Re: {Collins} noisy pots



I have used WD 40 successfully on the KWM 2 especially the emissions wafer switch and pots and switches.  Water Displacement # 40. 

C. Richard Pumphrey wn9ddv

On Feb 11, 2010, at 2:31 AM, "Dave Risik" <wa3hsc@xxxxxxxx> wrote:

Thanks Alan, I had never heard that fish oil was used, but for reference I got the following information on WD-40, its use and formulation. I'm not by any means trying to discredit your statement but please read the following and especially the last paragraph.

73's Dave 

Function

The long term active ingredient is a non-volatile, viscous oil which remains on the surface, providing lubrication and protection from moisture. This is diluted with a volatile hydrocarbon to give a low viscosity fluid which can be sprayed and thus get into crevices. The volatile hydrocarbon then evaporates, leaving the oil behind. A propellant (originally a low-molecular weight hydrocarbon, now carbon dioxide) provides gas pressure in the can to force the liquid through the spray nozzle, then itself diffuses away.

These properties make the product useful in both home and commercial fields; lubricating and loosening joints and hinges, removing dirt and residue, extricating stuck screws and bolts, and preventing rust are common usages. The product also may be useful in removing moisture.

Formulation

WD-40's formula is a trade secret. The product is not patented in order to avoid completely disclosing its ingredients. WD-40's main ingredients, according to U.S. Material Safety Data Sheet information, are:

   * 50%: Stoddard solvent (i.e., mineral spirits -- primarily hexane, somewhat similar to kerosene)
   * 25%: Liquefied petroleum gas (presumably as a propellant; carbon dioxide is now used instead to reduce WD-40's considerable flammability)
   * 15+%: Mineral oil (light lubricating oil)
   * 10-%: Inert ingredients

The German version of the mandatory EU safety sheet lists the following safety-relevant ingredients:

   * 60-80%: Heavy Naphtha (petroleum product), hydrogen treated
   * 1-5%: Carbon dioxide

It further lists flammability and effects to the human skin when repeatedly exposed to WD-40 as risks when using WD-40. Nitrile rubber gloves and safety glasses should be used. Water is unsuitable for extinguishing burning WD-40.

There is a popular, but incorrect, urban legend that the key ingredient in WD-40 is fish oil. The WD-40 web site states that it is a petroleum based product. 



---------- Original Message ----------
From: "ALAN CHANDLER" <alanchandler@xxxxxxxxxxx>
To: "Dave Risik" <wa3hsc@xxxxxxxx>,    <davepc2@xxxxxxxxxxx>
Cc: <collins@xxxxxxxxxxxxx>
Subject: Re: {Collins} noisy pots
Date: Wed, 10 Feb 2010 17:40:36 -0800

Just as a point of information, WD-40 is not a petroleum product.  The main 
ingredient is fish oil.

73, Alan - K6RFK

----- Original Message ----- 
From: "Dave Risik" <wa3hsc@xxxxxxxx>
To: <davepc2@xxxxxxxxxxx>
Cc: <collins@xxxxxxxxxxxxx>
Sent: Wednesday, February 10, 2010 4:34 PM
Subject: Re: {Collins} noisy pots


The WD-40 may work well to clean and lube the bearing surface between the 
shaft and the pot housing. BUT, I would never use it or any other 
petroleum product on the carbon surface in the pot.

DeOxit is perfect for both applications.

Dave WA3HSC

---------- Original Message ----------
From: "Dave Cook" <davepc2@xxxxxxxxxxx>
To: "'Steve Darveniza'" <stevedz@xxxxxxxxxxxxxxx>, <collins@xxxxxxxxxxxxx>
Subject: Re: {Collins} noisy pots
Date: Wed, 10 Feb 2010 16:24:54 -0800

A buddy of mine recently told me that he found that WD-40 works well on
noisy pots. I didn't believe him and Googled it up, and sure enough there
seems to be a consensus that it works. I'm still skeptical enough not to 
try
it on my precious Collins gear though. Dare I ask for opinions?

-- Dave WA0TTN

-----Original Message-----
From: collins-bounces@xxxxxxxxxxxxx [mailto:collins-
bounces@xxxxxxxxxxxxx] On Behalf Of Steve Darveniza
Sent: Wednesday, February 10, 2010 4:10 PM
To: collins@xxxxxxxxxxxxx
Subject: {Collins} noisy pots

Hi All,just a little thing that most already know I am sure.A few pots
,volume,RF gain,balance modulator etc have been a bit noisy or drifting
on various pieces from time to time.
When the carbon tracks have been cleaned there was no real improvement.
After putting a couple of drops of Deoxit D5 down between the  knob
shaft and the sleeve, all became smooth,noise free and stable.
73 All from VK4VN
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