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SCOTT42 08-13-2012 04:56 AM

fuel proof spray paints?
Hello all, I know its been asked many many times but its gonna get asked one more time, what brand spray paint is fuel proof? Rustolium, or krylon? I need to know soon so I can stop and buy some on my way home from work. Thanks.

da Rock 08-13-2012 06:46 AM

RE: fuel proof spray paints?
I used to paint mufflers with one of the brands you mention back in the day. Used the high temp stuff.

I tried it last year and in spite of the muffler having about a week to cure which was way longer than the mufflers back in the day got, the paint went sticky and started to streak the airplane.

I assumed they changed the formula.

I bought and tried a box full of cans, every brand I could find. Every one got 3 or more days to cure and every one of them failed. Only the first couple got tested on an engine/plane. The rest just got some fuel spray. I've read since that some of the brands I tried worked for others. Got no idea why, none worked for me.

SCOTT42 08-13-2012 07:03 AM

RE: fuel proof spray paints?
Thanks, I got a telemaster yesterday and all of the tail feathers have been painted, I could just cover them with momocoat but thinking I would like to put another coat of paint on them becouse I don't know if fuel proof paint was used to begine with. Thought about useing some of the colored dope from sig but I don't own a sray rig.

bkdavy 08-13-2012 09:53 AM

RE: fuel proof spray paints?
I was trying to paint a cowl a few years ago, and tried all the over the counter spray paints. Nothing worked. All started to peel and soften within a few days of flight. Finally I just painted it with the color I wanted. Once that paint had cured, I coated the entire thing with acetone thinned 30 minute epoxy. A little really went a long way. Applied the epoxy with a latex rubber glove and my finger. It gave the cowl a beautiful high gloss finish, the color hasn't faded, and paint hasn't softened or peeled in over three years.


Gray Beard 08-13-2012 10:19 AM

RE: fuel proof spray paints?
I once found different paints that were fuel proof and then the paints must have changed because they quit working a few years later. I can still find Ultra and black Barron paint once in a while at one hobby shop, How old it is?? Not a clue but it works. Luster is still sold in shops and at Tower, the colors may be off a bit, sometimes way off! It tends to run but it is fuel proof.
An OK HVLP spray gun can be bought at Harbor Freight plus a touch up gun for only a few bucks, even a single stage Air Brush. They have a very cool item for about 10 bucks too, it is a can, you put in your paint and just pressurize it, SHAZAM!!!!!!! Instant rattle can with the paint of your choice. You still need a small compressor at home though but HF even sells those!!:D

RCPAUL 08-13-2012 11:14 AM

RE: fuel proof spray paints?
OK The basic colors of Rustolium are fuel proof, to 15% at least - red, yellow, white, black,etc.. Not the metalics, not the clear. Krylon polyurethanes are fuelproof - I don't think the others are. Let Rustoleum dry for several days or longer. Remember, you cannot put just any paint over any other paint. Try a small spot for compatibility. You can always paint a piece of cardboard, let it dry for while, then put fuel on it an let it set.


carrellh 08-13-2012 11:45 AM

RE: fuel proof spray paints?
My brother painted a Super Sportster with Rustoleum several years ago and it seemed to be fuel proof. It was so long ago that formulas could have changed.

We painted my Corsair with LustreKote http://www3.towerhobbies.com/cgi-bin...P?&C=RHQ&V=TOP and it is fuel proof. They do not have a huge selection of colors any more. I wonder if the clear would go over other brands without causing a reaction. If yes, you might be able to use Krylon or Rustoleum for the color and LustreKote for protection.

SCOTT42 08-13-2012 02:38 PM

RE: fuel proof spray paints?
Thank you all for the input, I ended up stoping by the hobby store on the way home and bought a can of lusterkoat, who ever painted the feathers painted then white but I really dont like it on a red fuse so I went with silver instead.

YAT-28E 08-13-2012 03:40 PM

RE: fuel proof spray paints?
I have used model master paints over Monokote and then cleared with Luster coat. I had it laying aroung so I used it. Not my first choice but it works.

Gray Beard 08-13-2012 08:10 PM

RE: fuel proof spray paints?
I'm just about to buy some Klass Kote clear, the two part epoxy will go over pretty much any paint to fuel proof it. My next plane is a glow powered but I will be using water based Latex from Lowe's so the KK will work great over it. I will use a cheap HVLP spray gun though. I also want to try using gold leaf and the KK will go over that too. If your using a gas engine then you don't need to fuel proof latex paint. Looks good and it's cheap, can also be mixed and matched at any hardware store.

vasek 08-13-2012 10:56 PM

RE: fuel proof spray paints?
I had very good luck with spray-paints meant for car engines. Not very many colors available but they are 100% fuel proof.

jester_s1 08-14-2012 05:43 AM

RE: fuel proof spray paints?
Krylon polyurethanes are not necessarily fuel proof. If it's a water based poly it's definitely not. Oil based may be, but they will also yellow with time. For future reference, some auto paint stores have a 2 part urethane in a rattle can that you activate just before spraying. It will be fuel proof and won't yellow or peel over time.

acdii 08-14-2012 10:56 AM

RE: fuel proof spray paints?
I used Rustoleum automotive clear coat and it seems to be pretty good. I had painted 3 coats on a piece of ply, let it cure for a day and then put a blob of 15% Wildcat on it and let it sit for a day. It wiped off without any softening.  I painted the bare parts of my Eflite T-34 with it and haven't had any problems....yet.

jester_s1 08-14-2012 11:28 AM

RE: fuel proof spray paints?
Lots of paints will stand up to raw fuel, but then soften when they get exhaust on them. The real test is to put a painted panel in the path of your tailpipe and run the engine for about two minutes. Then let that panel sit for 24 hours with the residue on it. If you are still able to wipe the residue away and have no staining or softening of the finish, you're good to go.

dbacque 08-14-2012 03:04 PM

RE: fuel proof spray paints?
Jester, very good test methodology. Thanks for the info, I'll file that one away!


acdii 08-15-2012 10:18 AM

RE: fuel proof spray paints?
So far the Rustoleum CC is holding up. Had a couple flights on the plane I used it on and it cleaned up well.

SCOTT42 08-15-2012 11:22 AM

RE: fuel proof spray paints?
I made a stop by the locale shop and picked up some silver lustercoat, Ive got every thing masked off now and have three coats on the alirons now and two coats on the tail surfaces with one more coat to go. I really think this is going to turn out nice. I will post pics of the completed job when done, Im thinking next week she should be ready to fly.

moggyman64 08-15-2012 12:25 PM

RE: fuel proof spray paints?
Hi Scott 42,

Patience is key to a good finish, take your time and enjoy getting good results.

Hope it works out for you.


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