>>From the collective wisdom of many that I have spoken to it would seem
that a
>combination of the filler supplied by Europa with the addition of around 10%
>cab-o-sil and West System epoxy is my preferred wing filler.
>
10% by weight of any coloidal silica additive is about the maximum you
should go to otherwise sanding becomes too hard. It certainly does ease
the filler's application though.
>Two of the NZ builders before me used the Europa filler and West Systems but
>did not use cab-o-sil and reported balling of the compound. I have done a
>couple of test sections with the cab-o-sil added and you can use the filler
>almost dry and it still won't ball.
>
>Tony
Take care that there's still sufficient epoxy present to adhere the
filler to the flying surfaces.
Further: Any need to add 20% C.Silica or else to help the
>> spreadibility of the mix and ease off pin holes?????
>>
>> THIS IS VERY IMPORTANT AS I DON'T LIKE TO USE SP AMPREG-20 IF THIS
>> STUFF IS TOO HARD TO WORK WITH.
See above comment.
>> All input welcome.
>>
>> Thanks,
>>
>> Christoph Both #223, Wolfville, Halifax, Nova Scotia, Canada
>> > PS to Tony the wing filling is not as bad as you seem to think the
stuff
>> on it in the mag covered it faily well I think though I would hesitate
before
>> using Gemin's ski sander even if the consequence brought a fair crop of
sweat
>> to my brow.
>>
>> It should also be made easier by the fact that, in common with several
other
>> NZ builders I am going to use West System epoxy for the filling. I asked
SP
>> in Auckland if they recommended Ampreg 20 for the finishing and their
comment
>> was "only if you enjoy tough sanding". There suggestion was to use one of
>> their other resins but I wasn't happy with a 10 minute work time!
Regards - Andy
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