John,
You would be surprised how much variance there is on the wing.
There will be places where a 1/4" of filler is just about right. So you
just have to sand it down to the point where all things are level and
smooth. Trust me I had the classic wings and much sanding was necessary.
The wings look good now!
Jim Nelson
>
> Hi Neville
>
> OK, you are the expert, and if you say it is necessary to trowel on
> up to a
> 1/4 inch of filler, that's how I'll do it.
>
> But I would like to understand why. What is the point of putting on
> such a
> thick layer of Expancell if you are going to sand nearly all of it
> off?
>
> Regards
>
> John Heykoop
> XS mono G-JHKP, #536
>
> In a message dated 11/13/03 3:36:55 PM GMT Standard Time,
> Neville@europa-aircraft.com writes:
>
>
> > Trowel on the Expancell, trying not to get any air trapped under,
> heavy
> > pressure with the trowel will normally ensure this. Fair in the
> filler as best
> > you can, but leave it well proud, by up to 1/4'', YES 1/4 OF AN
> INCH !
>
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