On Sun, 6 Jun 2010 12:54:41 -0400, "Ed Huntress"
wrote:

BTW, what's the latest word on vinylester? I haven't seen much about it
recently. R.Q. Riley uses it for his carbon-fiber recumbent bicycle,
because, he says, you can use it with carbon fiber without the need to
vacuum-bag it. Do the rocket guys use vinylester for anything?

I don't know of any rocket guys using vinyl ester. I'm just barely
aware of the product. As I said, most if not all of them use epoxy.
Worth noting: the hobbyists who do high-power rocketry are *not*
necessarily technologically savvy. Some of the best rocket motors and
rockets I've ever seen were constructed by a friend who has a GED and
runs a welding shop in his real job.

Best -- Terry