lcdpublishing wrote:
>
>
> Hi guys,
>
> Several of you folks have made spray etching tanks. What are you
> using for pumps?
>
> I plan to continue using Ferric Chloride and would appreciate any
> pointers, suggestions, or other information that might be helpful in
> the making of a spray tank.
>
>
The Surflow pumps actually use stainless self tappers, as I found out
the hard way. I did not try to source titanium replacement screws.
Although it would of been much easier to just re-thread the plastic body
with a M5 tap and replace the three self tappers with button head
titanium bolts (Ti self tappers are rare as hens teeth). Instead I
plastic coated steel screws and put nuts on the other side. There was a
lot of work to make room for the nuts.
Alternatively, I believe the competing Flojet brand pumps have no metal
parts in contact with fluid.
I posted a link the other day describing a little on the spray etcher.
Hope it answers you question. The URL again:
http://members.optusnet.com.au/~eseychell/PCB/SprayEtcher/index.htmlAdam