13 Aug
2009
13 Aug
'09
3:53 p.m.
dwight elvey wrote:
We use DC#4 on our classic computerized (to stay on topic) pinball games, and we
find too that contact resistance appears to drop after application. We are dealing with
medium current (6 - 15A) through regular Molex pins and the connectors are noticably
cooler after a dab of DC#4 is added.
We apply it to connectors and plugs and the results are longer life and reduced
insertion/extraction resistance as well.
I have searched for documents from Dow Corning to support this as I do recall seeing
something to that effect when I first found out about this great compound about ten years
ago. No luck so far!
John :-#)#
--
John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9
Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, VideoGames)
www.flippers.com
"Old pinballers never die, they just flip out"
Date: Tue, 11 Aug 2009 13:39:06 -0400
From: ploopster at gmail.com
To:
Subject: Re: contact lubricant
e.stiebler wrote:
Hi
This is abslutely not true. I use DC#4 and it works great. I is often used
in high voltage applications and an insulator so I doubt it is conductive
in any way.
I posted about experiments I've done while at Intel, years ago.
It improved gold on gold contacts from 10-15 milliohms to less than
2 milliohms. This all while being non-conductive.
Dwight
Hi all,
so, after all this cleaning of contacts on old computers, is there
anything really good to put on the contact surface to protect it ?
Grease/Lubricants/etc. ?
The problem with contact lubricants is that they necessarily have to be
conductive, so if you get more than a tiny amount on, it's game-over.
There are lubricants out there that are designed for this purpose (such
as polyphenyl ethers), but they tend to be used for connectors larger
than the ones common in computers. Applying them to connectors the size
of which are common in computers would be very tricky. Once you get
them on there, though, they tend to be very resistant to evaporation and
migration.
Peace... Sridhar