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Avoiding accidental uncatalyzed finish/varnish disasters7/20
Good day gentlemen,
We don't necessarily have a "problem" with accidentally spraying uncatalyzed conversion varnish, but even once a year is painful (which is the stride we seem to be hit).
Today we sprayed 1.5 liters of uncatalyzed varnish because we are training a new guy, who followed our procedures EXACTLY, except that he seems to have accidentally pumped out a few ounces of thinner instead of catalyst, because someone placed a jug of thinner next to the catalyst, and they look the same.
Anyhow, we are going to make some tweaks to what we are doing here, but I want to toss it out there for y'all's suggestions.
Just to put this in context-- my paint booth runs a maximum of 3 people per day, and we rarely spray more than 5 gallons a day of any finish. Our CV is hand-catalyzed, and I provide very easy-to-read mixing cups, and there's ample lighting to see these things.
When someone mixes paint, they write down exactly what paint and color they mixed, the amount of paint, the amount of catalyst, and the amount of thinner. This has gone a VERY long way to eliminating this problem, but today is the proof that it's not foolproof.
Our "whoops" situations seem to be most likely when a new guy has been trained, has been doing a GOOD job, and then suddenly makes a rookie mistake.
I'm aware that humans are humans, and nobody has gotten scalded over this, but I'm hoping to come up with something that's even more bulletproof than what we are doing.
Thoughts? Success stories?
you gave yourself the answer.
Agreed, and I appreciate the help.
I'm basically fishing for additional suggestions, there is a lot of talent on this forum, and I'm sure someone has come up with something simple and effective that we haven't thought of. That's all.
my simple solution was to invest $15,000 into a Graco 2K mixing system
That's crossed my mind, and it's certainly not off the table.
I would imagine that the usual short pot life of 2K urethane isn't much of a problem since it's an auto-feed for the catalyst.
has a 2 hour pot life.