screen printing > Screen Making

Water spots.

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Chadwick:
I don't use ( have ) soft water at my disposal during reclaim.
The water around here changes with the seasons and we don't process it in-house at all.
At certain times of the year, we get..'water spots' in our screens, no matter how careful one is.
It's calcium or some such sh*t that doesn't evaporate, even under temp or forced air.
Exposing spot color stuff, it doesn't matter, but it causes issues with tones, and no one wants extra issues to deal with.
Would water 'conditioning' help this?
What do you use?

Artelf2xs:
Wick,

 A lot of the places I have worked for have used the air compressor with a spray nozzle to blow the water out of the screens an off the frames.

Mainly used to speed up the dring process... But it might help you with calcium as well.

Northland:
We've got really hard water and use a whole house style filter cartridge, with a 5 micron filter.
Most of our neighbors have softners.. we don't bother.
I haven't noticed any screen problems.

You could go the softner route for under $500

JBLUE:
I have really hard water in my shop too. I dry my screens vertically instead of flat and i dont ever have an issue. If I dry them flat then I will get some spots.

jsheridan:

--- Quote from: Artelf2xs on May 29, 2011, 09:18:06 AM ---Wick,

 A lot of the places I have worked for have used the air compressor with a spray nozzle to blow the water out of the screens an off the frames.

Mainly used to speed up the dring process... But it might help you with calcium as well.

--- End quote ---

Unless your compressor setup reflects that of scuba tank refilling.. you're blowing more contaminants onto your clean screen from that nasty oily compressed air than you care to think of.

As for the hard water, you could use some filters to help trap some minerals but other than that, not much you can do w/out a full conditioning system and who wants to spend that on reclaim screen water.

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