PVC is CHEAP! However, it has no real structural strength and, in cold weather, often gets brittle and fractures. PVC is made for carrying things like water and is definitely not made to be able to withstand any forces other than moderate pressure (i.e. water pressure).
People do make things from PVC on which they do put structural forces. However, doing so is at their own risk and quite often the structure does not survive. Glen, K9STH Website: http://k9sth.com --- On Thu, 2/24/11, Ng, Peter <peter...@bccdc.ca> wrote: curious, why PVC? Is it better than steel? _______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb