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Old 11-27-2011, 11:19 AM   #11
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Re: Paint Problem

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I didn't really mean hassle but it might be hard to completely get the contaminate out of the weave of the fabric .If you are at the painting stage it only makes sense to prime before you apply finish especially if you are having problems. You won't know if washing will work until you actually start painting the airframe again. I have used Kilz many times, it is meant to seal in grease ,crayon etc. as well as act as a primer .It will stick to fiberglass just prep it like you normally would before paint. lightly sand ,wipe with alcohol.
If you are using a conventional spray gun you can put on a nice light coat and while no product is a cure all I believe in this case it will solve your problem .

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Old 11-27-2011, 04:15 PM   #12
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Re: Paint Problem

Hassle is probably a good word and I like you point about not knowing until painting again so it is well worth considering at this point. Thanks
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Old 11-27-2011, 10:07 PM   #13
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Re: Paint Problem

Just like Donny eyeing is from oils from your hands probably Cliff. Alcohol and a wipe down will take of it.

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Old 11-28-2011, 09:31 PM   #14
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Re: Paint Problem

fish eyes can also come from compressor oil if you are spraying
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Old 11-29-2011, 10:38 AM   #15
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Re: Paint Problem

Alcohol is actually a really terrible choice. It can cause contamination problems just as much as many other things. The best steps to getting a clean surface for paint is to:

1. Use warm water with Tide laundry detergent. Use the powdered detergent, NOT liquid, the liquids have oil based perfumes which will create problems. Wash it down, on a fabric like solartex you may even want to use a stiff bristled brush to get out of the weave but since the solartex is sealed, at least it won't be contaminated in the fabric itself. Rinse it with warm water as well.

2. Use a PROPER wax and grease remover like PPG's DX330 or the new water based cleaner, I believe it is called H2O'so'clean. Wipe down the surface with a lint free cloth and then immediately dry it with a lint free cloth.

Use a tack cloth before you paint and you should be good. Also, when you spray your first coats of paint, do it in many light coats, your first one or two coats should be dusted on. This way if there is still any contamination left, the paint is hitting the surface and drying almost immediately. Once you have coverage with the light coats you can do a wet coat, the dry coats will have built up a barrier over any contaminants that might be left and allow your wet coat to flow out.
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Old 12-17-2011, 03:57 PM   #16
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Re: Paint Problem

Up date on paint problem

I wiped it down with a degreaser and sprayed a coat of Kiltz, used the aersol can. Then the laytex was sprayed on that. Job came out pretty good but the Kiltz dried a slight bit rough so the finish is not as smooth as I would like it. I went at one of the wings with 400 wet/dry sand paper as a test and that seemed to take the remove the roughness, so I will lightly sand everything and give it another light coat of colour. I probably should have paid more attention and sanded the primer before final colour was applied.
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Old 12-18-2011, 12:34 AM   #17
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Re: Paint Problem

TSP and warm water will remove the oil. Wipe it on with a damp cloth/paper towell, dry with a dry CLEAN rag/paper towell, DON'T touch with your bare hands before painting.
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