Any amatuer chemists out there?

Posted By: AAR-B4

Any amatuer chemists out there? - 04/10/11 07:46 PM

Or professional. I have given up trying to keep the glycerin inside my Autometer fuel pressure gauge.
I have disassembled it enough to drain the liquid but I would like to remove the film with a solvent.
Hot soapy water does not work, has anybody been successful at this?

Posted By: Pacnorthcuda

Re: Any amatuer chemists out there? - 04/10/11 08:02 PM

glycerin is soluble in water and alcohol so if water ain't cutting it go to Alcohol. Methyl/Denatured even Rubbing (isopropyl) will work

Posted By: Shoozy

Re: Any amatuer chemists out there? - 04/10/11 11:07 PM

Quote:

glycerin is soluble in water and alcohol so if water ain't cutting it go to Alcohol. Methyl/Denatured even Rubbing (isopropyl) will work

Agree on the alcohol. It is also soluble in ethylene glycol. Try a bit of pure EG based antifreeze and then rinse with water. Either that or an alcohol should take good care of the issue.

Posted By: AAR-B4

Re: Any amatuer chemists out there? - 04/11/11 01:25 AM

Thanks for the suggestions. I'll let you know how it works.

Posted By: AAR-B4

Re: Any amatuer chemists out there? - 04/11/11 09:34 PM

Here's my report:
Soapy hot water and household rubbing alcohol just turned the glycerin to small globs of jelly.
So I tried lab type isopropyl and it still did not dissolve the glycerin but it sure did remove the lettering from the gauge face.
Lesson learned.

Posted By: HEMIFRED

Re: Any amatuer chemists out there? - 04/11/11 10:52 PM

Quote:

Any amatuer chemists out there

my last attempt nearly got me busted