Re: Using WD40 on the pipes
- Why would you choose isopropyl 91% over methyl hydrate? Contents here say that the missing 9% is water. Methyl hydrate here is much cheaper than isopropyl which in Canada is a medical product, grain alcohol with additives to make it non drinkable and is available in 99.9% at a still higher cost. I use the methyl hydrate for fuel in the wick burners as it is hotter, cheaper and much cleaner burning than isopropyl. It also has the advantage that when I accidentally drop the fuel tank in the water or get water in the tank it still burns OK. It is true that if the tank is not emptied after use and allowed to evaporate the next time you try to use it the wicks may be damp with water absorbed from the air and slow to evaporate from the wick tubes due to a lack of air circulation.
> > >
> Completely true in both cases -- WD-40 will destroy the O-rings in a
> nail gun (for instance) very quickly, and while it does a good job of
> keeping water off the metal, it doesn't prevent oxidation as well as
> common lubricating oils (if you're mainly after preventing rust, use
> something like Break Free instead, and follow with a wipe of a rag
> carrying gun or sewing machine oil -- but don't put any of these in a
> pop-pop engine).
> As for epoxy and acetone, isopropyl alcohol has exactly the same problem
> (the films of both solvents pull water out of the air, which is what
> actually weakens the bond), and evaporates even less quickly than
> acetone. The best substance to quickly clean and dry a surface for
> epoxy is a spay-on contact cleaner, the kind that's just hexane and
> heptane (CRC sells one, QD Contact Cleaner, and Radio Shack has an
> almost identical product) -- these leave no residue, evaporate quickly,
> and will remove almost anything that could interfere with epoxy bonding.
> They're almost as flammable, but easier on your liver than acetone,
> too. These may not be available in California, however, because they're
> just V(olatile) O(rganic) C(hemical) in a can, and they're considered a
> smog former...
> If, through hard work and perseverance, you finally get what you want,
> it's probably a sign you weren't dreaming big enough.
> Donald Qualls, aka The Silent Observer http://silent1.home.netcom.com
> Opinions expressed are my own -- take them for what they're worth
> and don't expect them to be perfect.
- John YAHOO wrote:
>Wow. Here in the US, I can usually buy a quart of 91% (the more
> I am in the UK. Over the years and more recently I've ordered 500ml of
> Isopropyl alcohol from several local independent pharmacies. None have
> ever had it in stock but they can get it for you within 24 hours. The
> last 500ml cost me £4.75 (about $7 US)
expensive stuff) for under $2.
If, through hard work and perseverance, you finally get what you want,
it's probably a sign you weren't dreaming big enough.
Donald Qualls, aka The Silent Observer http://silent1.home.netcom.com
Opinions expressed are my own -- take them for what they're worth
and don't expect them to be perfect.