Homebrew PCBs

On Fri, 23 Jul 2004 08:27:37 -0000, cruizzer77 <atlantis7@...> wrote:

> Unfortunately I think you're right. I expected a material labelled
> as acid resistant to be resistant enough for etchant. As I can't do
> without screws I have to try and get plastic screws, but chances
> that I can buy PP, PE or PVC ones are small, these are usually made
> from PA which is again only halfways resistant.
>
> Regards
> Martin

yea nylon is said to go bad in etchant..

(By the way rubber, like in bike inner tires, is resistant to CuCl, i use
it in my tank as a rubber band.)

When i asked for plastic screws some time ago someone here suggested a US 
source
mentioning you can get many types of plastic there.
Perhaps you can find it in the archive by searching for nylon screws.
(By the way back then i finally got my screws by hot-forming them out
of a plastic coathanger and cutting the thread ;-) )

Also try glue or welding where possible, no screws is definitely better.
(plastic screws are a pain, even more so the smaller sizes).

ST