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General control line discussion => Open Forum => Topic started by: Clint Ormosen on July 17, 2007, 08:23:13 PM

Title: Weeks of prep down the drain.
Post by: Clint Ormosen on July 17, 2007, 08:23:13 PM

I don't get a lot of time in the Summer for model building. I have spent weeks cramming in paint prep time on a little Akromaster. I like to use Rustoleum on these small sport models and usually have decent results. I grabbed a can of gloss black from my shelf and a new nozzle and test sprayed on some cardboard. All looked good. BUT, halfway through shooting the plane, the paint started spitting and comming out in irregular patterns. The result is terrible. Major orange peel and thick spots. Gross. I don't have it in me to sand it off and start over for a pukey profile. I guess it's OK from 5ft away.
Totally depressing. :'(

Title: Re: Weeks of prep down the drain.
Post by: Scott Hartford on July 17, 2007, 09:25:27 PM

Just fly it for a month and then wet sand it smooth and lay on one more thin coat! H^^

Title: Re: Weeks of prep down the drain.
Post by: Warren Leadbeatter on July 18, 2007, 05:17:18 AM

Yep thats what I would do.  It's not so bad.

Title: Re: Weeks of prep down the drain.
Post by: Jim Oliver on July 18, 2007, 07:08:24 AM

Good advice from Ty.
I usually use my heat gun to warm the can, rather than hot water.

Jim

Title: Re: Weeks of prep down the drain.
Post by: Phil Coopy on July 18, 2007, 09:21:57 AM

Over the years I've had this happen so many times with rattle cans that if I have to use paint from one I remove it from the can and use a sprayer.

Phil

Title: Re: Weeks of prep down the drain.
Post by: Ron Merrill on July 18, 2007, 01:21:59 PM

TY, thanks for the tip on the hot water. On several paint jobs i encountered spitting, and didn't know why. Thanks Ron. y1

Title: Re: Weeks of prep down the drain.
Post by: Keith Spriggs on July 18, 2007, 01:49:14 PM

Good tip on warming the can. I did not know that, but it makes sense. One thing that I have learned is that when I have paint left over in the can I turn it upside down as per instructions and blow the paint out. Then I pull off the nozzle and put a drop of lacquer or acetone on top of the pipe that is inside. I drop the nozzle in a jar of lacquer thinner or aceton and swish it around. Pick it out with a pair of needle nose and blow it out with a few pounds of air. Also point the top of the can away and blow out the drop that you put in it. Put the nozzle back on just enough to hold it but not spray any paint. Some cans I have probably used out of 10 or 15 times and they still work just like a fresh can.

Title: Re: Weeks of prep down the drain.
Post by: taildragger-j3 on July 18, 2007, 01:55:43 PM

Boy Keith, those are great suggestions. I've cleaned out the plastic spray nozzle with acetone before, but I didn't think about putting a drop in the part that comes out of the can. I'll have to try that!!!

Thanks!!

Title: Re: Weeks of prep down the drain.
Post by: Leo Mehl on July 18, 2007, 08:43:32 PM

Warming the can on clear Poly-U is a must and lays down more even and cures faster

Title: Re: Weeks of prep down the drain.
Post by: Clint Ormosen on July 19, 2007, 12:53:56 AM

I know about warming the paint can. I did this on a 95 degree day and set the can in the sun for about a half hour. I have a bag of new nozzles and had one on the can. I guess it's just one of things that happens and then we deal with it.
Oh, and for Ty, Shake and Paint is my regular routine.