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Old November 1st 08, 09:52 AM posted to rec.aviation.homebuilt
Michael Horowitz
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Posts: 159
Default Re-finishing brushed-on AFS/Stewart?

I think we would all agree a proper sprayed on surface is prefereble
to brushed on.

There are times and places where spray is inpractical; primarily a
place to do it; compressor noise primarily and overspray in the
neighborhood.

If I'm understanding correctly, you are saying that one can brush on,
but be prepared for some patient sanding; am I correct? - Mike





On Tue, 14 Oct 2008 22:46:19 +0800, Stealth Pilot
wrote:

On Tue, 14 Oct 2008 04:38:47 -0400, Orval Fairbairn
wrote:

In article
,
CB wrote:

I'm looking seriously at a project that was covered in Ceconite and
finished with the AFS /Stewart system. The topcoat was brushed on,
with less-than-lovely results. (I feel compelled to name the plane
"The Brush Stroke") It was signed off as airworthy, but I'm wondering
whether re-finishing (as opposed to re-covering) is an option. I
don't expect the stuff can be sanded smooth for a sprayed-on topcoat?


Can you make a test article out of leftover materials?

Otherwise, I would suggest that you select a small area and use #400 or
#600 grit wet/dry, with LOTS of water.

Is this the stuff done with latex?


use a random orbital sander. the sanding finish for a 600 grade disk
will look like it was done with a 1200 grade disk.
the random orbital will usually not rub through high spots on ribs.
use plenty of water (swabbed on with a sponge works) and work
patiently and with some care and you should see excellent results.

polyfiber finishes can be sanded smooth so I dont see why yours cant.

ymmv
Stealth Pilot