Optimum spraying temperatures ?

[AndyFettes]

Hi all,

heres a question that Ive been pondering over and thats whats the right temp for spraying with an airbrush ?

I know very hot weather is a no no because the paint drys in mid flight before it reaches the model but I was wondering about cold weather,..as in the Midewest the winter is drawing in and temps are getting lower and lower but would that effect the paint if you sprayed in such temperatures

I have not got the luxury of a model domain and have to spray either in our 2 season conservatory or down in the garage either of which is quite chilly

So your thoughts please guys and gals

Laura you know that we have the same mini air compressor but is there a way to increase or decrease the PSI on it ?

Look forward to your replies

Andy

 

[Kreighshoer]

telling from my experience, temperature is not that important as humidity! my workbench is in the attic and you may believe me that it's freezing cold in winter and unbearably hot in summer but there's no change in quality of my clumsy tries to airbrush properly!

high humidity slows the drying of the paint considerably! that's your main enemy!

Laura you know that we have the same mini air compressor but is there a way to increase or decrease the PSI on it ?

take a closer look at the bottom of the moisture trap! there is a small regulator to adjust the pressure and to release any water accumulated!

EDIT: presuming that this is your compressor set: http://www.harborfreight.com/air-tools/oilless-compressors/1-5-hp-58-psi-compressor-and-airbrush-kit-95630.html#

the regulator is to be found on the bottom of the moisture trap, i can see it in the second of the two small pics! open a bit to lower and close it for full throttle, completely unscrew to release any water!

http://manuals.harborfreight.com/manuals/95000-95999/95630.pdf (part 32 on page 14 of the instructions!)

 

[AndyFettes]

Hey Laura indeed its the same one and you are a diamond thank you very much

 

[TomN]

Hi Andy
Sorry I can't help too much, but I am in the same situation. If I want to do any painting this winter it will be in the garage and it gets cold down there. We can't store sodas down there, unless we put them in the fridge...to keep them from freezing!

I have seen this sort of heater/fan thing at Costco. Seems to put out a lot of heat, I may pick one up next week to warm the garage up. But my garage is a small old one car, may take more power if yours is bigger.

I'll let you know how it works,
Tom

 

[AndyFettes]

Well mines a 2 car but theres only enough room for one car LOLOL

Funny isnt it that you store all the worthless household crap inside and you leave your most expensive purchase outside !!!

I will indeed let you know

I did a primer run late the other night and that was ok, (lower 40s)took a little longer to dry up throughly but as laura says its the humidity thats the killer when it comes to paint luckily it was a dry chilly night

 

[moon puppy]

Andy have you ever thought of a paintbooth with outside venting? I've seen on the web all sorts of ductwork contraptions that will vent the fumes out a window. you can have like a insert that the window closes on and just a simple dryer vent pulling those fumes out to the outside world.

 

[Tony lee]

Yeah just like this Andy:

Tony Lee

 

[AndyFettes]

Oh Tony how I wish to have a space of my own to model in just like that

Yeah Pups I was looking into that but think I will have to wait until I get my new home before mucking about with all that business as Im renting my house at the moment

 

[moon puppy]

What I'm talking about is totally portable. you know how a window air condition unit fits in a window, this is much the same. I'll see if I can find where I saw this out on the web somewhere.

 

[reconron]

What I'm talking about is totally portable. you know how a window air condition unit fits in a window, this is much the same. I'll see if I can find where I saw this out on the web somewhere.

Hey Moon Puppy that would be interresting, looking forward for your posting.

Greetings,Ron.

 

[moon puppy]

Here's a couple of links.
http://www.spacepaintings.com/board/board_topic/1406538/468906.htm
http://www.cybermodeler.com/hobby/tools/artograph/tool_artograph.shtml

Basically you just duct the exhaust out a window. You can make a insert that fits the window and mount a dryer duct exhaust vent to it, if you want to get that fancy. Think of the sliding things you see on window mounted AC units.

You got to get those fumes out of the house or the vent does nothing. I remember reading someone complaining about their spray booth not filtering the fumes. They didn't have it vented, it was just pulling the air out of the booth and into the kitchen the guy had it sitting in...defeats the purpose.

 

[moon puppy]

Yeah just like this Andy:

Tony Lee

Well yeah, that's it, someone using photobucket and I couldn't see it while at work but that's the whole idea.