So what causes this kind of airbrush result...?

Post by **Timmy C** » Fri Jul 29, 2005 7:58 pm

[img]http://warshipmodels.com/~users/TimmyC/DSCF2985.JPG[/img]
Those spots on the red hull...how did that happen? I was using a Badger 150 model. Thanks guys!

ddp · Post by **ddp** » Fri Jul 29, 2005 8:04 pm

i would guess that either the air supply wasn't constant or not mixed properly when the paint was thinned.

coberg1 · Post by **coberg1** » Fri Jul 29, 2005 8:05 pm

possibly water condensation in the air supply?

Post by **Timmy C** » Fri Jul 29, 2005 8:06 pm

It's in the garage (I use a compressor) and it's dry summertime, so I don't think water is the culprit.

ddp · Post by **ddp** » Fri Jul 29, 2005 8:09 pm

when was the last time you drained the water from the compressor & what was the humidity like outside when using the compressor??

Post by **Timmy C** » Fri Jul 29, 2005 8:13 pm

I have no idea as to where to drain water in my compressor from...

Relative humidity is 39%.

coberg1 · Post by **coberg1** » Fri Jul 29, 2005 8:15 pm

Timmy C wrote:It's in the garage (I use a compressor) and it's dry summertime, so I don't think water is the culprit.

does the compressor have a condensation trap? your part of the country is well noted for high humidity. the compressors we use for nailguns and track fasteners have to have the water bled from the tank everyday. there should be a petcock valve at the bottom of the reservoire tank. open it up when the tank is at pressure and drain the water out.

ddp · Post by **ddp** » Fri Jul 29, 2005 8:18 pm

if it is the portable type & not the stationary big compressor than the drain valve should be on the bottom of the take as mine is.

Post by **Timmy C** » Fri Jul 29, 2005 8:18 pm

No traps. My compressor is the Tamiya one, meant for it's Spray Work airbrushes. I changed the coupling to fit the Badger. And there are no Tamiya airbrush supplies here.

coberg1 · Post by **coberg1** » Fri Jul 29, 2005 8:20 pm

check the user manual. if it has a reservoir tank and does not simply run off the pressure from the piston then there should be a bleeder valve probably right on the bottom of the tank.

Francisco P. de Nanclares · Sat Jul 30, 2005 5:58 am

Could be a not perfectly clean nozzle providing an uneven flow of paint?.

Devin · Post by **Devin** » Sat Jul 30, 2005 7:04 am

It sure looks like water in the air to me.

-Devin

Post by **Timmy C** » Sat Jul 30, 2005 12:22 pm

The thing about this nozzle of mine is that it's not a circular rim, where you can just stick your finger on it to back flush. Oh no, it has these fancy little segmented triangles, so it's impossible to plug it with your fingers.

Devin · Post by **Devin** » Sat Jul 30, 2005 11:41 pm

I have a head like that on my Badger 150 (or is it 350?). The segments are to help prevent paint build-up and the resulting spatters when said build-up finally lets go. It's worked well for me in preventing that.

To plug it to back flush, just use a rag and clamp it with your fist over the front of the airbrush. Works every time for me.

-Devin

Post by **Timmy C** » Sat Jul 30, 2005 11:43 pm

Hmm that's a good idea, Devin. Will try that next time.