Premium Carbon Conductive Grease
8481 Technical Data Sheet
8481
Description
The 8481
Premium Carbon Conductive Grease
is an electrically conductive grease with a synthetic oil
base. This product is similar to the MG 846 silicone conductive grease, but unlike its silicone counterpart
the 8481 synthetic-oil grease is essentially non-bleeding. Further, it includes corrosion inhibitors that
provide superior corrosion resistance.
Applications & Usages
The 8481 grease lubricates and improves electrical connections between sliding surfaces and parts,
ensuring good grounding connection. It is also used to improve electrical continuity between irregular and
pitted surfaces, as well as providing an economical way to protect switches against corrosion.
Features and Benefits
Improves electrical connections between irregular surfaces
Excellent corrosion resistance—Passed
ASTM B 117 >550 hours
Volume resistivity of 160
·cm
Extends the life of contacts
Silicone free
Safe on plastics
Usage Parameters
Properties
Shelf Life
a)
Value
5y
Temperature Ranges
Properties
Constant Service
Temperature
Storage Temperature
Limits
b)
Value
-68 to 165 °C
[-90 to 329 °F]
-10 to 40 °C
[14 to 104 °F]
a) Reported shelf life assumes room
temperature storage and unopened container.
b) Room temperature is acceptable. Cold storage
avoids material separation and settling. If
storing at 25 °C, mix thoroughly to disperse
filler before use.
Principal Components
Name
High Temperature, Synthetic Oil (Non-silicone based)
Carbon Black
CAS Number
proprietary
1333-86-4
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Premium Carbon Conductive Grease
8481 Technical Data Sheet
8481
Properties
Electrical Properties
Volume Resistivity (
v
)
Volume Conductivity (
v
)
Thermal Properties
Thermal Conductivity @25 °C [77 °F]
Grease Properties
Evaporation Loss, 22 h @165 °C [329 °F]
Oil Separation, 30 h @165 °C [329 °F]
Oil Separation
Dropping Point
Water Washout @38 °C [100 °F]
b)
Worked Penetration, unworked
60 strokes
10 000 strokes
Emcor Rust Test, distilled water
Salt Spray Corrosion Resistance
c)
Physical Properties
Color
Odor
Density @25 °C [77 °F]
Viscosity @25 °C [77 °F]
Lubricant
Bleed Resistant
Corrosion Resistant
VOC (Volatile Organic Compound)
Method
Mil-Std-883J Method 5011.6
"
Method
ASTM E 1461
Method
ASTM D 2595
ASTM D 6184
Boeing Test
a)
ASTM D 2265
ASTM D 1264
ASTM D 217
"
"
IP 220
ASTM B 117
Method
Value
160
·cm
0.006 S/cm
Value
0.29 W/(mK)
Value
2.0%
5.0%
Slight oil separation
>300°C [>572 °F]
0.9%
315
315
319
#0, no corrosion
Passed >550 hours
Value
Black
Odorless
1.01 g/mL
Thixotropic paste
Yes
Yes
Yes
4%
ASTM D 1475
Calculated
a) Thermal cycling of ten cycles from -40 to 121 °C.
b) Bearing dried at 77 °C [171 °F].
c) Aluminum 2024 coupons with 254
m
[10 mil] film thickness and >550 hours exposure to 5% salt
spray
Synthetic Oil Properties
Oil Viscosity Index
c)
Fire Point
d)
Flash Point
e)
Method
ASTM D 2270
ASTM D 92
ASTM D 92
Value
>110 °C
321 °C
>290 °C
[>230 °F]
[610 °F]
[>554 °F]
Note:
Values based on synthetic oil component only
c) High oil viscosity index of more than a 100 indicate small oil viscosity change with temperature.
d) Temperature at which oil will continue to burn for at least 5 seconds after ignition with an open flame.
e) Cleveland open cup method.
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Premium Carbon Conductive Grease
8481 Technical Data Sheet
8481
Storage
Store between -40 and 40 °C [40 and 104 °F] in dry area.
Health, Safety, and Environmental Awareness
Please see the 8481
Safety Data Sheet
(SDS) for greater details on transportation, storage, handling
and other security guidelines.
Environmental Impact:
The volatile organic content is 4% by WHMIS and European standards. Not
regulated as a dangerous good for transport.
Health and Safety:
Wear safety glasses and disposable gloves to avoid exposures.
HMIS® RATING
HEALTH:
FLAMMABILITY:
PHYSICAL HAZARD:
PERSONAL PROTECTION:
Approximate HMIS and NFPA Risk Ratings Legend:
0 (Low or none); 1 (Slight); 2 (Moderate); 3 (Serious); 4 (Severe)
NFPA® 704 CODES
1
1
0
1
1
0
Application Instructions
The conductive grease performance depends on mainly on surface preparation. Improperly prepared
contact surfaces can degrade the paste’s stability, conductivity, and lubrication characteristics. While the
thickness and coverage are also important, the application method itself can easily be adjusted according
to performance and application needs.
Prerequisites
Wear gloves and protective clothing (see 8481 SDS). This product is messy.
Clean and dry the surface of the substrate to remove other oils and greases, as well as dust, water,
solvents, or any other contaminants.
Recommendation:
Use MG 824 Isopropyl Alcohol
Equipment
Lint free cloth (for cleaning contact and for wiping excess residue)
Spatula or stick application tools (sized appropriately for your application)
Isopropyl alcohol or other residue-free organic solvents
N
OTE
:
Avoid oil-based cleaners (like WD-40) that are designed to leave a film on the metal surface.
Contaminant oil or grease films may act like barriers reducing the electrical contact between the
conductive paste and the metallic substrate.
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8481 Technical Data Sheet
8481
To apply the grease
1. Wipe the contact with a lint-free cloth.
2. Clean the contacts with isopropyl alcohol or other non-oil based cleaner.
3. Once dry, apply the paste with the application tool to the contact, ensuring adequate coverage and
desired thickness.
A
TTENTION
!
DO NOT apply or smooth grease with bare finger. Carbon black grease is hard to clean and may transfer
to other surfaces by touch. Further, you may introduce contaminants that degrade the overall
performance of the grease.
Packaging and Supporting Products
Cat. No.
8481-1 (8481-85ML)
8481-2 (8481-1P)
8481-3 (8481-1G)
Packaging
Tube
Jar
Pail
Net Volume
85 mL
2.87 fl oz
453 mL
15.3 fl oz
3.78 L
1.0 gal
Net Weight
85.4 g
465 g
3.8 kg
3.07 oz
1.03 lb
8.55 lb
Contact MG Chemicals if custom packaging or sizes are required
Supporting Products
Isopropyl Alcohol:
Cat. No.824
Technical Support
Contact us regarding any questions, improvement suggestions, or problems with this product. Application
notes, instructions, and FAQs are located at
www.mgchemicals.com.
Email:
support@mgchemicals.com
Phone: +(1) 800-340-0772 (Canada, Mexico & USA)
+(1) 905-331-1396 (International)
Fax: +(1) 905-331-2862 or +(1) 800-340-0773
Mailing address:
Manufacturing & Support
1210 Corporate Drive
Burlington, Ontario, Canada
L7L 5R6
Head Office
9347–193rd Street
Surrey, British Columbia, Canada
V4N 4E7
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8481 Technical Data Sheet
8481
Warranty
M.G. Chemicals Ltd.
warranties this product for 12 months from the date of purchase by the end user.
M.G. Chemicals Ltd.
makes no claims as to shelf life of this product for the warranty. The liability of
M.G. Chemicals Ltd.
whether based on its warranty, contracts, or otherwise shall in no case include
incidental or consequential damage.
Disclaimer
This information is believed to be accurate. It is intended for professional end users having the skills to
evaluate and use the data properly.
M.G. Chemicals Ltd.
does not guarantee the accuracy of the data and
assumes no liability in connection with damages incurred while using it.
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