Re: Tru Color Paint Stripper?


mwbauers
 

I now realize that my practices are not the norm.

From the start I begin spray painting by using a test piece of scrap cardboard to see how the paint I’m using handles and what is the better distance to use to get the best results.

I also prefer to use a paint like Floquil [which I stopped using a long timer ago] and my normal paint is Scalecoat that I apply in perhaps four passes to a side.

I settled in spraying at about 15-pounds of pressure early on and see that the tutes are using 25-35 pounds for the same paints I filter for lumps, thin and spray at 16-pounds. I don’t know why the average looking slightly thinned paints I use work well at much below the now recommended pressure…… but they do.

example..


I’ve alway upped the pressure for water based paints. But by feel to get the spray result I want on a test piece without noting that I should be going directly to 35-pounds or so. I don’t think I ever go that high. I do up the pressure for water based paints. But I don’t think I go to 35 pounds with the same common airbrushes that I use at 15 pounds.

So I’m misting on the paint from a distance that works well with the slightly thinned paint under a pressure that others would tell me is just too low.

I don’t know better. I just know that I test it each time before I paint a model and that it works so well for me that I’ve not had to use nor discover what the conventional settings had become. When I started spray painting ages ago, 12-15 pounds was recommended for thinned and additive gloss standard Floquil and I have that as my base setting.

A good spray painting is a combination and dependent interaction of the pressure used, the distance sprayed from, the fluidity of the paint mix, and the chosen speed at which the airbrush is passed over the model while traveling from side to side.

I must conclude that I really can’t advise on spray painting since my well-practiced method is seemingly not practical per the common recommendations.

Best to ya,
Mike Bauers
Milwaukee, Wi

On May 29, 2015, at 8:50 AM, 'Nelson Moyer' ku0a@... [STMFC] <STMFC@...> wrote:

Mike, read the painting primer on the Tamiya web page.

http://www.tamiyausa.com/articles/feature.php?article-id=35#.VWhot5Mo4-U

Keep in mind that this primer refers to rattle cans where the user can’t alter pressure other than by heating the can. With an airbursh, we control both distance and pressure. With acetone based paint, pressure is the overriding culprit at normal painting distance, since the carrier flashes off so quickly with increased air pressure. I was painting at about 36-38 psi at a distance of 5-6 in. when I painted the reefer sides. Any closer would have blown them off the tape! The pressure setting was from the last paint session when I painted the interior of my stock cars with a siphon feed Paasche H and a #5 tip. I started painting with the gravity feed Iwata without reducing the pressure (big mistake), and I flashed the carrier. Have you actually tried painting with Tru Color?

Mr. Johnson’s primer (aside from misspelled words), is the best summary of model painting technique I’ve seen yet, and I imagine many on the list will find it interesting and informative.

Nelson Moyer

From: STMFC@... [mailto:STMFC@...] 
Sent: Friday, May 29, 2015 12:29 AM
To: STMFC@...
Subject: Re: [STMFC] Tru Color Paint Stripper?

You state two problems.

I addressed your first.

" and I ended up with flat grainy sides from "

I've been airbrush painting since the late '60's. Your finish problem is not pressure related. That will show up as a very different effect.

Mike Bauers



On May 28, 2015, at 2:05 PM, "'Nelson Moyer' ku0a@... <mailto:ku0a@...> [STMFC]" <STMFC@...<mailto:STMFC@...> > wrote:

Mike, that wasn’t the question. I already know the issues re grainy paint i.e. too much air pressure and/or too far away. What I want to know is, what do I strip Tru Color paint. You didn’t address that questions, so why the post?

Nelson Moyer

From: STMFC@... <mailto:STMFC@...> [mailto:STMFC@...] 
Sent: Thursday, May 28, 2015 12:29 PM
To: STMFC@... <mailto:STMFC@...> 
Subject: Re: [STMFC] Tru Color Paint Stripper?

The old rule is that if the paint job is grainy, as if drying before it hits the model…… you are spraying from too far away.

Best to ya,
Mike Bauers
Milwaukee, Wi

> On May 28, 2015, at 12:01 PM, 'Nelson Moyer' wrote:
> 
> 
> I painted two reefer sides with Tru Color WFE Yellow last night using a new Iwata gravity feed airbrush. Apparently, the gravity feed takes much less air pressure than my Paasche siphon feed airbrush, and I ended up with flat grainy sides from too much air pressure. The Tru Color web page doesn’t address suitable strippers for their paints, so I’d like to know what to use to strip the Sunshine resin sides without damaging them.
> 
> 
> 
> Nelson Moyer

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