap. One Pound Bottles: At end of day, remove cap-stem assembly and place

overnight in nitromethane or methyl ethyl ketone.* Seal bottle with shipping cap.

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

and follow the manufacturer’s precautions and directions for use.

3M™ Scotch-Weld™

Instant Adhesives

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Storage Store in original containers at or below 80°F (27°C).

Shelf Life These products can be expected to have at least nine months shelf life. At lower

temperature, the shelf life will be longer. Lower temperatures cause increased

viscosity of a temporary nature and also will cause water to condense on the

container. Therefore, containers stored at low temperatures should be allowed to

return to room temperature before opening so that water does not come in contact

with the adhesive and cause adhesive gelation.

Precautionary

Information

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

product. For additional health and safety information, call 1-800-364-3577 or (651) 737-6501.

Product Use All statements, technical information and recommendations contained in this document are based upon

tests or experience that 3M believes are reliable. However, many factors beyond 3M’s control can affect

the use and performance of a 3M product in a particular application, including the conditions under

which the product is used and the time and environmental conditions in which the product is expected to

perform. Since these factors are uniquely within the user’s knowledge and control, it is essential that the

user evaluate the 3M product to determine whether it is fit for a particular purpose and suitable for the

user’s method of application.

Warranty and

Limited Remedy Unless stated otherwise in 3M’s product literature, packaging inserts or product packaging for individual

products, 3M warrants that each 3M product meets the applicable specifications at the time 3M ships the

product. Individual products may have additional or different warranties as stated on product literature,

package inserts or product packages. 3M MAKES NO OTHER WARRANTIES, EXPRESS OR IMPLIED,

INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS

FOR A PARTICULAR PURPOSE OR ANY IMPLIED WARRANTY ARISING OUT OF A COURSE OF

DEALING, CUSTOM OR USAGE OF TRADE. User is responsible for determining whether the 3M product

is fit for a particular purpose and suitable for user’s application. If the 3M product is defective within the

warranty period, your exclusive remedy and 3M’s and seller’s sole obligation will be, at 3M’s option, to

replace the product or refund the purchase price.

Limitation of Liability Except where prohibited by law, 3M and seller 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.

Industrial Business

Industrial Adhesives and Tapes Division

3M Center, Building 21-1W-10, 900 Bush Avenue

St. Paul, MN 55144-1000

800-362-3550 • 877-369-2923 (fax)

www.3M.com/structuraladhesives

3M and Scotch-Weld are

trademarks of 3M Company.

Mouser Electronics

Authorized Distributor

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CA-8-.07oz