3
Scotch-WeldTM
Epoxy A dh esi ves
D P- 100 Clear •D P- 100 NS T ranslucent
Product Description 3M™ Scotch-Weld™ Epoxy Adhesi v es DP-100 and DP-100NS are tw o-part
adhesi v es offering f ast cure and machinability.
Available in larger containers lik e 3M™ Scotch-Weld™ Epoxy Adhesiv es 100 B/A
or 100 NS B/A.
Features • Easy mixing
• High Flow (Scotch-Weld DP-100 Clear)
• Non-Sag (Scotch-Weld DP-100 NS Translucent)
• Fast Cure
• Scotch-Weld DP-100 meets UL 94 HB
Technical Data December, 2009
Typical Uncured
Physical Pr operties Note: The follo wing technical information and data should be considered r epresentativ e
or typical only and should not be used for specification pur poses.
Product 3M™ Scotch-Weld™ Epoxy Adhesive
DP-100 Clear DP-100 NS Translucent
Viscosity1Base 8,000-15,000 cps 90,000-150,000 cps
@ 73°F (23°C) Accelerator 9,000-16,000 cps 50,000-85,000 cps
Base Resin Epoxy Epoxy
Color Clear/Lt. Amber4Translucent4
Net Weight Base 9.5-9.9 9.6-10.0
(Lbs./Gallon) Accelerator 9.2-9.6 9.2-9.6
Mix Ratio (B:A) Volume 1 : 1 1: 1
Weight 1 : 0.98 1 : 0.96
Worklife210 g mixed 5 minutes 5 minutes (Gel time3)
@ 73°F (23°C)
1. Viscosity determined using 3M test method C-1d. Procedure involv es Brookfield RVF, #6 spindle, 20 rpm and 80°F (27°F).
(100 Clear) and #6 spindle, 4 rpm and 80°F (27°F) (100 NS). Measurement taken after 1 minute.
2. W orklife determined using 3M test method C-548. Procedure involves periodically measuring a 10 gram mixed mass for
spreading and wetting properties. This time approximates the usable w orklife in an EPX applicator nozzle.
3. Gel time determined using 3M test method C-554. Procedure involv es periodically checking a 10 g r am mixed mass for flowing
properties.
4. Color may vary from nearly white to yellow/amber. Adhesive performance is not affected by color variation.
3M™Scotch-Weld™
Epo xy Adhesives
D P-100 Clear • DP-100 NS T ranslucent
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Product 3M™ Scotch-Weld™ Epoxy Adhesive
DP-100 Clear DP-100 NS Translucent
Physical:
Color Translucent11 Translucent11
Shore D Hardness 80-85 80-85
(ASTM D 2240)
Time to Handling Strength515-20 min. @ 23°C (73°F) 15-20 min. @ 23°C (73°F)
Cure Time624-48 hours @ 23°C (73°F) 24-48 hours @ 23°C (73°F)
Electrical:
Dielectric Strength 860 volts/mil 1100 volts/mil
(ASTM D 149)
Volume Resistivity 3.5 x 1012 ohm-cm 2.2 x 1014 ohm-cm
(ASTM D 257)
Thermal:
Wt. loss by Thermal 5% @ 307°C (585°F)
Gravimetric Analysis7
Glass Transition Temp833°C (91°F) 34°C (86°F)
Coefficient of Thermal960 x 10-6 (-40°C to +20°C) 29 x 10-6 (-50°C to +30°C)
Expansion (in./in./°C) (-38°F to +68°F) (-56°F to +86°F)
209 x 10-6 (60°C to 120°C) 149 x 10-6 (50°C to 110°C)
(+140°F to +248°F) (+122°F to +230°F)
Thermal Conductivity10 0.107 @ 46°C (115°F) 0.106 @ 45°C (113°F)
(btu-ft./sq. ft.-hr. °F)
Typical Cured
Properties Note: The following technical information and data should be considered representati v e
or typical only and should not be used for specification purposes.
5. Handling strength determined per 3M test method C-3179. Time to handling strength is the time required to achieve 50 psi
OLS strength to aluminum.
6. The cure time is defined as the time required for the adhesive to achieve a minimum of 80% of its ultimate OLS on aluminum.
7. Weight loss by Thermal Gravimetric Analysis reported as that temperature at which 5% weight loss occurs by TGA in air at 5°C
(41°F) rise per minute per ASTM 1131-86 Test Procedures.
8. Glass transition temperature (Tg) determined using Perkin Elmer (DSC) Analyzer with a heating rate of 20°C (68°F) per min ute.
Second heat values giv en.
9. Coefficient of thermal expansion determined using DuPont (TMA) using a heating r ate of 10°C (50°F) per minute . Second heat
values giv en.
10. Thermal conductivity determined using ASTM C177 and C-matic Instrument with 2 in. diameter samples.
11. Color may vary from nearly white to yellow/amber. Adhesive performance is not affected by color variation.
3M™Scotch-Weld™
Epo xy Adhesives
D P-100 Clear • DP-100 NS T ranslucent
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Handling/Curing
Information 1. For optimum strength structural bonds, paint, oxide f ilms, 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. For specif ic surf ace preparations on
common substrates, see the follo wing section on Surf ace Preparation.
2. Use gloves to minimize skin contact with adhesive.
3. These products consist of two parts.
Mixing and A pplying
F or Duo-P ak Cartridges - 50 ml
3M™ Scotch-Weld™ DP-100 and DP-100 NS Adhesi v es are suppled in a dual syringe
plastic Duo-Pak cartridge as part of the 3M™ Scotch-Weld™ 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, remove 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 mixing of Part A and P art B is desired, attach the EPX
mixing nozzle to the Duo-Pak cartridge and begin dispensing the adhesive. For hand
mixing, expel the desired amount of adhesive and mix thoroughly. Mix approximately
15 seconds after uniform color is obtained.
F or Duo-P ak Cartridges - 200/400 ml
Directions for Use: While holding cartridge in an upright position, remov e insert from
Duo-Pak cartridge by unscrewing plastic nut. Detach metal remov al disc from insert to
free plastic nut for nozzle attachment. Clear orifices if necessary. Attach mixing nozzle
and secure with plastic nut. Place cartridge into EPX Applicator. Dispense a small
quantity of adhesi v e to assure both components are dispensing equally. Apply adhesive
to clean surfaces, join parts, secure until set up (20 minutes @ 75°F [24°C]). Lea ve
nozzle attached to store. Replace nozzle after storage.
F or 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 adhesive e venly to both surfaces to be joined.
5. Application to the substrates should be make within 5 minutes. Lar ger quantities
and/or higher temperatures will reduce this working time.
6. Join the adhesi v 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
fully cure in 24-48 hours @ 75°F (24°C).
7. K eep parts from mo ving during cure. Contact pressure is necessary. Maximum shear
strength is obtained with a 3-5 mil bond line.
8. Excess uncured adhesi v e can be cleaned up with k etone type solvents.*
*Note: When using solvents, e xtinguish all ignition sources and follow the
manufacturer’s precautions and directions for use.
Adhesive Co v erage: A 0.005 in. thick bondline will typically yield a cov erage of
320 sq. ft./gallon.
3M™Scotch-Weld™
Epo xy Adhesives
D P-100 Clear • DP-100 NS T ranslucent
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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 remo v ed. However , the
amount of surface preparation directly depends on the required bond strength and the
environmental aging resistance desired by the 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 or isoprop yl alcohol.*
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. Vapor Degrease: Perchlorethylene condensing v apors for 5-10 minutes.
2. 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.
3. 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
4. Rinse: Rinse panels in clear running tap water.
5. Dry: Air dry 15 minutes and force dry 10 minutes at 150°F ± 10°F (66°C ± 5°C).
6. If primer is to be used, it should be applied within 4 hours after surface preparation.
Plastics/Rubber:
1. W ipe with isoprop yl alcohol.*
2. Abrade using fine grit abrasi ves.
3. Wipe with isoprop yl alcohol.*
*Note: When using solvents, e xtinguish all ignition sources and follow the
manufacturer’s precautions and directions for use.
A pplication Equipment
Suggestions For small or intermittent applications the 3M™ Scotch-Weld™ EPX™ applicator is
a convenient method of application.
For larger applications these adhesiv es may be applied by use of flow equipment.
Two-part meter/mixing/dispensing equipment is a vailable for intermittent or
production line use. These systems may be desirable because of their v ariable shot
size and flo w rate characteristics and are adaptable to man y applications.
3M™Scotch-Weld™
Epo xy Adhesives
D P-100 Clear • DP-100 NS T ranslucent
Typical Adhesive
Performance
Characteristics
Note: The following product performance data was obtained in the 3M laboratory
under the conditions specified. The following data shows typical r esults obtained
with 3M™ Scotch-Weld™ Epoxy Adhesives DP-100 and DP-100 NS when applied
to properly prepared substrates, cured for 7 days at 73°F (23°C) under 2 psi cure
pressure, and tested according to the test methods indicated.
The follo wing technical information and data should be considered r epresentative
or typical only and should not be used for specification purposes.
A. Overlap Shear
Overlap shear (OLS) strengths were measured on 1 in. wide 1/2 in. o verlap
specimens. These bonds were made indi vidually using 1 in. x 4 in. pieces of
substrate except for aluminum. Two panels 0.063 in. thick, 4 in. x 7 in. of 2024 T-3
clad aluminum were bonded and cut into 1 in. wide samples after 24 hours. The
thickness of the bond line was 0.005 - 0.008 in. All strengths were measured at
73°F (23°C) except where noted. (Tests per ASTM D 1002-72.)
The separation rate of the testing jaws w as 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.; rubbers, 0.125 in.;
plastics, 0.125 in.
B. T-peel
T-peel strengths were measured on 1 in. wide bonds at 73°F (23°C). The testing
jaw separation rate w as 20 inches per minute. The substrates were 0.032 in. thick.
(Tests per ASTM D 1876-61T.)
C. Cure Cycle
With the exception of Rate of Strength Build-Up Tests, all bonds were cured
7 days at 73°F (23°C)/50% RH before testing or subjected to further conditioning
or environmental aging.
Etched Aluminum, Overlap Shear, at temperature (psi)
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3M™ Scotch-Weld™ Epoxy Adhesive
Test Temp. °F (°C) DP-100 Clear DP-100 NS Translucent
-67°F (-53°C) 900 900
73°F (23°C) 1500 1500
180°F (82°C) (15 min.)1300 300
1Represents time in test chamber oven before test.
3M™ Scotch-Weld™ Epoxy Adhesive
DP-100 Clear DP-100 NS Translucent
Aluminum- Etched 1500 1500
MEK/abrade/MEK 950 570
Cold Rolled Steel- MEK/abrade/MEK 1000 890
Copper- MEK/abrade/MEK 950 1140
Brass- MEK/abrade/MEK 700 500
Stainless Steel- MEK/abrade/MEK 750 840
Galvanized Steel- MEK/abrade/MEK 900 1080
Metals, Overlap Shear, Tested @ 73°F (23°C) (psi)
3M™Scotch-Weld™
Epo xy Adhesives
D P-100 Clear • DP-100 NS T ranslucent
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Typical Adhesive
Performance
Characteristics
(continued)
Other Substrates, Overlap Shear tested @ 73°F (23°C) (psi)
All cleaned by alcohol wipe, abrade, alcohol wipe.
3M™ Scotch-Weld™ Epoxy Adhesive
DP-100 Clear DP-100 NS Translucent
ABS 490 180
PVC 330 240
Polycarbonate 250 120
Polyacrylic 100 150
FRP 950 680
SBR/Steel 125 230
Neoprene/Steel 140 60
Nitrile/Steel 140 90
Note: The data sho wn here was generated using the 3M™ Scotch-Weld™ EPX™
Applicator System equipped with an EPX static mixer according to
manufacturer’s directions. Thorough hand mixing will afford comparable results.
Rate of Strength Build-Up
Aluminum, Overlap Shear (7 mil Bondline) (psi)
Bonds Tested at 73°F (23°C)
Compression Strength (ASTM D 695-68T)
3M™ Scotch-Weld™ Epoxy Adhesive
Time DP-100 Clear DP-100 NS Translucent
10 minutes 0 200
20 minutes 400 220
3M™ Scotch-Weld™ DP-100 Clear Adhesive 8400 psi @ 73°F (23°C)
3M™ Scotch-Weld™ DP-100 NS Translucent Adhesive 8400 psi @ 73°F (23°C)
3M™ Scotch-Weld™ Epoxy Adhesive
DP-100 Clear DP-100 NS Translucent
Aluminum etched 17-20 mil bondline 2 2
5-8 mil bondline 2 2
Cold Rolled Steel 17-20 mil bondline
MEK/abrade/MEK 2 2
Aluminum, T-peel (piw), tested @ 73°F (23°C) (psi)
Note: The follo wing technical information and data should be considered r epresentative
or typical only and should not be used for specification purposes.
3M™Scotch-Weld™
Epo xy Adhesives
D P-100 Clear • DP-100 NS T ranslucent
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1. Viscosity determined using 3M test method C-1d. Procedure involv es Brookfield RVF, #6 spindle, 20 rpm and 80°F (27°F).
(100 Clear) and #6 spindle, 4 rpm and 80°F (27°F) (100 NS). Measurement taken after 1 minute.
10. Solvent resistance w as determined using cured (24 hrs RT + 2 hrs 160°F [71°C]) 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 allowed period of time, the sample was removed and visually
examined for surface attack as compared to the control.
Solvent Resistance:10
(Visual check after immersion in specified solvent at 73°F [23°C]).
3M™ Scotch-Weld™ Epoxy Adhesive
DP-100 Clear DP-100 NS Translucent
1 Hour 1 Month 1 Hour 1 Month
Acetone A A A A
Isopropyl Alcohol A B A B
Freon TF A A A A
Freon TMC A A A A
1, 1, 1-Trichlorethane A B A B
RMA Flux A A A A
Key: A - Unaffected; B - Slight Attack; C - Moderate/Severe Attack
Typical Adhesive
Performance
Characteristics
(continued) Environmental Resistance
Aluminum (Etched)
Measured by Ov erlap Shear tested 73°F (23°C) psi1
3M™ Scotch-Weld™ Epoxy Adhesive
Environment Condition DP-100 Clear DP-100 NS Translucent
73°F (23°C)/50% RH 30 days 1500 1500
Water Vapor 160°F/100 RH, 3 days 1500 1500
Note: The follo wing technical information and data should be considered r epresentative
or typical only and should not be used for specification purposes.
3M™Scotch-Weld™
Epo xy Adhesives
D P-100 Clear • DP-100 NS T ranslucent
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Storage and Shelf Life Storage: Store products at 60-80°F (16-27°C) for maximum storage life. Rotate on
“first in-first out” basis.
Shelf Life: When stored as recommended in original unopened container , this
product has a shelf life of 15 months.
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
3M, Scotch-Weld and EPX are
trademarks of 3M Company.
Printed in U.S.A.
©3M 2009 78-6900-9674-4 (12/09)
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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
