Where to get Proplyne Glycol?

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oldfatgit

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My new in hull transducer calls for 71ml of Proplyne Glycol to provide the acoustic match to the hull. Previous one used Castor Oil. Does anyone know where one can get a small amount of Proplyne Glycol? Google sources seem to be in the gallons. Would be most convienient if somewhere in the Gosport Fareham area rather than by post.

Thanks in anticipation.
 
You mean propylene glycol .. it'll help to search for it with the name correct.

Also known as

1,2-dihydroxypropane,
methylethylene glycol,
methyl glycol,
propylene glycol,
propane-1,2-diol,
1,2-propylene glycol,
alpha-propylene glycol,
1,2(R,S)-propanediol,
2,3-propanediol,
2-hydroxypropanol,
DL-1,2-propanediol,
dl-propylene glycol,
Dowfrost,
isopropylene glycol,
methylethyl glycol,
monopropylene glycol,
PG 12,
Sirlene,
solar winter ban,
solargard P,
Ucar 35

For such a small quantity a laboratory chemical supplier may be the best bet.
eg http://www.mistralni.co.uk/details.php?id=8&gclid=CLrzgtnA7Z8CFZEA4wod7Q2jYQ

I'd use castor oil again!

.
 
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oldfatgit said:
My new in hull transducer calls for 71ml of Proplyne Glycol to provide the acoustic match to the hull. . . . .
Click to expand...

Have you thought of getting back onto the transdcer manufacturer and asking them? If they specify it, then thy must know where you can get just 71ml from . . . or they are just plain daft and you must tell then so! :confused:
 
Wonder if it is an Almar brand transducer? All you need is a liquid to sonically connect the face of the transducer with the inside of the hull surface. If your engine uses a closed cooling system, you just need a little of your spare anti-freeze, mixed the usual way -- 50/50 with water.
The general idea is not to use plain water that would freeze in the winter and break the cheap plastic mounting cup.

I recently installed one of these, supplied by Garmin.

L
 
something stirs in the back of my mind about KY jelly. Isn't it supposed to be a useful substance for conducting impulses, as it were , from the transducer through to the hull ?

Readily available in small quantities from good stores everywhere, as they say.
 
In reality any liquid that

will not freeze
will not evaporate
will not attack the transducer, the mounting or the hull
and does not smell

will do the trick.
 
i wonder, why PG and not ethylene glycol? this is usually only used for potable systems (say, where an engine's coolant is used to heat a hot water tank).

like the post above said, if it doesn't have to potable just use some normal ethylene glycol antifreeze.
 
Isn't,

Propylene Glycol the principal constituent of the "greener" antifreeze, less deadly to marine life than "conventional" Ethylene Glycol?

Obviously nobody uses it - else there would have been suggestions before me.

So if the stuff isn't going to leak outside normal antifreeze would do, or if you're PC you could buy a litre of the green stuff?

Oops somebody got there first....
 
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Everybody,

Thank you very much. It is an Airmar P79 made in the good old USofA where, perhaps, propylene glycol is more readily available. Given the fact that what is needed, so competently outlined by VicS, accords with the view of the majority, I'll use something more available, at least to start with.
 
USofA where, perhaps, propylene glycol is more readily available
Click to expand...
Propylene glycol based antifreezes certainly seem to be readily available over there. A search on Google.com soon finds a choice.
 
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