"Lawrence Glasser" wrote in message
...
Gordon Niessen wrote:
You could easily test the sound deadening properties on a small length
of pipe before filling your car rack. But I have seen it used to stop
noise on metal stairs and around drain pipes. Should work fine on the
inside of pipes.

It might work but, then again, it might not. (Boy, if that doesn't cover
all the bases, I don't know what will! g)

I'd imagine that sand is a far better vibration dampener than lightweight
foam.

Probably, but I'd be tempted to try foam if I hadn't already had success
with sand. The bars would be a lot lighter.

Lloyd