Technical Data | November 2015
3M
™
Scotch-Weld
™
Epoxy Adhesive DP-460EG
Product Description
3M™ Scotch-Weld™ Epoxy Adhesive DP-460EG is designed to have lower outgassing and lower ionics than
3M™ Scotch-Weld™ Epoxy Adhesive DP-460. Laboratory testing has shown that 3M™ Scotch-Weld™ Epoxy
Adhesive DP-460EG’s curing and adhesive performance to be comparable to 3M™ Scotch-Weld™ Epoxy
Adhesive DP-460.
Application Ideas
•
•
•
•
Hard Disk Drive Assembly
Spindle Motor Assembly
Magnet Bonding
E-Block Assembly
•
•
•
Bearing Cartridge Assembly
Potting
Rigidizing
Key Features
•
•
•
Curing and bonding performance comparable to 3M™ Scotch-Weld™ Epoxy Adhesive DP-460.
Total outgassing < 1000 µg/g (via GC/MS, 85°C for 3 hours).
Lower chloride ion content than standard epoxies.
• Siloxane outgassing ≤ 5 µg/g (via GC/MS, 85°C for 3 hours).
Typical 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 DP460EG
Viscosity
(at 72°F [23°C])
Base Resin
Color
Net Weight
(lb/gallon)
Mix Ratio
(B:A)
Worklife (72°F [23°C])
Thermal Conductivity, (btu-ft./sq.ft.-hr.ºF)
Thermal Coefficient of Expansion, (in./in./ºC)
Dielectric Constant, (1 KHZ @ 23ºC)
Dielectric Strength, (volts/mil.)
Base
Accelerator
Mixed
Base
Accelerator
Base
Accelerator
Base
Accelerator
Volume
Weight
25,000 - 45,000 cps
8,000 - 14,000 cps
15,000 - 25,000 cps
Epoxy
Amine
White
Amber
9.4
9.0
2:1
2:0 : 0.96
110 minutes
0.104 @ 45ºC
59 x 10
-6
(-50ºC to 30ºC)
159 x 10
-6
(50ºC to 110ºC)
4.7
510 (43 mil)
3M
™
Scotch-Weld
™
Epoxy Adhesive DP-460EG
Curing
Note:
The following technical information and data should be considered representative or typical only and
should not be used for specification purposes.
This adhesive will cure in 24 hours at room temperature. Heating will accelerate the cure and can result in a higher
T
g
than room temperature curing yields. Curing data is shown in the figure below.
Time to Reach maximum T
g
(°C) for
3M™ Scotch-Weld™ Epoxy Adhesive DP-460EG
Cured using Various Conditions
1600
1400
80
70
T
g
1200
60
Cure Time (minutes)
Resulting T
g
(°C)
1000
800
600
50
40
Cure Time (min)
Time
T
g
(°C)
30
20
10
0
140
400
200
0
0
20
40
60
80
100
120
Cure Temperature (°C)
Note:
If the adhesive has become grainy or lumpy in appearance when dispensed, this may be due to crystallization
of the adhesive. This can be corrected by heating the adhesive in the syringe to 120°F (49°C) for 30 minutes,
then allowing the adhesive to cool before dispensing.
(2)
3M
™
Scotch-Weld
™
Epoxy Adhesive DP-460EG
Typical Performance Characteristics
1
Note:
The following technical information and data should be considered representative or typical only and
should not be used for specification purposes.
Shear and Peel Strength vs. Cure Temperature / Time
72°F
(23°C)
24 hours
Overlap Shear
2
(lbf/in
2
)
T-Peel
3
(lbf/in)
1
See
120°F
(49°C)
270 minutes
> 5000
59
4
160°F
(71°C)
90 minutes
> 5500
43
4
200°F
(93°C)
30 minutes
> 5500
39
5
250°F
(121°C)
10 minutes
> 5500
45
5
> 5000
60
4
Technical Data Sheet 3M™ Scotch-Weld™ Epoxy Adhesive DP-460 for additional typical performance characteristics.
inch thick, etched aluminum pulled at 0.10 inches/minute. Tested in accordance with ASTM D-1002-72 test method.
3
0.032 inch thick, anodized aluminum pulled at 20 inches/minute. Tested in accordance with ASTM D1876-61T test method.
4
Cohesive failure mode.
5
Adhesive failure mode.
2
0.060
Storage and Shelf Life
Storage:
Store 3M™ Scotch-Weld™ Epoxy Adhesive DP-460EG at 60-80°F (15-27°C) or refrigerate for
maximum shelf life.
Shelf Life:
3M™ Scotch-Weld™ Epoxy Adhesive DP-460EG has a shelf life of 15 months when stored in its
original container.
(3)
3M
™
Scotch-Weld
™
Epoxy Adhesive DP-460EG
Safety Data Sheet:
Consult Safety Data Sheet before use.
Regulatory:
For regulatory information about this product, contact your 3M representative.
Technical 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.
Product 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. 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.
Warranty, Limited Remedy, and Disclaimer:
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.
Limitation of Liability:
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.
Electronics Materials Solutions Division
3M Center, Building 224-3N-11
St. Paul, MN 55144-1000
1-800-251-8634 phone
651-778-4244 fax
www.3M.com/electronics
3M and Scotch-Weld are trademark of 3M Company.
Please recycle.
©3M 2015. All rights reserved.
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(4)
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