3
Scotch-WeldTM
Epo xy Adhesi ves
D P460 Of f-White • DP460 NS
Product Description 3M™ Scotch-Weld™ Epoxy Adhesives DP460 Off-White and DP460 NS are high
performance, two-part epoxy adhesives offering outstanding shear and peel
adhesion, and very high levels of durability.
Features • High shear strength • Controlled flo w
• High peel strength • 60 minute worklife
• Outstanding environmental performance • Non sag (Scotch-Weld DP460 NS)
• Easy mixing
Technical Data March, 2004
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
Product DP460 Off-White DP460 NS
Viscosity (approx.) Base 20,000-50,000 cps 150,000-275,000 cps
@ 73°F (23°C) Accelerator 8,000-14,000 cps 8,000-14,000 cps
Base Resin Base epoxy epoxy
Accelerator amine amine
Color Base white white
Accelerator amber amber
Net Weight Base 9.3-9.7 9.3-9.7
Lbs./Gallon Accelerator 8.8-9.2 8.8-9.2
Mix Ratio (B:A) Volume 2:1 2:1
Weight 2:0.96 2:0.96
Worklife, 73°F (23°C) 20 g mixed 60 minutes 60 minutes
10 g mixed 75 minutes 60 minutes
5 g mixed 90 minutes 60 minutes
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Scotch-WeldTM
Epo xy Adhesives
DP460 Of f-White • DP460 NS
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Product 3M™ Scotch-Weld™ 3M™ Scotch-Weld™
Epoxy Adhesive Epoxy Adhesive
DP460 Off-White DP460 NS
Physical
Color Opaque, off-white Off-white
Shore D Hardness 75-80 78-84
Thermal
Coefficient of Thermal Below Tg 59 x 10-6 74.44 x 10-6
Expansion Above Tg 159 x 10-6 166 x 10-6
(in./in./°C)
Thermal Conductivity 0.104 0.104
(btu - ft./ft.2- hr. - °F) @ 45°C
Electrical
Dielectric Strength (ASTM D 149) 1100 volts/mil 727 volts/mil
Volume Resistivity (ASTM D 257) 2.4 x 1014 ohm-cm 3.25 x 1015 ohm-cm
Typical Cured
Thermal 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.
Typical Curing
Characteristics Note: The follo wing technical information and data should be considered r epresentative
or typical only and should not be used for specification purposes.
Rate of Strength Build-Up
Aluminum, Overlap Shear (7 mil Bondline) (ASTM D 1002-72)
Bonds Tested at 73°F (23°C)
Scotch-Weld Epoxy Adhesive DP460 Off-White
Time in Oven Cure Temperature
73°F (23°C) 120°F1(49°C) 140°F1(60°C)
30 min. — <50 3000/602
60 — 1300 4500/602
90 — 4300/602—
2 hr. — 4400/6024800
3 — 4800/602—
5 400 — —
6 1000 — —
7 3500 — —
24 4000/602
Scotch-Weld Epoxy Adhesive DP460 NS
1This represents the oven temperature to which the bonds were subjected for the prescribed time. The average bondline
temperature during the cure time will be somewhat low er than the oven temperature.
2The value in the denominator is the expected minimum 73°F (23°C) T-peel strength (piw) measured after the indicated
cure cycle.
NOTE: The data in this Technical Data Sheet were generated using the 3M™ EPX™ Applicator System equipped with
an EPX static mixer, according to manufacturer’s directions. Thorough hand-mixing will afford comparable results.
Time in Oven Cure Temperature
73°F (23°C) 120°F1(49°C) 160°F1(71°C)
15 min. — – 4860
30 — 10 5250
60 — 2800 5300
2 hr. 1 5050 5470
4 46 5400 5320
6 970 5570 5140
24 4500 – 5210
Scotch-WeldTM
Epo xy Adhesives
DP460 Of f-White • DP460 NS
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Typical Adhesive
Performance
Characteristics
Note: The follo wing technical information and data should be considered r epresentative or
typical only and should not be used for specification purposes.
Substrates and Testing
A. Overlap Shear (ASTM D 1002-72)
Overlap shear (OLS) strengths were measured on 1 in. wide 1/2 in. o v erlap specimens. These
bonds were made individually using 1 in. x 4 in. pieces of substrate except for aluminum. Two
panels 0.063 in. thick, 4 in. x 7 in. of 2024T-3 clad aluminum were bonded and cut into 1 in.
wide samples after 24 hours. The thickness of the bondline was 0.005-0.008 in. All strengths
were measured at 73°F (23°C) except where noted.
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.; rubbers, 0.125 in.; plastics, 0.125 in.
B. T-peel (ASTM D 1876-61T)
T-peel strengths were measured on 1 in. wide bonds at 73°F (23°C). The testing jaw separation
rate was 20 inches per minute. The substrates were 0.032 in. thick.
C. Bell Peel (ASTM D 3167)
Bell peel strengths were measured on 1/2 in. wide bonds at the temperatures noted. The testing
jaw separation rate was 6 in. per minute. The bonds are made with 0.064 in. bonded to 0.025 in.
thick adherends.
D. Cure Cycle
With the exception of Rate of Strength Build-Up Tests, all bonds, were cured 7 days at 73°F
(23°C) at 50% RH before testing or subjected to further conditioning or environmental aging.
Aluminum, Overlap Shear, at Temperature (PSI)
3M™ Scotch-Weld™ 3M™ Scotch-Weld™
Epoxy Adhesive Epoxy Adhesive
DP460 Off-White DP460 NS
-67°F (-55°C) 4500 4900
73°F (23°C) 4500 4650
180°F (82°C) (15 min.)1700 1360
(30 min.)11000 1810
(60 min.)11400 2630
(4 hr.)12500 2680
250°F (121°C) (15 min.)1220 420
1Represents time in test chamber oven before test.
Metals, Overlap Shear, Tested @ 73°F (23°C) (PSI)
Scotch-Weld Scotch-Weld
Epoxy Adhesive Epoxy Adhesive
DP460 Off-White DP460 NS
Aluminum Etched 4500 4500
Oakite degrease 3200 2300
MEK/abrade/MEK 3500 2670
Cold Rolled Steel Oakite degrease 3500 —
MEK/abrade/MEK 2800 3600
Copper- MEK/abrade/MEK 4000 4400
Brass- MEK/abrade/MEK — 3400
CDA 260 4000 —
Cartridge 4200 —
Stainless Steel MEK/abrade/MEK 4000 2400
Galvanized Steel- Oakite degrease
Hot dipped 2000 2480
Electrodeposited 2100 3000
Scotch-WeldTM
Epo xy Adhesives
DP460 Of f-White • DP460 NS
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Typical Adhesive
Performance
Characteristics
(continued)
Note: The follo wing technical information and data should be considered r epresentative
or typical only and should not be used for specification purposes.
Substrates and Testing (continued)
Aluminum, T-Peel (PIW), at Temperature
Aluminum - etched (17-20 mil bondline)
3M™ Scotch-Weld™ 3M™ Scotch-Weld™
Epoxy Adhesive Epoxy Adhesive
DP460 Off-White DP460 NS
-67°F (-55°C) 5-10 3-5
73°F (23°C) 60 60
180°F (82°C) 3-5 20
Metals, T-Peel, Tested @ 73°F (23°C) (PIW)
Scotch-Weld Scotch-Weld
Epoxy Adhesive Epoxy Adhesive
DP460 Off-White DP460 NS
Aluminum, etched 17-20 mil bondline 60 not tested
5-8 mil bondline 50
Cold Rolled Steel 17-20 mil bondline
Oakite degreased 40 not tested
MEK/abrade/MEK 25
Other Substrates, Overlap Shear Tested @ 73°F (23°C)
Surf. Prep. 1 Surf. Prep. 2
Scotch-Weld Scotch-Weld Scotch-Weld Scotch-Weld
Epo xy
Adhesive
Epo xy
Adhesive
Epo xy
Adhesive
Epo xy
Adhesive
Substrate
DP460 Off-White DP460 NS DP460 Off-White DP460 NS
ABS 300 345 575 572
PVC 500 8153350 3133
Polycarbonate 400 380 500 390
Polyacrylic 220 210 330 270
Polystryene 450 320 4753490
FRP 800 570 1000313793
Phenolic 14003121031400312313
SBR/Steel 1503130 14032393
Neoprene/Steel 100 90 12031143
1Isopropyl Alcohol Wipe. See Surface Preparation Section D for additional information.
2Isopropyl Alcohol/Abrade/Isopropyl Alcohol: See Surface Preparation Section E for
additional information.
3Substrate failure.
Aluminum Bell Peel (PIW), at Temperatur e (ASTM D 3167)
Scotch-Weld Epoxy Adhesive DP460 NS
-67°F (-55°C) 19
73°F (23°C) 77
180°F (82°C) 39
Scotch-WeldTM
Epo xy Adhesives
DP460 Of f-White • DP460 NS
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Typical Adhesive
Performance
Characteristics
(continued)
Note: The follo wing technical information and data should be considered r epresentative
or typical only and should not be used for specification purposes.
Substrates and Testing (continued)
Environmental Resistance
Aluminum (Etched)
Measured by Ov erlap Shear Tested @ 73°F (23°C) (PSI)1(ASTM D 1002-72)
3M™ Scotch-Weld™ 3M™ Scotch-Weld™
Epoxy Adhesive Epoxy Adhesive
Environment Condition
DP-460 Off-White DP-460 NS
73°F (23°C)/50% RH 30 d25200 5460
Distilled Water 30 d, i35100 4550
Water Vapor 120°F (49°C)/100% RH, 30 d 4500 3920
200°F (93°C)/100% RH, 14 d 3100 3370
Antifreeze/H2O (50/50) 180°F (82°C), 30 d, i 5000 4400
Isopropyl Alcohol 73°F (23°C), 30 d, i 5700 5320
Methyl Ethyl Ketone 73°F (23°C), 30 d, i 4200 4000
Salt Spray (5%) 95°F (35°C), 30 d 5100 5200
Skydrol LD-4 150°F (66°C), 30 d, i 3700 5250
1Data reported are actual values from the lots tested and may be higher than values published
elsewhere in this Technical Data Sheet.
2d = da ys
3i = immersion
Environmental Resistance
Galvanized Steels1
Measured by Ov erlap Shear Tested @ 73°F (23°C) (PSI)2(ASTM D 1002-72)
Hot Dipped Electrodeposited
Scotch-Weld Scotch-Weld Scotch-Weld Scotch-Weld
Epoxy Epoxy Epoxy Epoxy
Adhesive Adhesive Adhesive Adhesive
DP460 DP460 DP460 DP460
Environment Condition
Off-White NS Off-White NS
73°F (23°C)/50% RH 30 d32200
not tested
2300
not tested
Distilled Water 30 d, i42300
not tested
2300
not tested
Water Vapor 120°F (49°C)/100% RH, 30 d 1900
not tested
2000
not tested
200°F (93°C)/100% RH, 14 d 1500 1000
Antifreeze/H2O (50/50) 180°F (82°C), 30 d, i 2000
not tested
1950
not tested
Isopropyl Alcohol 73°F (23°C), 30 d, i 2000
not tested
2200
not tested
Methyl Ethyl Ketone 73°F (23°C), 30 d, i 2000
not tested
2200
not tested
Trichloroethane 73°F (23°C), 30 d, i 2300
not tested
2300
not tested
Salt Spray (5%) 95°F (35°C), 30d 1900
not tested
1500
not tested
1Hot dipped or electrodeposited. Galvanized steels may afford a wide spectrum of
perf ormance due to the diversity of surfaces available. The user should test to determine
specific perf ormance.
2Data reported are actual values from the lots tested and may be higher than values published
elsewhere in this Technical Data Sheet.
3d = da ys
4i = immersion
Scotch-WeldTM
Epo xy Adhesives
DP460 Of f-White • DP460 NS
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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 DP460 Off-White 31.1 132.0
200 ml A pplicator – Maximum Pr essure 58 psi
*Tests were run at a temperature of 70°F ± 2°F (21°C ± 1°C) and at maximum applicator pressure.
Handling/Application
Information Directions for Use
3M™ Scotch-Weld™ Epoxy Adhesives DP460 Off-White and DP460 NS are
supplied in dual syringe plastic duo-pak cartridges as part of the 3M™ EPX™
Applicator System. The duo-pak cartridges are supplied in 37 ml, 200 ml and 400 ml
configurations. To use the 37 ml cartridge 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
simultaneous 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.
With the 200 ml and 400 ml cartridges, the nozzle must be attached before dispensing
any material to prevent unmixed adhesive from getting into the applicator cartridge
holder. A small quantity of material should be discarded until uniform color,
consistency of product and even flow is evident.
When mixing Part A and Part B manually, the components must be mixed in the
ratio indicated in the typical uncured properties section. Complete mixing of the two
components is required to obtain optimum properties.
Two-part mixing/proportioning/dispensing equipment is a vailable for intermittent or
production line use. These systems are ideal for line uses because of their v ariable
shot size and flo w rate characteristics and are adaptable to most applications.
Scotch-WeldTM
Epo xy Adhesives
DP460 Of f-White • DP460 NS
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Surface Preparation The following surface preparations were used for substrates described in this Technical
Data Sheet.
A. Aluminum Etch
Optimized FPL Etch - 3M (test method C-2803)
1. Alkaline degrease – Oakite 164 solution (9-11 oz./gallon w ater) at 190°F ±
10°F (88°C ± 5°C) for 10-20 minutes. Rinse immediately in lar ge quantities
of cold running water (3M test method C-2802).
2. Optimized FPL Etch Solution (1 liter):
Material Amount
Distilled Water 700 ml plus balance of liter (see belo w)
Sodium Dichromate 28 to 67.3 grams
Sulfuric Acid 287.9 to 310.0 grams
Aluminum Chips 1.5 grams/liter of mixed solution
To prepare 1 liter of this solution, dissolve sodium dichromate in 700 ml of
distilled water. Add sulfuric acid and mix well. Add additional distilled water
to fill to 1 liter. Heat mixed solution to 66 to 71°C (150 to 160°F). Dissolv e
1.5 grams of 2024 bare aluminum chips per liter of mixed solution. Gentle
agitation will help aluminum dissolve in about 24 hours.
To FPL etch panels, place them in the abov e solution at 150 to 160°F (66 to
71°C) for 12 to 15 minutes.
Note: Re vie w and follow precautionary information provided by chemical
suppliers prior to preparation of this etch solution.
3. Rinse immediately in large quantities of clear running tap water.
4. Dry – air dry approximately 15 minutes follo wed by force dry at 140°F
(60°C) maximum for 10 minutes (minimum).
5. Both surface structure and chemistry play a signif icant role in determining
the strength and permanence of bonded structures. It is therefore advisable to
bond or prime freshly primed clean surfaces as soon as possible after surface
preparation in order to avoid contamination and/or mechanical damage.
Please contact your 3M sales representati v e for primer recommendations.
B. Oakite Degrease
Oakite 164 solutions (9-11 oz./gallon of water) at 190°F ± 10°F (88°C ± 5°C) for
2 minutes. Rinse immediately in large quantities of cold running w ater.
C. MEK/Abrade/MEK
Wipe surface with a methyl ethyl ketone (MEK) soaked sw ab, abrade and wipe
with a MEK soaked swab.* Allow solv ent to evaporate before applying adhesive.
D. Isopropyl Alcohol Wipe
Wipe surface with an isopropyl alcohol soaked sw ab.* Allow solvent to evaporate
before applying adhesi v e.
E. Isopropyl Alcohol/Abrade/Isopr opyl Alcohol
Wipe surface with an isopropyl alcohol soaked sw ab, abrade using clean fine grit
abrasi v es, and wipe with an isoprop yl alcohol soak ed sw ab.* Then allow solvent
to e vaporate before applying adhesiv e.
*Note: When using solv ents, e xtinguish all ignition sources, including pilot lights,
and follo w the manuf acturer’s precautions and directions for use.
Scotch-WeldTM
Epo xy Adhesives
DP460 Of f-White • DP460 NS
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Storage Store products at 60-80°F (15-27°C) or refrigerate for maximum shelf life.
Shelf Life These products have a shelf life of 15 months in original containers.
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
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.
Limitation of Liability
This Industrial Adhesives and Tapes Division product was manuf actured under a 3M quality system registered to ISO 9001 standards.
ISO 9001
To request additional product information or to arrange for sales assistance , call toll free 1-800-362-3550
or visit www.3M.com/adhesives . Address correspondence to: 3M Industrial Adhesives and Tapes Division,
Building 21-1W-10, 900 Bush Avenue, St. Paul, MN 55144-1000. Our fax number is 651-778-4244. In
Canada, phone: 1-800-364-3577. In Puerto Rico , phone: 1-787-750-3000. In Mexico , phone: 52-70-04-00.
F or Additional
Information
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.
Product Use
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, CUST OM OR USAGE OF TRADE. User is responsible f or 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.
Warranty and
Limited Remedy
Printed in U.S .A.
©3M 2004 78-6900-9780-9 (3/04)
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Industrial Business
Industrial Adhesives and Tapes Division
3M Center, Building 21-1W-10, 900 Bush Avenue
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