MG Chemicals 847 – Carbon Conductive Assembly Paste

847 is a carbon-filled electrically conductive paste. It improves electrical connections between non-moving parts in the same way a thermal paste improves thermal connections. It will not separate, bleed or migrate. It reduces contact resistance, repels moisture, inhibits corrosion, and prevents static buildup.

It is thixotropic and can be used as a gap filler to ensure grounded connections or revitalize corroded sockets. Use 847 when you want a non-bleeding paste that provides great electrical contact and environmental protection. It is excellent for use on ground connections, battery terminals, bus bars, single pole jacks, slide connectors, HVAC connections, speaker posts, and fluorescent light pins.

Product Type: Conductive Grease

Features: Anti-Static, Arc Resistant, Corrosion Resistant, Excellent Humidity Resistance, Low Migration, Moisture Resistant, Prevents Bleeding of Additives, Thixotropic, Water Resistant

Technical Data Sheet

Knowde Enhanced TDS

Identification & Functionality

Product Type

Features & Benefits

Labeling Claims
847 Carbon Conductive Assembly Paste

A smooth stiff paste designed to fill gaps and improve connections between non-moving parts without bleeding, separating, or migrating.

  • Bleed resistant
  • Resists separation
  • Silicone Free
Key Attributes
  • Ensures continuous electrical contact between pitted, scratched, loose, or vibrating connectors
  • Prevents arcing, pitting, hotspots, and
  • Prevents corrosion
  • Lubricates
  • Repels water and humidity
  • Safe on plastics
  • Thin bond line capabilities
  • Resistivity of 23 Ω·cm
  • Improves electrical connections between irregular, pitted or corroded surfaces
  • Ensures electrical contact between loose or vibrating parts
  • Prevents arching, pitting, hotspots and welds
  • Inhibits corrosion
  • Fills gaps
  • Can be used on vertical surfaces
  • Silicone-free

Applications & Uses

Application Instructions

To apply the grease:

  1. Wear protective gloves.
  2. Clean and dry the surface being lubricated with a lint-free cloth or brush and a zero-residue cleaning solvent, such as MG 824 Isopropyl Alcohol.
  3. Apply a thin, even layer of grease using a spatula or other appropriate applicator.

Attention!
Carbon grease is messy and transfers easily. Be careful not to spread it beyond the intended area. 

Application
  • Audio jacks
  • Automotive connectors
  • Battery terminals
  • Bus bars
  • Light sockets
  • Headlights
  • HVAC connections
  • Ground connections
  • Rotating connections
  • Power cords and jacks
  • Slip Rings
  • Plugs and sockets
  • Slide connectors
  • Sound systems

Properties

Physical Properties
ValueUnitsTest Method / Conditions
Bleed ResistantYes
Corrosion ResistantYes
LubricantYes
Volatile Organic Compound (VOC)0%
Run ResistantYes
OdorOdorless
ViscosityThixotropic paste
Density (at 25 °C, 77 °F)1.07g/mLASTM D 1475
Typical Properties
ValueUnitsTest Method / Conditions
Maximum Intermittent Temperature200 (392)°C(°F)
Electrical Properties
ValueUnitsTest Method / Conditions
Surface Conductivity (Σs)0.0037S/sqASTM D257, ASTM D4496
Volume Conductivity (Σv)0.04S/cmMil-Std-883J Method 5011.6
Volume Resistivity (ΡV)23Ω·cmMil-Std-883J Method 5011.6
Surface Resistivity (ΡS)271Ω/sqASTM D257, ASTM D4496
Grease Properties
ValueUnitsTest Method / Conditions
Dropping Pointmin. 304 (min. 579)°C(°F)ASTM D 2265
Water Washout (at 38 °C, 100 °F)0.2%ASTM D 1264
Evaporation Loss (22 h at 165 °C, 329 °F)0.3ASTM D 2595
Oil Separation (30 h at 165 °C, 329 °F)1.8%ASTM D 6184
Worked Penetration (60 Strokes, ½ Scale)174ASTM D 1403
Emcor Rust Test, Distilled Water3 ⁽ᵃ⁾IP 220
Synthetic Oil Properties
ValueUnitsTest Method / Conditions
Pour Pointmin. -34 (min. -29)°C(°F)
Oil Viscosity Index ⁽ᵃ⁾min. 110 (min. 230)°C(°F)ASTM D 2270
Flash Point ⁽ᶜ⁾min. 290 (min. 554)°C(°F)ASTM D 92
Fire Point (ᵇ⁾321 (610)°C(°F)ASTM D 92
Temperature Properties
ValueUnitsTest Method / Conditions
Storage Temperature Limits ⁽ᵃ⁾-40 to 40 (-40 to 104)°C(°F)
Constant Service Temperature-68 to 165 (-90 to 329)°C(°F)
Temperature Properties Note
a) Cold storage avoids material separation and settling. If storing at room temperature, mix thoroughly to disperse filler before use.
Carbon Conductive Greases Comparison Chart

 

8481

846

847

PROPERTIES

Conductive filler

Carbon, graphite

Carbon

Carbon

Base material

Synthetic oil

Silicone oil

Synthetic oil

Constant service temperature

-68 to 165 °C [-90 to 329 °F]

-50 to 200 °C [-58 to 392 °F]

-68 to 165 °C [-90 to 329 °F]

Electrical Properties

Volume resistivity (rv)

160 W·cm

114 W·cm

23 W·cm

Volume conductivity (sv)

0.006 S/cm

0.009 S/cm

0.04 S/cm

Thermal Properties

Thermal conductivity at 25 °C [77 °F]

0.29 W/(m·K)

N/E

N/E

Grease Properties

Evaporation loss, 22 h at 165 °C [329 °F]

2.0

2.6

0.3

Oil separation, 30 h at 165 °C [329 °F]

5.0

0.4

1.8

Dropping point

>300°C [>572 °F]

>304 °C [>579 °F]

>304 °C [>579 °F]

Water washout at 38 °C [100 °F]

0.9

1.3

0.2

Emcor rust test, distilled water

0, no corrosion

1

3

Worked penetration, 60 strokes, ½ scale

315

269

174

Physical Properties

Color

Black

Black

Black

Odor

Odorless

Odorless

Odorless

Density at 25 °C [77 °F]

1.01 g/mL

1.05 g/mL

1.07 g/mL

Viscosity

128 Pa·s

386 Pa·s

N/E

Lubricant

Yes

Yes

Yes

Bleed resistant

Yes

No

Yes

Corrosion resistant

Yes

Yes

Yes

VOC (Volatile Organic Compound)

4%

0

0

Synthetic Oil Properties

Oil viscosity index

>110 °C [>230 °F]

N/A

>110 °C [>230 °F]

Fire point

321 °C [610 °F]

N/A

321 °C [610 °F]

Flash point

>290 °C [>554 °F]

N/A

>290 °C [>554 °F]

Physical and Synthetic Oil Properties Note
  • Values based on synthetic oil component only.
  • a) High oil viscosity index of more than 100 indicates a small oil viscosity change with temperature.
  • b) Temperature at which oil will continue to burn for at least 5 s after ignition with an open flame.
  • c) Cleveland open cup method.
Emcor Rust Test, Distilled Water Note
a) Corroded areas covering >1% but <5% of the running track surface.

Regulatory & Compliance

Safety & Health

Health, Safety, and Environmental Awareness
Please see the 847 Safety Data Sheet (SDS) for further details on transportation, storage, handling, safety guidelines, and regulatory compliance.

Packaging & Availability

Packaging Type
Packaging and Supporting Products
Cat. No. Packaging Net Volume Net Weight Packaged Weight
847-25ML Jar 25 mL [0.84 fl oz] 26.8 g [0.94 oz] 0.04 kg [0.09 lb]
847-1P Jar 466 mL [15.7 fl oz] 500 g [1.10 lb] 0.56 kg [1.22 lb]
847-1G Pail 3.78 L [1.00 gal] 4.05 kg [8.93 lb] 4.18 kg [9.21 lb]

Storage & Handling

Shelf Life
5 Years
Storage
Store between -40 and 40 °C [40 and 104 °F] in dry area.