[Milsurplus] WD-40

[Robert Nickels]

On 11/26/2012 4:51 PM, KD7JYK DM09 wrote:
> WD-40 is a poor lubricant at best, so I don't use it for that and never use
> it as a contact cleaner, because it's no more a contact cleaner than motor
> oil.

WD40 is about 50% Stoddard solvent, which is a commonly-used cleaning 
and degreasing solvent, and about 25% mineral oil (which leaves the 
residue that many object to).     De-Oxit includes special ingredients 
that actually remove oxidation, and I highly recommend it too.   But in 
the olden days, TV repairmen bought "contact cleaner" by the case, which 
was typically based on some cocktail of CFCs, which nowadays is 
frowned-up, so there are various more PC concoctions that use light 
petroleum distillates, not unlike Stoddard solvent, and alcohols.   
CRC's "QD" is a general purpose contact cleaner that's available in 
several formulations,

I agree WD-40 isn't a good lubricant and prefer to use isopropyl alcohol 
and a brush instead of any aerosol, with De-Oxit for contact surfaces.

73, Bob W9RAN