>Actually John, the difference between E glass and S glass has nothing to
>do with the weave style.
>E stands for "Electrical" grade and has a glass filament offering good
>tensile and compressive strength but relatively poor impact strength.
>This is the type most commonly used for homebuilds and marine
>applications - and is the glass supplied by Europa.
>"S" Glass was originally developed in the 1950s with a different
>chemical composition and a filament diameter about half that of "E"
>glass - giving a far greater wetted area.
agreed Nigel,
My main spar caps on the Long EZ are S glass, as is the undercarriage bow.
Thats the only application I know of.
Graham
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