West System epoxy & glass over balsa question

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Chris W - 22 Oct 2003 14:53 GMT

I have been reading about the different hardeners you can use with the
west system epoxy and for this type of application it seems to me that
the 207 hardener would be the one to use. Has anyone that has done this
before tell me it that is the one they used or not and how well it
worked?

--
Chris W

"They that can give up essential liberty
to obtain a little temporary safety
deserve neither liberty nor safety."
-- Benjamin Franklin, 1759 Historical Review of Pennsylvania

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Fritz Bien - 22 Oct 2003 18:11 GMT

>I have been reading about the different hardeners you can use with the
>west system epoxy and for this type of application it seems to me that
>the 207 hardener would be the one to use. Has anyone that has done this
>before tell me it that is the one they used or not and how well it
>worked?

Hi Chris,

Unless you're looking to show off the balsa grain, I would go with the
206 hardener. Its a lot cheaper, and has better bond strength. I use
the West over glass cloth in a vacuum-bag/prepainted mylar setting, so
the extra clarity is not important. 205 and 206 can easily be
thickened with silica (406) so they're much more versitile, besides
easier to get at the local boat store.

-Fritz

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Model Forum / Radio Controlled / Air Models / October 2003

West System epoxy & glass over balsa question