3
Scotch-WeldTM
Epo xy Adhesi ves
D P190 T ranslucent and Gra y
Product Description 3M™ Scotch-Weld™ Epoxy Adhesi v e DP190 Translucent is a 1:1 mix ratio similar to
3M™ Scotch-Weld™ Epoxy Adhesi v e 2216 B/A Translucent b ut f aster curing.
3M™ Scotch-Weld™ Epoxy Adhesi v e DP190 Gray is a 1:1 by volume mix ratio of
3M™ Scotch-Weld™ Epoxy Adhesiv e 2216 B/A Gray and e xhibits good peel, shear
and environmental aging properties.
Available in bulk containers as 3M™ Scotch-Weld™ Epoxy Adhesive 2216 B/A.
Features • 90 minute worklife • High shear and peel strength
• Flexible • 1:1 mix ratio
• Translucent or gray color
Technical Data April, 2010
Typical Uncured
Physical Pr operties 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
DP190 Translucent DP190 Gray
Base Resins Epoxy/Amine Epoxy/Amine
Viscosity1, Approximate Base (B) 2,000-8,000 cps 75,000-150,000 cps
@ 75°F Accelerator (A) 7,000-15,000 cps 40,000-80,000 cps
Net Weight Base (B) 9.3-9.7 11.0-11.4
(Lbs./gal.) Accelerator (A) 8.2-8.6 10.6-11.0
Color Base (B) Clear White
(Lbs./gal.) Accelerator (A) Amber Gray
Mix Ratio (B:A) By Volume 1:1 1:1
By Weight 1.15:1 1.06:1
Worklife22 gram 80 min. —
@ 73°F (23°C) 20 gram 60 min. 90 min.
Footnotes:
1. Viscosity determined using 3M test method C-1D . Procedure involves Brookfield RVF, #7 spindle, 20 rpm and 80°F (26°C).
Measurement taken after 1 minute rotation.
2. Worklif e determined using 3M test method C-3180. Procedure involves periodically measuring 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
D P190 T ranslucent and Gra y
- 2 -
Typical Cured
Properties
3M™ Scotch-Weld™ 3M™ Scotch-Weld™
Epo xy Adhesive Epoxy Adhesive
DP190 Translucent DP190 Gray
Color Translucent Gray
Hardness (ASTM D 2240)
Shore D 35 60
Worklife280 minutes 90 minutes
Tack-free Time3~ 4 hrs ~ 6 hrs
Time to Handling Strength46 hrs 8-12 hrs
Full Cure Time514 da ys 7 days
Elongation6120% 30%
Tensile Strength62750 psi 3500 psi
Physical
Scotch-Weld Scotch-Weld
Epo xy Adhesive Epo xy Adhesive
DP190 Translucent DP190 Gray
W eight Loss by Thermal Gravimetric 1% @ 390°F (199°C) 1% @ 477°F (247°C)
Analysis (TGA)75% @ 594°F (312°C) 5% @ 639°F (337°C)
Thermal Coefficient of Expansion (TCE)
by TMA8(∞x 10-6 units/unit/°C)
Below Tg 86 (41-68°F 62 (41-68°F
[5-20°C] range) [5-25°C] range)
Above Tg 166 (167-284°F 177 (167-284°F
[75-140°C] range) [65-140°C] range)
Glass Transition Temperature
(Tg) by DCS9
Onset 50°F (10°C) 45°F (7°C)
Mid-Point 80°F (27°C) 68°F (20°C)
Thermal Conductivity10
(@ 110°F on .250 in. samples)
BTU - ft./ft.2- hr. - °F) .079 .220
Cal./sec. - cm - °C) .39 x 10-3 90.9 x 10-2
Watt/m - °C .136 .381
Thermal Shock Resistance11
Potted Washer Ol yphant Test Pass 5 cycles Pass 5 cycles
(3M ITSD 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
DP190 Translucent DP190 Gray
Dielectric Constant @ 1 KHZ@ 73°F (23°C) 6.2 6.5
(ASTM D 150)
Dissipation Factor@ 1 KHZ@ 73°F (23°C) 0.16 0.09
(ASTM D 150)
Dielectric Strength 875 volts/mil 830 volts/mil
(ASTM D 149)
Sample Thickness Appr ox. 30 mil.
Volume Resistivity 7.5 x 1010 ohm-cm 5.0 x 1012 ohm-cm
(ASTM D 257)
Electrical
Note: The follo wing technical information and data should be considered r epresentative
or typical only and should not be used for specification purposes.
Footnotes:
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
adhesive transfer 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 was 2
inches per minute. Samples cured
2 hrs RT plus 2 hrs/ 160°F (71°C).
7. W eight 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
50°F (10°C) per minute. Second
heat values given.
9. Glass Transition Temperature (Tg)
determined using DSC Analyzer
with a heating rate of 68°F (20°C)
per minute. Second heat values
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. Involves
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
D P190 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
DP190 Translucent DP190 Gray
Etched Aluminum 1800 psi 2500 psi
Sanded Aluminum (60 grit) 850 psi 1500 psi
Cold Rolled Steel 850 psi 1400 psi
W ood, Fir 650 psi 1100 psi
Glass, Borosilicate 260 psi 300 psi
Glass, +3M™ Scotch-Weld™ Primer 3901 300 psi 300 psi
Polycarbonate 400 psi 800 psi
Acrylic 350 psi 500 psi
Fiberglass 1000 psi 1600 psi
ABS 400 psi 700 psi
PVC 650 psi 800 psi
Polypropylene 90 psi 50 psi
Overlap Shear Str ength (OLS) to12
(Bonds cured 24 hrs @ RT + 2 hrs 160°F [71°C])
The follo wing product performance data were 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 were 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 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
Epo xy Adhesive Epo xy Adhesive
DP190 Translucent DP190 Gray
1 hr @ R T 10 psi 10 psi
6 hrs @ R T 200 psi 50 psi
24 hrs @ R T 800 psi 1000 psi
7 da ys @ RT 1200 psi 2000 psi
1 mo @ R T 1800 psi 2200 psi
3 mos @ R T 1800 psi 2500 psi
Rate of Strength Buildup
(OLS on Etched Aluminum)12 Bonds tested after:
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 (21°C) 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.
3M™Scotch-Weld™
Epo xy Adhesives
D P190 T ranslucent and Gra y
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Typical Adhesive
Performance
Characteristics
(continued)
Scotch-Weld Epoxy Adhesive Scotch-Weld Epoxy Adhesive
DP190 Translucent DP190 Gra y
-67°F (-55°C) 3500 psi 1500 psi
70°F (21°C) 1200 psi 2500 psi
120°F (49°C) 290 psi 1000 psi
150°F (66°C) 200 psi 600 psi
180°F (82°C) 160 psi 400 psi
Overlap Shear Str ength vs Temperature12
(Bonds cured 24 hr @ RT + 2 hrs @ 160°F [71°C]) Bonds tested at:
Scotch-Weld Epoxy Adhesive Scotch-Weld Epoxy Adhesive
DP190 Translucent DP190 Gray
-67°F (-55°C) 3 piw 3 piw
70°F (21°C 20 piw 20 piw
120°F (49°C) 3 piw 10 piw
150°F (66°C) 2 piw 4 piw
180°F (82°C) 1 piw 2 piw
180°F Peel Strength vs Temperature12
(Bonds cured 24 hr @ RT + 4 hrs @ 160°F [71°C]) Bonds tested at:
Scotch-Weld Epoxy Adhesive Scotch-Weld Epoxy Adhesive
DP190 Translucent DP190 Gray
Acetone A/A A/A
Isoprop yl Alcohol A/A A/A
Freon TF A/A A/A
Freon TMC A/B A/A
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 Resistance13 One Hour/One Month One Hour/One Month
3M™ Scotch-Weld™ 3M™ Scotch-Weld™
Epo xy Adhesive Epoxy Adhesive
DP190 Translucent DP190 Gray
24 hrs R T + 2 hrs @ 160°F (71°C) 1700 psi 2500 psi
24 hrs R T + 2 hrs @ 240°F (115°C) 3200 psi 3000 psi
1 wk R T + wk @ 90°F/90% RH 1400 psi 2400 psi
1 wk R T + 1 wk 248°F (120°C) 3500 psi 3500 psi
1 wk R T + 1 wk H2O Immersion 1700 psi 2500 psi
Environmental Aging
(OLS on Etched Aluminum)12 Bonds tested after:
Note: The follo wing technical information and data should be considered r epresentative
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. 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
(21°C) 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 f or 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.
13. Solvent resistance was 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 allotted period of
time the sample was removed and
visually examined for surface
attack as compared to the control.
3M™Scotch-Weld™
Epo xy Adhesives
D P190 T ranslucent and Gra y
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3M™EPX™
Pneumatic A pplicator
Delivery Rates 6mm Nozzle 10mm Nozzle
Adhesive* gms/minute gms/minute
3M™ Scotch-Weld™ Epoxy Adhesive DP190 Gray 11.9 46.0
200 ml A pplicator – Maximum Pr essure 58 psi
1/4 in. Nozzle
Adhesive* gms/minute
3M™ Scotch-Weld™ Epoxy Adhesive 112
DP190 Translucent
Scotch-Weld epoxy adhesive DP190 Gray 16.9
Scotch-Weld epoxy adhesive DP190 Gray 21.5 (nozzle cut back 2 divisions)
Scotch-Weld epoxy adhesive DP190 100°F (38°C) 41.1
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 removed. However, the amount
of surface preparation necessary directly depends on the required bond strength and the
environmental aging resistance desired by the user. For suggested surface preparations
on common substrates, see the section on surface preparation.
2. Mixing
For Duo Pak Cartridges
3M™ Scotch-Weld™ Epoxy Adhesiv es DP190 Translucent and DP190 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, e xpel the desired amount of adhesive 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.
3. For maximum bond strength, apply adhesive evenly to both surfaces to be joined.
4. Application to the substrates should be made within 75 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
completely firm. Heat up to 200°F (93°C) will speed curing. These products will cure in
7 to 14 days @ 75°F (24°C).
6. K eep parts from mo ving during cure. Contact pressure necessary. Maximum shear strength
is obtained with a 3-5 mil bond line.
7. Excess uncured adhesive can be cleaned up with ketone type solvents.*
*Note: When using solvents, e xtinguish all ignition sources, including pilot lights, and follow
manufacturer’s precautions and directions for use.
Adhesive Coverage (typical): A 0.005 in. thick bondline will yield a coverage of
320 sq. ft./gallon.
3M™Scotch-Weld™
Epo xy Adhesives
D P190 T ranslucent and Gra y
- 6 -
Surface Preparation For high strength structural bonds, paint, oxide f ilms, oils, dust, mold release agents
and all other surface contaminants must be completely remo v ed. Ho wever, the amount
of surface preparation necessary 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, 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 (87°C) ±
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 (65°C)
±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 (65°C) ± 10°F.
5. 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.*
Glass:
1. Solvent wipe surface using acetone or MEK.*
2. Apply a thin coating (0.0001 in. or less) of 3M™ Scotch-Weld™ Metal Primer
EC3901 or equi valent to the glass surfaces to be bonded and allo w 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 smaller or intermittent applications, the 3M™ EPX™ Applicator 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
D P190 T ranslucent and Gra y
- 7 -
Storage Store products at 60-80°F (15-27°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 containers from date of shipment.
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
3
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.
©3M 2010 78-6900-2952-1 (4/10)
