CK5
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Humidity range to spray color/clear?
- Thread starter Blue85
- Start date
Do you have a small window air conditioner? I have one in my shop, and had it running all night before painting, and used a good furnace filter to filter the air coming into the paint area.
humidity can be somewhat controlled in your reducer... the slower the reducer, the less chance of blushing... you can actually run retarder on really bad days...
tho it is best to keep all that to a minimum....
heat lamping the fresh paint will take care of any blushing if you have access to one...
absolutely run an inline seperator AT the gun...
i like the round plastic ones...
and as zim pointed out, a good intake furnace filter is always a good idea... the AC too, if ya have one...
urethane's are decent about humidity, not to say they wont blush.... but lacquer? that stuff blushes if ya look at it wrong...
tho it is best to keep all that to a minimum....
heat lamping the fresh paint will take care of any blushing if you have access to one...
absolutely run an inline seperator AT the gun...
i like the round plastic ones...
and as zim pointed out, a good intake furnace filter is always a good idea... the AC too, if ya have one...
urethane's are decent about humidity, not to say they wont blush.... but lacquer? that stuff blushes if ya look at it wrong...
I have a little oil/water seperator I was planning to run with one of those little bead dessicant driers, then a short 12" hose, then the gun. Will that be OK?
I have a furnace filter and fan in the window for ventilation. The window A/C sounds like a good idea, but it seems like I have to ventilate while spraying?
The forecast is for "max humidity" of 74%
I have a furnace filter and fan in the window for ventilation. The window A/C sounds like a good idea, but it seems like I have to ventilate while spraying?
The forecast is for "max humidity" of 74%
the inline filter should be ok..
you should have an intake and exhaust.. 2 windows works well.. furnace filters in both, exhaust fan in one, in front or behind the filter...
you should have an intake and exhaust.. 2 windows works well.. furnace filters in both, exhaust fan in one, in front or behind the filter...
I used a 12000 btu air conditoner in one opening with filter in front of it, and put another 24x24 filter in the ceiling to draw air down. This opening I partially blocked off to about 8X24, as it drew in the warm air from the rafter area above my ceiling.
I had a 24" box fan in an opening below my workbench as the exhaust. Once I was done painting, I opened up the ceiling intake to allow more air to clear the place out.
It only took about 10 minutes before the whole room was cleared out, then I closed the ceiling opening up. The "spary booth" was about 70* when starting the paint, and about 75* when I was done.
Good luck Blue.
I had a 24" box fan in an opening below my workbench as the exhaust. Once I was done painting, I opened up the ceiling intake to allow more air to clear the place out.
It only took about 10 minutes before the whole room was cleared out, then I closed the ceiling opening up. The "spary booth" was about 70* when starting the paint, and about 75* when I was done.
Good luck Blue.
"cool" although as cool as it has been you probably won't need it now, but I have run both the A/C and an electric heater before painting to get the humidity out, and keep the room temp about 70*.
Painting today or Monday huh?
Good luck Blue
Painting today or Monday huh?
Good luck Blue
These must work - I had half an inch of water in mine after spraying today. I assume that if you don't catch the water you get droplets coming out of the gun. I didn't see anything of the sort, so this setup must be adequate.absolutely run an inline seperator AT the gun...
i like the round plastic ones...
did you find the round plastic ones? usually orange.... i like those better, use em a few times, toss em...
this kinda weather? i don't care if ya got a $1000 seperator on the wall, you'll still develop water in the hose..
as a matter of fact, it's all i run in my house system, compressor/one of those.. painted dozens of cars like that... do what ya gotta do...
turn out ok?
this kinda weather? i don't care if ya got a $1000 seperator on the wall, you'll still develop water in the hose..
as a matter of fact, it's all i run in my house system, compressor/one of those.. painted dozens of cars like that... do what ya gotta do...
turn out ok?
So you were recommending these, not the one you pictured?
So obviously we are removing the moisture from the air supply, but doesn't the moisture in the air itself effect the the spraying and/or leveling of the paint? Or is the air+paint coming from the gun displaying the local air enough to let it do it's thing? Surely I can't paint while it's raining, right?
So obviously we are removing the moisture from the air supply, but doesn't the moisture in the air itself effect the the spraying and/or leveling of the paint? Or is the air+paint coming from the gun displaying the local air enough to let it do it's thing? Surely I can't paint while it's raining, right?
yeah, those are the ones I use....
it's both, sorta... moisture in your air supply causes it's own problems with a topcoat... bubbles, poor adhesion, etc...
moisture in the air causes blushing... thats where the heat lamps, retarder, etc come into play..
i've painted when it's raining plenty of times, just have to be aware of it.... high humidity days affect both, the amount of moisture created in your air supply, and the air itself...
it's both, sorta... moisture in your air supply causes it's own problems with a topcoat... bubbles, poor adhesion, etc...
moisture in the air causes blushing... thats where the heat lamps, retarder, etc come into play..
i've painted when it's raining plenty of times, just have to be aware of it.... high humidity days affect both, the amount of moisture created in your air supply, and the air itself...
