--- In
Homebrew_PCBs@yahoogroups.com, "Stefan Trethan"
<stefan_trethan@...> wrote:
>
> Easy - whatever you use store and use it inside a large deep plastic
> tray of sorts. You might use something like a cat litter box (lion
> size would be preferred ;-)),.
>
> You might also find such a tray at a large butcher, they are used to
> move meat and other disgusting stuff around. Your question has
> promptet me to google for the brand name on my tray and it is from
> a large supplier of spices mainly to butchers. They might be
> unwilling to give the trays up though.
>
> I keep inside this tray my etching tank, and also all the bottles of
> refill chemicals... The tray has a fixed place on a sturdy table,
> but it has handles and careful moving around is possible.
>
> For bottles i have PE chemicals bottles from my chemicals store.
[edit]
> HCL will go "through" any plastic bottle after a few years - you'll
> find a salt of sorts on the outside and metallic things closeby
> corrode. This is the same or even stronger with PET drinks bottles
> (the thickwalled variety you are supposed to return). Glass bottles
> seem to be better, but as you say could break. Anyway, HCL is always
> sold in this style of PE bottle even pre-bottled from the
> manufacturer so i suppose it is OK that a small
> amount seems to get through the walls after a long time.
[edit]
> Anyway, short story, ideally buy the proper bottles you will usually
> get with the products, and always store them inside a larger
> container to catch spills. If you only want to store them a bucket
> would be sufficient i guess, but a tray is neat to work over.
Stephan,
A post full of valuable information and great ideas, as usual. Per
your ideas, I'm going to store my pre-mixed etchant container in one
of those 5-gallon buckets with a lid along with the plastic food
storage containers I'll be using as etching tanks. During etching,
those tanks will be kept inside a large plastic tray (one with handles
if I can find one). After etching, the etchant will be funneled
(using a plastic funnel) back into the storage bottle which will be
sitting in that large plastic tray during the transfer. During the
entire process, I'll be wearing eye protection and nitrile gloves.
This all makes it sound like a far more dangerous process that it
really is, but I'm not one to knowingly take unnecessary risks.
Thanks!
WB