DP-125 GRAY 1.7 FL OZ - 3M

Scotch-WeldTM

Epo xy Adhesi ves

D P125 T ranslucent and Gra y

Product Description 3M™ Scotch-Weld™ Epoxy Adhesive DP125 Translucent is a faster curing version

of the 3M™ Scotch-Weld™ Epoxy Adhesive 2216 Translucent B/A. The worklife

and cure time has been reduced from hours and days for the Scotch-Weld epoxy

adhesive 2216 Translucent B/A to minutes and hours. Final shear and peel strengths

remain similar or even slightly improved compared to the Scotch-Weld epoxy

adhesive 2216 Translucent.

Scotch-Weld epoxy adhesive DP125 Gray is a filled, pigmented version of the

Scotch-Weld epoxy adhesive DP125 Translucent and has similar performance and

flexibility properties.

Available in bulk containers as 3M™ Scotch-Weld™ Epoxy Adhesive 125 B/A

Translucent and 125 B/A Gray.

Features • 25 minute worklife • High peel and shear strength

• Flexible • Controlled flow (gray)

• Translucent or Gray • 1:1 mix ratio

Technical Data December, 2009

Typical Uncured

Properties Note: The follo wing technical information and data should be considered r epresentative

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

Scotch-Weld Scotch-Weld

Epoxy Adhesive Epoxy Adhesive

DP125 Translucent DP125 Gray

Base Resins Epoxy/Amine Epoxy/Amine

Viscosity1, Approximate Base (B) 2,000-8,000 cps 35,000-75,000 cps

@ 80°F Accelerator (A) 22,000-33,000 cps 45,000-65,000 cps

Net Weight Base (B) 9.3-9.7 10.3-10.7

(Lbs./gal.) Accelerator (A) 8.4-8.6 8.5-8.9

Color Base (B) Clear Gray

Accelerator (A) Amber Amber

Mix Ratio (B:A) By Volume 1:1 1:1

By Weight 1.10:1 1.2:1

Worklife22 gram 25 min. 25 min.

@ 73°F 20 gram 18 min. 15 min.

Footnotes:

1. Viscosity determined using 3M test method C-1d. Procedure involves Brookfield RVF, #7 spindle, 20 rpm and 80°F.

Measurement taken after 1 minute.

2. Worklife determined using 3M test method C-3180. Procedure involves periodically measur ing a 2 gram mixed mass for self

leveling and wetting properties. This time will also approximate the usable worklife in an 3M™ EPX™ Applicator mixing nozzle.

3M™Scotch-Weld™

Epo xy Adhesives

DP125 T ranslucent and Gra y

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Typical Cured

Properties

3M™ Scotch-Weld™ 3M™ Scotch-Weld™

Epo xy Adhesive Epo xy Adhesive

DP125 Translucent DP125 Gray

Color Translucent Gray

Hardness (ASTM D 2240)

Shore D 55 70

Worklife220-30 minutes 20-30 minutes

Tack-free Time3≈2 hrs ≈2 hrs

Time to Handling Strength4≈2.5 hrs ≈2.5 hrs

Full Cure Time57 da ys 7 da ys

Elongation6150% 120%

Tensile Strength62500 psi 3300 psi

Physical

Scotch-Weld Scotch-Weld

Epo xy Adhesive Epo xy Adhesive

DP125 Translucent DP125 Gray

W eight Loss by Thermal Gravimetric 1% @ 164°C 1% @ 176°C

Analysis (TGA)75% @ 301°C 5% @ 303°C

Thermal Coefficient of Expansion (TCE)

by TMA8(∞x 10-6 units/unit/°C)

Below Tg 112 (5-20°C range) 98 (5-20°C range)

Above Tg 190 (65-140°C range) 187 (65-140°C range)

Glass Transition Temperature

(Tg) by DCS9

Onset 3°C 12°C

Mid-Point 15°C 23°C

Thermal Conductivity10

(@ 110°F on .250 in. samples)

BTU - ft./ft.2- hr. - °F) .089 .087

Cal./sec. - cm - °C) .37 x 10-3 .36 x 10-3

Watt/m - °C .154 .151

Thermal Shock Resistance11

Potted Washer Ol yphant Test Pass 5 cycles P ass 5 cycles

(3M Test Method C-3174) without crac king without crac king

+100°C [air] to -50°C [liquid])

Thermal

Scotch-Weld Scotch-Weld

Epo xy Adhesive Epo xy Adhesive

DP125 Translucent DP125 Gray

Dielectric Constant @ 1 KHZ@ 23°C 6.3 6.3

(ASTM D 150)

Dissipation Factor @ 1 KHZ@ 23°C 0.14 0.13

(ASTM D 150)

Dielectric Strength 765 volts/mil 680 volts/mil

(ASTM D 149) Sample Thickness Appr ox. 30 mil

Volume Resistivity 1.2 x 1011 ohm-cm 1.0 x 1011 ohm-cm

(ASTM D 257)

Electrical

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

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

Footnotes:

2. Worklif e determined using 3M test

method C-3180. Procedure inv olv es

periodically measuring a 2 gram

mixed mass for self leveling and

wetting properties. This time will

also approximate the usab le

worklife in an 3M™ EPX™

Applicator mixing nozzle.

3. Tack-free time determined per 3M

test method C-3173. Inv olves

dispensing 0.5 gram amount of

adhesive onto substrate and

testing periodically for no adhesiv e

transf er to metal spatula.

4. Handling strength determined per

3M test method C-3179. Time to

handling strength taken to be that

required to achieve a 50 psi OLS

strength using aluminum

substrates.

5. The cure time is defined as that

time required for the adhesive to

achieve a minimum of 80% of the

ultimate strength as measured by

aluminum-aluminum OLS .

6. Tensile and Elongation. Used

procedure in 3M test method

C-3094/ATSM D 882. Samples

were 2 in. dumbbells with .0125 in.

neck and .030 in. sample

thickness. Separ ation rate w as 2

inches per minute. Samples cured

2 hrs RT plus 2 hrs/160°F.

7. Weight loss by TGA reported as

that temperature at which 5%

weight loss occurs by TGA in air at

5°C rise per minute per ASTM

1131-86.

8. TCE determined using TMA

Analyzer using a heating rate of

10°C per minute. Second heat

values giv en.

9. Glass Transition Temperature (Tg)

determined using DSC Analyzer

with a heating rate of 20°C per

minute. Second heat v alues given.

10. Thermal conductivity determined

using ASTM C177 and C-matic

Instrument using 2 in. diameter

samples.

11. Thermal shock resistance run per

3M test method C-3174. Inv olves

potting a metal washer into a 2 in.

x 0.5 in. thick section and cycling

this test specimen to colder and

colder temperatures.

3M™Scotch-Weld™

Epo xy Adhesives

DP125 T ranslucent and Gra y

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Typical Adhesive

Performance

Characteristics

3M™ Scotch-Weld™ 3M™ Scotch-Weld™

Epo xy Adhesive Epo xy Adhesive

DP125 Translucent DP125 Gray

Etched Aluminum 2500 psi 3400 psi

Sanded Aluminum (60 grit) 1400 psi 2200 psi

Cold Rolled Steel 1500 psi 1900 psi

W ood, Fir 700 psi 900 psi

Glass, Borosilicate 250 psi 400 psi

Glass, +3M™ Scotch-Weld™ Primer 3901 200 psi 250 psi

Polycarbonate 700 psi 880 psi

Acrylic 420 psi 550 psi

Fiberglass 1200 psi 1800 psi

ABS 460 psi 520 psi

PVC 500 psi 750 psi

Polypropylene 25 psi 60 psi

Overlap Shear Str ength (OLS) to12

(Bonds cured 24 hrs @ RT + 2 hrs 160°F)

The follo wing product performance data w as obtained in the 3M laboratory under the

conditions specified. The following data show typical results obtained with the 3M™

Scotch-Weld™ Adhesives when applied to properly prepared substrates, cured, and

tested according to the specifications indicated. The data w as generated using the 3M™

EPX™ Applicator System equipped with an EPX applicator static mixer, according to

manufacturer’s directions. Thorough hand mixing should afford comparable results.

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

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

Scotch-Weld Scotch-Weld

Epo xy Adhesive Epoxy Adhesive

DP125 Translucent DP125 Gra y

3 hrs @ R T 100 psi 250 psi

6 hrs @ R T 300 psi 500 psi

1 da y @ RT 1300 psi 1700 psi

1 wk @ R T 1900 psi 2300 psi

1 mo @ R T 2050 psi 3300 psi

Rate of Strength Buildup

(OLS on Etched Aluminum)12

Bonds tested after:

Scotch-Weld Scotch-Weld

` Epoxy Adhesive Epoxy Adhesive

DP125 Translucent DP125 Gra y

24 hrs R T + 2 hrs @ 160°F 2300 psi 4500 psi

24 hrs R T + 2 hrs @ 240°F 3300 psi 5000 psi

1 wk R T + 1 wk @ 90°F/90% RH 2600 psi 3500 psi

1 wk R T + 1 wk 248°F 4600 psi 5400 psi

1 wk R T + 1 wk H2O Immersion 2100 psi 3000 psi

Environmental Aging

(OLS on Etched Aluminum)12

Bonds tested after:

Footnotes:

12. Overlap shear (OLS) strengths

were measured on 1 in. wide 1/2

in. ov erlap specimens. These

bonds were made individually

using 1 in. x 4 in. pieces of

substrate. The thic kness of the

bond line was 0.005-0.008 in. All

strengths were measured at 70°F

except w ere noted. (Test per ASTM

D 1002-72.)

The separation rate of the testing

jaws was 0.1 in. per min ute for

metals, 2 in. per minute for plastics

and 20 in. per minute f or rubbers.

The thickness of the substrates

were: steel, 0.060 in.; other metals,

0.05-0.064 in.; rubber , 0.125 in.;

plastics, 0.125 in.

3M™Scotch-Weld™

Epo xy Adhesives

DP125 T ranslucent and Gra y

- 4 -

Typical Adhesive

Performance

Characteristics

(continued)

Bonds tested at 3M™ Scotch-Weld™ 3M™ Scotch-W eld™

Epo xy Adhesive Epo xy Adhesive

DP125 Translucent DP125 Gray

-67°F 4000 psi 3400 psi

70°F 2500 psi 4300 psi

120°F 400 psi 700 psi

150°F 190 psi 450 psi

180°F 150 psi 400 psi

Overlap Shear Str ength vs Temperature12

(Bonds cured 24 hr @ RT + 2 hrs @ 160°F)

Scotch-Weld Epoxy Adhesive Scotch-Weld Epoxy Adhesive

DP125 Translucent DP125 Gray

-67°F 3 piw 3 piw

70°F 35 piw 35 piw

120°F 10 piw 18 piw

150°F 3 piw 3 piw

180°F 2 piw 2 piw

180° Peel Strength vs Temperature13

(Bonds cured 24 hr @ RT + 2 hrs @ 160°F)

Scotch-Weld Epoxy Adhesive Scotch-Weld Epoxy Adhesive

DP125 Translucent DP125 Gray

One Hour/One Month One Hour/One Month

Acetone A/A A/A

Isoprop yl Alcohol A/A A/A

Freon TF A/A A/A

Freon TMC A/B A/B

1,1,1-Trichlorethane A/A A/A

RMA Flux A/A A/A

Key: A - Unaff ected, B - Slight Attack, C - Moderate/Severe Attack

Solvent Resistance14

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

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

Footnotes:

12. Overlap shear (OLS) strengths were measured on 1 in. wide 1/2 in. overlap specimens. These bonds were made

individually using 1 in. x 4 in. pieces of substrate. The thickness of the bond line was 0.005-0.008 in. All strengths were

measured at 70°F except were noted. (Test per ASTM D 1002-72.)

The separation rate of the testing jaws was 0.1 in. per minute for metals, 2 in. per minute for plastics and 20 in. per minute

for rubbers. The thickness of the substrates were: steel, 0.060 in.; other metals, 0.05-0.064 in.; rubber, 0.125 in.; plastics,

0.125 in.

13. T-peel strengths were measured on 1 in. wide bonds at 73°F. The testing jaw separation rate was 20 inches per minute.

The substrates were 0.020 in. thick. (Tests per ASTM D 1876-61T.)

14. Solvent resistance was determined using cured (24 hrs RT + 2 hrs 160°F) samples (1/2 in. x 4 in. x 1/8 in. thickness)

immersed in the test solvent for 1 hour and 1 month. After the allotted per iod of time the sample was removed and visually

examined for surface attack as compared to the control.

3M™Scotch-Weld™

Epo xy Adhesives

DP125 T ranslucent and Gra y

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3M™EPX™

Pneumatic A pplicator

Delivery Rates 1/4 in. Nozzle

Adhesive* gms/minute

3M™ Scotch-Weld™ Epoxy Adhesive DP125 Translucent 63.6

3M™ Scotch-Weld™ Epoxy Adhesive DP125 Gray 26.4

50 ml A pplicator – Maximum Pr essure 50 psi

*Tests were run at a temperature of 70°F ± 2°F (21°C ± 1°C) and at maximum applicator pressure.

Handling/Curing

Information Directions For Use

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

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

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

the environmental aging resistance desired by user. For specific surface preparations

on common substrates, see the section on surface preparation.

2. Use gloves to minimize skin contact. Do not use solvents for cleaning hands.

3. Mixing.

For Duo Pak Cartridges

3M™ Scotch-Weld™ Epoxy Adhesi v es DP125 Translucent and Gray are supplied

in a dual syringe plastic duo-pak cartridge as part of the 3M™ EPX™ Applicator

System. To use, simply insert the duo-pak cartridge into the EPX applicator and start

the plunger into the cylinders using light pressure on the trigger. Next, remov e the duo-

pak cartridge cap and expel a small amount of adhesive to be sure both sides of the

duo-pak cartridge are flo wing evenly and freely. If automatic mixing of Part A and

Part B is desired, attach the EPX applicator mixing nozzle to the duo-pak cartridge

and begin dispensing the adhesive. For hand mixing, expel the desired amount of

adhesi ve and mix thoroughly. Mix approximately 15 seconds after uniform color is

obtained.

For Bulk Containers

Mix thoroughly by weight or volume in the proportions specified in the typical

uncured properties section. Mix approximately 15 seconds after uniform color is

obtained.

4. For maximum bond strength, apply adhesi ve ev enly to both surf aces to be joined.

5. Application to the substrates should be made within 20 minutes. Larger quantities

and/or higher temperatures will reduce this working time.

6. Join the adhesiv e coated surf aces and allow to cure at 60°F (16°C) or abov e until

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

cure in 7 days @ 75°F (24°C).

7. Keep parts from mo ving during cure. Contact pressure necessary. Maximum shear

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

8. Excess uncured adhesiv e can be cleaned up with k etone type solvents.*

*Note: When using solv ents, extinguish all ignition sources, including pilot lights, and

follo w manuf acturer’s precautions and directions for use.

Adhesive Co v erage (typical): A 0.005 in. thick bondline will yield a co verage of

320 sq. ft./gallon.

3M™Scotch-Weld™

Epo xy Adhesives

DP125 T ranslucent and Gra y

- 6 -

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

and all other surface contaminants must be completely remo v ed. However , the

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

environmental aging resistance desired by user.

The follo wing cleaning methods are suggested for common surf aces:

Steel:

1. W ipe free of dust with oil-free solv ent such as acetone, isoprop yl or alcohol

solvents.*

2. Sandblast or abrade using clean fine grit abrasi ves.

3. W ipe again with solv ent to remove loose particles.*

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

Aluminum:

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

for 10-20 minutes. Rinse immediately in large quantities of cold running w ater.

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

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.

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

Note: Read and follo w supplier’s en vironmental, health, and safety documentation for

these chemicals prior to preparation of this solution.

Plastics/Rubber:

1. W ipe with isoprop yl alcohol.*

2. Abrade using fine grit abrasi ves.

3. Wipe with isoprop yl alcohol.*

Glass:

1. Solvent wipe surface using acetone or MEK.*

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

Metal Primer EC3901 to the glass surfaces to be bonded and allow the primer to dry

before bonding.

*Note: When using solv ents, e xtinguish all ignition sources, including pilot lights, and

follo w manuf acturer’s precautions and directions for use.

A pplication Equipment

Suggestions For small or intermittent applications the 3M™ EPX™ Applicator System is a

convenient method of application.

For larger applications these products may be applied by use of flow equipment.

Two part meter/mixing/proportioning/dispensing equipment is a vailable for

intermittent or production line use. These systems may be desirable because of their

v ariable shot size and flow rate characteristics and are adaptable to many applications.

3M™Scotch-Weld™

Epo xy Adhesives

DP125 T ranslucent and Gra y

- 7 -

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

Shelf Life These products have a shelf life of two years in their unopened original bulk

containers and 15 months in duo-pak cartridges.

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.

Precautionary

Information

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

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 Industrial Adhesives and Tapes Division product was manufactured under a 3M quality system registered to ISO 9001:2000 standards.

ISO 9001: 2000

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

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/industrial

3M, Scotch-Weld and EPX are

trademarks of 3M Company.

Printed in U.S.A.