I have just returned to filling & sanding my flying surfaces on my Xs Tri.
I have used the factory supplied 'expancell' & I am finding that whenever I
sand the filler back to a fine layer then use my airline or a brush to
remove the dust, a number of small 'craters' appear as if there were bubbles
trapped beneath the filler which I am exposing. I have filled & sanded some
of my surfaces three times now and the craters don't seem to be getting any
less.
I have also tried some superfil on some surfaces but am not sure that this
makes the job any better.
Any suggestions?
Richard Iddon G-RIXS
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