[Boatanchors] Heathkit SB-200 Question - Seeking advice
Robert Nickels
ranickel at comcast.net
Sat Apr 9 11:15:29 EDT 2011
When choosing chemicals and lubes it's usually helpful to understand
what's in them, and to do a little research to determine how this
compares with what you want to accomplish. There are many urban myths
floating around the 'net.
One source of such information is the Material Safety Data Sheet, which
is required even for proprietary formulations. So while it doesn't say
what other "secret sauce" might be included, it does list the following
main ingredients of WD-40:
* 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
No fish oil ;-) - but Stoddard solvent (aka "white spirit") is an
excellent low-toxicity solvent, which explains WD-40s well-known
cleaning and degreasing ability. WD-40 definitely contains oil, and one
reason it's got a reputation for leaving a dust-attracting residue is
the simple fact that most oils aren't applied by aerosol spray, thus we
tend to end up with WD-40 in places we really don't want it. It's good
for a lot of things, but not for everything.
The old Boatanchors list used to have the benefit of a chemical
engineer, Dr. Barry Ornitz, who often shared more detailed explanations
on chemical matters, but the key message I took away him was "there is
no chemical substitute for common sense and elbow grease".
73, Bob W9RAN
More information about the Boatanchors
mailing list