Motorcycle Forum

Go Back   Wrist Twisters > Wrist Twisters > Mechanical and Technical


Forum Twitter Forum Twitter Forum Twitter Website Twitter
Reply
 
LinkBack Thread Tools Display Modes
Old 02-04-2010, 11:52 AM   #1
red dirt girl
 
Kristen's Avatar
 
Join Date: Nov 2006
Location: Cakalaky
Posts: 2,512

Awards Showcase
Outstanding Restoration BOTM Donation Donation 
Total Awards: 4

Lubrication/Electrical Question

I'm looking for a carbon or graphite based grease that conducts electricity. Anyone?

(And yes, this is for a motorcycle...)
 
Remove Advertisements




Old 02-04-2010, 12:16 PM   #2
Tirone shoelaces
 
TexasTraffic's Avatar
 
Join Date: Mar 2009
Location: Central Texas
Posts: 399
Not easy!
You'd need a very high percentage of graphite. Any grease in the mix would be a pretty good insulator.

What is your application?
Is it possible to use straight dry graphite?
How about using a carbon brush from an electric motor?

At best, the dry graphite solution would not be a great conductor.... though still much better than a graphite/grease mix.
 
Old 02-04-2010, 12:19 PM   #3
Milites Gregarius
 
Join Date: Apr 2009
Location: North Carolina
Posts: 190
Like this?

Graphite Grease/Conductive Paste - G-Scale (lgb51010) LGB Model Train Track / Accessory Brass - G Scale
 
Old 02-04-2010, 01:30 PM   #4
red dirt girl
 
Kristen's Avatar
 
Join Date: Nov 2006
Location: Cakalaky
Posts: 2,512

Awards Showcase
Outstanding Restoration BOTM Donation Donation 
Total Awards: 4

Quote:
Originally Posted by TexasTraffic View Post
Not easy!
You'd need a very high percentage of graphite. Any grease in the mix would be a pretty good insulator.

What is your application?
Is it possible to use straight dry graphite?
How about using a carbon brush from an electric motor?

At best, the dry graphite solution would not be a great conductor.... though still much better than a graphite/grease mix.
Thanks. My turn signal contacts on my '74 DT250 are so pitted from corrosion that they work intermittently.
Everything else has checked out as working correctly, a conductive grease was suggested.

Thanks. I'll check into that.
 
Old 02-04-2010, 02:06 PM   #5
Adventurer
 
The Shadow's Avatar
 
Join Date: Jan 2009
Location: Boulder, Colorado
Posts: 1,347

Awards Showcase
Veteran Extraordinary Ride Wrist Twisters Event Attendance 
Total Awards: 3

Kristen, you should be able to get Dielectric grease from radioshack or home depot, etc. a little dab should do it.
 
Old 02-04-2010, 02:20 PM   #6
When in doubt.....GAS IT!
 
hasbeenracer's Avatar
 
Join Date: Sep 2006
Location: SO.CAL
Posts: 2,360

Awards Showcase
Donation 
Total Awards: 1

Quote:
Originally Posted by The Shadow View Post
Kristen, you should be able to get Dielectric grease from radioshack or home depot, etc. a little dab should do it.
Most auto parts stores have it to. Got some at PEP Boys the other day. If you need some I can send it to you.
 
Old 02-04-2010, 02:36 PM   #7
Immune
 
mantelhonda's Avatar
 
Join Date: Oct 2008
Location: southern california
Posts: 311
Quote:
Originally Posted by Kristen View Post
Thanks. My turn signal contacts on my '74 DT250 are so pitted from corrosion that they work intermittently.
Everything else has checked out as working correctly, a conductive grease was suggested.



Thanks. I'll check into that.
I use "Di electric" grease , on the connectors,stops corrosion and it is available at any motorcycle or auto parts store.
 
Old 02-04-2010, 07:00 PM   #8
Tirone shoelaces
 
TexasTraffic's Avatar
 
Join Date: Mar 2009
Location: Central Texas
Posts: 399
Quote:
Originally Posted by Kristen View Post
...
... a conductive grease was suggested.
This is likely your best (only?) option short of replacement.

A tiny bit in the right spot goes a LONG way - gooping it in there will not help, and will likely hurt.

Good luck!
 
Old 02-04-2010, 09:22 PM   #9
Old, Bold rider
 
robtharalson's Avatar
 
Join Date: Jan 2007
Location: Santa Maria, CA Otherwise known as heaven on earth.
Posts: 1,487

Awards Showcase
Donation Veteran Community Leadership 
Total Awards: 3

Most electrically conductive greases are either carbon (graphite) or silver filled. Both have their applications and in this case they may work, but may not provide consistent operation. Additionally, depending on the chemical properties of the grease a slight overapplication may cause shorting.

I have repaired corroded bulb contacts with silver solder after thoroughly cleaning and fluxing the base metal, and if you have access to a suitably hot soldering iron it can be done with minimal disassembly.

Rob
 
Old 02-04-2010, 10:55 PM   #10
Tesserarius
 
nd4spdbh's Avatar
 
Join Date: Sep 2009
Location: So Cal
Posts: 798
ya i would try n resurface the contacts with some solder.
 
Old 02-05-2010, 04:40 AM   #11
red dirt girl
 
Kristen's Avatar
 
Join Date: Nov 2006
Location: Cakalaky
Posts: 2,512

Awards Showcase
Outstanding Restoration BOTM Donation Donation 
Total Awards: 4

Thank you!

My confusion is that I read this-
"Dielectric grease is a nonconductive grease. Because it is nonconductive it does not enhance the flow electrical current. Electrical conductors should not be coated with dielectric grease prior to being mated."
 
Old 02-05-2010, 06:12 AM   #12
Chuck Norris has lost in battle with this Member
 
Join Date: Mar 2006
Location: 
Posts: 10,057

Awards Showcase
Extraordinary Ride Donation Wrist Twisters Event Attendance Wrist Twisters Event Attendance 
Total Awards: 6

Is replacing the contacts not an option? simple cut, splice and rewire to another OEM blade, or replace that section of wiring altogether?
 
Old 02-05-2010, 07:05 AM   #13
CG
 
catonsvilleguy's Avatar
 
Join Date: Jul 2009
Location: Catonsville, MD
Posts: 532
There is a grease that is made to prevent oxidation on multstrand aluminum power cable. It's used like where your power comes into your house and the cable is stripped and inserted into the lugs in your power panel. It keeps the aluminum from becoming oxidized. I think you can get it at any Home Depot or electrical supply store.
 
Old 02-05-2010, 07:08 AM   #14
Harry says "Fuck PC!"
 
Bigdaa's Avatar
 
Join Date: Jan 2006
Location: Coming to you LIVE from Belahalababa
Posts: 10,571
Quote:
Originally Posted by Kristen View Post
I'm looking for a carbon or graphite based grease that conducts electricity. Anyone?

(And yes, this is for a motorcycle...)
Seems to me graphite(carbon) is an excellent conductor as well as a lubricant in itself. Remember that brushes in motors are made of carbon, much like pencils. I think Texas T has a pretty good point, though. Brushes are like 100% graphite.
 
Old 02-05-2010, 09:20 AM   #15
So, you're a human...
 
adamjayp's Avatar
 
Join Date: May 2008
Location: Nor Cal
Posts: 459

Awards Showcase
Veteran 
Total Awards: 1

Carbon is a conductor, but it is a highly resistive one. Almost all common resistors are made of carbon. The more you have, the more resistance you have. When I was in high school, the Electronics teacher had us all make our own resistors using a piece of paper and a #2 pencil (which are not made of lead BTW, we just say that). Kind of a neat visual experiment. It takes quite a bit of pencil, but you can try it yourself. Just put down a thick 1"x3" rectangle of pencil on the paper and grab your multi-meter and measure away.

This doesn't help you much, but I'd go with Rob's idea of "tinning" the contacts with silver solder.
 
Old 02-05-2010, 09:35 AM   #16
Harry says "Fuck PC!"
 
Bigdaa's Avatar
 
Join Date: Jan 2006
Location: Coming to you LIVE from Belahalababa
Posts: 10,571
Quote:
Originally Posted by Kristen View Post
Thank you!

My confusion is that I read this-
"Dielectric grease is a nonconductive grease. Because it is nonconductive it does not enhance the flow electrical current. Electrical conductors should not be coated with dielectric grease prior to being mated."
Dlelectrics are used in capacitors to enable them to store charge more effectively because of their insulative (non conductive) nature.


There are actually epoxies formulated to conduct electricity. The most common I can think of used in industry uses tiny silver balls in the mix to conduct the electricity. It's not cheap and it works wonders. Many micro electronics use this system.

There are even conductive tapes that use copper composition plus copper balls in the adhesive.

Last edited by Bigdaa; 02-05-2010 at 09:38 AM.
 
Old 02-05-2010, 09:45 AM   #17
red dirt girl
 
Kristen's Avatar
 
Join Date: Nov 2006
Location: Cakalaky
Posts: 2,512

Awards Showcase
Outstanding Restoration BOTM Donation Donation 
Total Awards: 4

Thanks guys.

The new battery that I ordered just showed up and I do have some dielectric grease so I'll try it before moving on.
 
Old 02-05-2010, 10:43 AM   #18
Tesserarius
 
nd4spdbh's Avatar
 
Join Date: Sep 2009
Location: So Cal
Posts: 798
ya id try di electric.... even though its not conductive it will make things go into place much easier.... if that dont work i wouldnt try conductive grease as it could short stuff out as you have pieces sliding over eachother spreading the grease. Instead id clean the contacts well with some liquid flux, then dab some solder onto the contacts then shave them flat.
 
Reply

  Wrist Twisters > Wrist Twisters > Mechanical and Technical


Thread Tools
Display Modes


Twitter Facebook



Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2010, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.3.0 ©2009, Crawlability, Inc.
Copyright © 2006 - 2010 Wrist Twisters. All rights reserved.