29-06-2025, 05:54 PM
(This post was last modified: 29-06-2025, 05:57 PM by DrStrangelove.)
I recall storing a bag of FeCl on a high shelf many years ago.
It was not a wise decision when the plastic carton disintegrated in the sun shining in through the window.
Messy stuff.
Reminded me of my late predecessor's etch tank experience: the processing room was above a lecture theatre.
One day one of the Esteemed Customers who was still awake remarked on the brown stain spreading over the ceiling above the lecturer.
6 litres of FeCl had leaked out of the etch tank due to a pinhole in the drain hose.
At least when it happened to me a) it was developer and b) by this time it had been relocated over the gents bog in a different building and c) it was during a vac.
Never did find out where that 5 litres of stuff went.
Naturally enough, because I actually enjoyed making pcbs the tank was condemned by Elf & SafeTea and one of the few minor joys disappeared.
Ho hum.
It was not a wise decision when the plastic carton disintegrated in the sun shining in through the window.
Messy stuff.
Reminded me of my late predecessor's etch tank experience: the processing room was above a lecture theatre.
One day one of the Esteemed Customers who was still awake remarked on the brown stain spreading over the ceiling above the lecturer.
6 litres of FeCl had leaked out of the etch tank due to a pinhole in the drain hose.
At least when it happened to me a) it was developer and b) by this time it had been relocated over the gents bog in a different building and c) it was during a vac.
Never did find out where that 5 litres of stuff went.
Naturally enough, because I actually enjoyed making pcbs the tank was condemned by Elf & SafeTea and one of the few minor joys disappeared.
Ho hum.
