Acetal seems like great stuff but it is really sensitive to any kind of acid. I worked many years in industries using small acetal parts and have the scars to show for it. Lubrication or fluids in contact with acetal must be completely neutral and any contact with acid core soldering flux will result in the decomposition described.
Jim Richmond
--- In Indoor_Construction_at_yahoogroups.com, "art" <upwind120@...> wrote:
>
> Ahh ! We have a Chemist !
>
> Here's a question. A couple of years ago I stored a short length of chain and a few sprockets in an empty medicine vial, which I hadn't washed out. I came back to use the parts after six months or so and they had decomposed into a powder. The medicine was Lisinopril, a common hypertension scrip.
>
> Now, what am I putting into my body that would do that to a material that I had thought was atom-bomb proof/hydrogen bomb resistant?
>
> I had put the question to my daughter, who is in the health care trade, but the little serpent's tooth claims she was too busy to do the research.
>
> Art.
>
Received on Fri Nov 11 2011 - 13:02:24 CET
This archive was generated by Yannick on Sat Dec 14 2019 - 19:13:46 CET