REFLECTOR: Paint question

[Scott Derrick]

Clear coat provides no UV protection.

Its all in the color coats..

Scott

Terry Miles wrote:
> Thanks Al.
> Thanks to John T too. It is Akzo Nobel I guess, sorry for the 
> misspelling...but they are just the wholesaler. The base primer is a 
> 2K something, but I think we have different numbers after that, and 
> hardener often is just dry time issues. My point was Sullivan paints 
> wrecked cars for insurance carriers, but that he and I could both run 
> over to A-N and make sure we had compatible stuff for the top coat, 
> since it is all their product line.
> It's a great deal I have going here. We are across the street from the 
> airport in an industrial park, so we will just push it down the block 
> to the body shop! And when we are all finished up with that we will 
> push it across the street, thru a hole in the fence and tuck into a 
> hangar. (The tower chief is building a Cozy.) Don't get no better than 
> this!
> Al, I am thinking that a light coat of anything that matches my primer 
> could possibly be enuf, so I told him probably only one coat there. My 
> primer probably doesn't have any UV protect in it...so maybe two and 
> two like you suggested would be a good idea afterall. My first 
> thoughts were since clear coat is pretty thin stuff anyway, it would 
> help with overall appearances and give me some durability in case I 
> got over zealous rubbing off fried/dried bug smacks on the leading edge.
> Thanks, you guys.
> Terry
>
>     -----Original Message-----
>     *From:* reflector-bounces at tvbf.org
>     [mailto:reflector-bounces at tvbf.org] *On Behalf Of *Al Gietzen
>     *Sent:* Friday, January 20, 2006 10:46 AM
>     *To:* 'Velocity Aircraft Owners and Builders list'
>     *Subject:* RE: REFLECTOR: Paint question
>
>     We've agreed to buy the paint
>
>     from Akel Nobel which should eliminate any product compatibility
>     issues.
>
>     Here's my question. Cars normally get 3 coats of clear coat. Any
>
>     opinions out there on how many coats is enuf for an airplane? I
>     hate to
>
>     add unnec weight.
>
>     Thanks,
>
>     Terry
>
>     Terry;
>
>     I have no idea about Akel-Nobel (never heard of it and can’t find
>     it on the web); but the PPG paints all use 2-3 coats base and 2
>     coats clear. So I’d think 2 full coats clear should be fine.
>
>     I think it is a common misconception that the two-stage paints
>     result in more weight. It is all about total thickness of the
>     cured system. With the PPG I found that two base coats dried very
>     thin (maybe 2-4 mils) and the total with 2 full coats of clear was
>     about 7-9 mils. (I measured some flakes off the adjacent vinyl
>     fine-line tape.) IIRC, the recommended total thickness for the
>     single stage paints like Awl-grip and Emron is similar.
>
>     FWIW,
>
>     Al
>
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