Scotch-WeldTM
Epoxy Adhesives
DP190 Translucent and Gray
Technical Data March 2019
Product Description 3M™ Scotch-Weld™ Epoxy Adhesive DP190 Translucent is a 1:1 mix ratio similar to
3M™ Scotch-Weld™ Epoxy Adhesive 2216 B/A Translucent but faster curing.
3M™ Scotch-Weld™ Epoxy Adhesive DP190 Gray is a 1:1 by volume mix ratio of
3M™ Scotch-Weld™ Epoxy Adhesive 2216 B/A Gray and exhibits 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
Typical Uncured
Physical Properties Note: The following technical information and data should be considered representative
or typical only and should not be used for specification purposes.
3M™ Scotch-
Weld™ Epoxy
Adhesive DP190
Translucent
3M™ Scotch-
Weld™ Epoxy
Adhesive
DP190 Gray
Base Resins
Epoxy/Amine
Epoxy/Amine
Viscosity
1
, Approximate
2,000-8,000 cps
75,000-150,000 cps
@ 75°F
7,000-15,000 cps
40,000-80,000 cps
Net Weight
9.3-9.7
11.0-11.4
(Lbs./gal.)
8.2-8.6
10.6-11.0
Color
(Lbs./gal.)
Clear
Amber
White
Gray
Mix Ratio (B:A)
1:1
1:1
1.15:1
1.06:1
Worklife
2
@ 73°F (23°C)
80 min.
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. Worklife 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™
Epoxy Adhesives
DP190 Translucent and Gray
- 2 -
3M™ Scotch-
Weld™ Epoxy
Adhesive DP190
Translucent
3M™ Scotch-
Weld™ Epoxy
Adhesive
DP190 Gray
Weight Loss by Thermal Gravimetric
1% @ 390°F (199°C)
1% @ 477°F (247°C)
Analysis (TGA)
7
5% @ 594°F (312°C)
5% @ 639°F (337°C)
Thermal Coefficient of Expansion (TCE)
86 (41-68°F
62 (41-68°F
by TMA
8
(
x 10
-6
units/unit/°C)
Below Tg
[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 DCS
9
Onset
Mid-Point
50°F (10°C)
80°F (27°C)
45°F (7°C)
68°F (20°C)
Thermal Conductivity
10
.079
.220
(@ 110°F on .250 in. samples)
BTU - ft./ft.
2
- hr. - °F)
Cal./sec. - cm - °C)
.39 x 10
-3
90.9 x 10
-2
Watt/m - °C
.136
.381
Thermal Shock Resistance
11
Potted Washer Olyphant Test
(3M ITSD Test Method C-3174
+100°C [air] to -50°C [liquid])
Pass 5 cycles
without cracking
Pass 5 cycles
without cracking
Typical Cured
Properties
Footnotes:
3. Tack-free time determined per 3M
test method C-3173. Involves
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. Separation rate was 2
inches per minute. Samples cured
2 hrs RT plus 2 hrs/ 160°F (71°C).
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
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.
Note: The following technical information and data should be considered representative
or typical only and should not be used for specification purposes.
Physical
3M™ Scotch-Weld™
Epoxy Adhesive
DP190 Translucent
3M™ Scotch-Weld™
Epoxy Adhesive
DP190 Gray
Color
Translucent
Gray
Hardness
(ASTM D 2240)
Shore D
35
60
Worklife
2
80 minutes
90 minutes
Tack-free Time
3
~ 4 hrs
~ 6 hrs
Time to Handling Strength
4
6 hrs
8-12 hrs
Full Cure Time
5
14 days
7 days
Elongation
6
120%
30%
Tensile Strength
6
2750 psi
3500 psi
Thermal
Electrical
3M™ Scotch-
Weld™ Epoxy
Adhesive DP190
Translucent
3M™ Scotch-
Weld™ Epoxy
Adhesive
DP190 Gray
Dielectric Constant
@
1 KH
Z
@
73°F (23°C)
(ASTM D 150)
6.2
6.5
Dissipation Factor
@
1 KH
Z
@
73°F (23°C)
(ASTM D 150)
0.16
0.09
Dielectric Strength
(ASTM D 149)
Sample Thickness Approx. 30 mil.
875 volts/mil
830 volts/mil
Volume Resistivity
(ASTM D 257)
7.5 x 10
10
ohm-cm
5.0 x 10
12
ohm-cm
3M™ Scotch-Weld™
Epoxy Adhesives
DP190 Translucent and Gray
- 3 -
Typical Adhesive
Performance
Characteristics
The following 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 following technical information and data should be considered representative
or typical only and should not be used for specification purposes.
Overlap Shear Strength (OLS) to12
(Bonds cured 24 hrs @ RT + 2 hrs 160°F [71°C])
3M™ Scotch-Weld™
Epoxy Adhesive
DP190 Translucent
3M™ Scotch-Weld™
Epoxy Adhesive
DP190 Gray
Etched Aluminum
1800 psi
2500 psi
Sanded Aluminum (60 grit)
850 psi
1500 psi
Cold Rolled Steel
850 psi
1400 psi
Wood, 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
Rate of Strength Buildup
(OLS on Etched Aluminum)12 Bonds tested after:
3M™ Scotch-
Weld™ Epoxy
Adhesive DP190
Translucent
3M™ Scotch-
Weld™ Epoxy
Adhesive
DP190 Gray
1 hr @ RT
10 psi
10 psi
6 hrs @ RT
200 psi
50 psi
24 hrs @ RT
800 psi
1000 psi
7 days @ RT
1200 psi
2000 psi
1 mo @ RT
1800 psi
2200 psi
3 mos @ RT
1800 psi
2500 psi
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™
Epoxy Adhesives
DP190 Translucent and Gray
- 4 -
3M™ Scotch-Weld™ Epoxy
Adhesive
DP190
Translucent
3M™ Scotch-Weld™ Epoxy
Adhesive
DP190
Gray
-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
Typical Adhesive
Performance
Characteristics
(continued)
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.
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.
Note: The following technical information and data should be considered representative
or typical only and should not be used for specification purposes.
Environmental Aging
(OLS on Etched Aluminum)12 Bonds tested after:
3M™ Scotch-Weld™
Epoxy Adhesive
DP190 Translucent
3M™ Scotch-Weld™
Epoxy Adhesive
DP190 Gray
24 hrs RT + 2 hrs @ 160°F (71°C)
1700 psi
2500 psi
24 hrs RT + 2 hrs @ 240°F (115°C)
3200 psi
3000 psi
1 wk RT + wk @ 90°F/90% RH
1400 psi
2400 psi
1 wk RT + 1 wk 248°F (120°C)
3500 psi
3500 psi
1 wk RT + 1 wk H2O Immersion
1700 psi
2500 psi
Overlap Shear Strength vs Temperature12
(Bonds cured 24 hr @ RT + 2 hrs @ 160°F [71°C]) Bonds tested at:
180°F Peel Strength vs Temperature12
(Bonds cured 24 hr @ RT + 4 hrs @ 160°F [71°C]) Bonds tested at:
3M™ Scotch-Weld™ Epoxy
Adhesive
DP190
Translucent
3M™ Scotch-Weld™ Epoxy
Adhesive
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
Solvent Resistance13 One Hour/One Month One Hour/One Month
3M™ Scotch-Weld™ Epoxy
Adhesive
DP190
Translucent
3M™ Scotch-Weld™ Epoxy
Adhesive
DP190
Gray
Acetone
A/A
A/A
Isopropyl 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 - Unaffected, B - Slight Attack, C - Moderate/Severe Attack
3M™ Scotch-Weld™
Epoxy Adhesives
DP190 Translucent and Gray
- 5 -
Adhesive*
6mm Nozzle
gms/minute
10mm Nozzle
gms/minute
3M™ Scotch-Weld™ Epoxy Adhesive DP190 Gray
11.9
46.0
3M™ EPX™
Pneumatic Applicator
Delivery Rates
200 ml Applicator – Maximum Pressure 58 psi
48.5/50 ml Applicator – Maximum Pressure 50 psi
Adhesive*
1/4 in. Nozzle
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
*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 Adhesives 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, remove the duo-pak cartridge cap
and expel a small amount of adhesive to be sure both sides of the duo-pak cartridge are
flowing 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 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. Keep parts from moving 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, extinguish 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
3M™ Scotch-Weld™
Epoxy Adhesives
DP190 Translucent and Gray
- 6 -
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 necessary directly depends on the required bond strength and the
environmental aging resistance desired by the user.
The following cleaning methods are suggested for common surfaces:
Steel:
1. Wipe free of dust with oil-free solvent such as acetone, isopropyl or alcohol
solvents.*
2. Sandblast or abrade using clean fine grit abrasives.
3. Wipe again with solvent 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 water.*
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. Wipe with isopropyl alcohol.*
2. Abrade using fine grit abrasives.
3. Wipe with isopropyl 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 equivalent to the glass surfaces to be bonded and allow the primer to
dry before bonding.
*Note: When using solvents, extinguish all ignition sources, including pilot lights, and
follow manufacturer’s precautions and directions for use.
Application 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 available for
intermittent or production line use. These systems may be desirable because of their
variable shot size and flow rate characteristics and are adaptable to many applications.
3M™ Scotch-Weld™
Epoxy Adhesives
DP190 Translucent and Gray
- 7 -
Storage Store products at 60-80°F (15-27°C) for maximum shelf life.
Shelf Life These products have a shelf life of 24 months in their unopened original
containers from date of manufacture.
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.
Technical Information The technical information, guidance, and other statements contained in this document or otherwise
provided by 3M are based upon records, tests, or experience that 3M believes to be reliable, but the
accuracy, completeness, and representative nature of such information is not guaranteed. Such
information is intended for people with knowledge and technical skills sufficient to assess and apply
their own informed judgment to the information. No license under any 3M or third party intellectual
property rights is granted or implied with this information.
Product
Selection
and 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. As a result, customer is solely responsible
for evaluating the product and determining whether it is appropriate and suitable for customer’s
application, including conducting a workplace hazard assessment and reviewing all applicable
regulations and standards (e.g., OSHA, ANSI, etc.). Failure to properly evaluate, select, and use a 3M
product and appropriate safety products, or to meet all applicable safety regulations, may result in injury,
sickness, death, and/or harm to property.
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Limited Remedy,
and Disclaimer
Unless a different warranty is specifically stated on the applicable 3M product packaging or product
literature (in which case such warranty governs), 3M warrants that each 3M product meets the
applicable 3M product specification at the time 3M ships the product. 3M MAKES NO OTHER
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ANY IMPLIED WARRANTY OR CONDITION OF MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE, OR ARISING OUT OF A COURSE OF DEALING, CUSTOM, OR USAGE
OF TRADE. If a 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
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incidental, or consequential (including, but not limited to, lost profits or business opportunity), regardless
of the legal or equitable theory asserted, including, but not limited to, warranty, contract, negligence, or
strict liability.
ISO 9001: 2000
This Industrial Adhesives and Tapes Division product was manufactured under a 3M quality system registered to ISO 9001: 2000 standards.
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/structuraladhesives
3M, Scotch-Weld and EPX are
trademarks of 3M Company.
Printed in U.S.A.
©3M 2010 78-6900-2952-1 (4/10)