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Gene Kearns wrote:
On 29 May 2006 18:48:04 -0700, penned the
following well considered thoughts to the readers of rec.boats:

Vacuum "bagging" is an injection process. The bag around the dry layup
allows a vacuum to develop so the resin can be sucked and pumped
thorughout the fabrics and (possible) cores.

No, Vacuum bagging is just that ..... using a vacuum inside of a bag.
We use that method frequently in composite repair and there is no mold
nor injection equipment involved. Certainly, in a manufacturing
setting you could employ a vacuum to do as you suggest, but vacuum
bagging, per se, is not an "injection" process.

The layup process I am referring to would not be possible without the
vacuum created by enclosure in a bag. I will concede that I should have
considered the difference between "injection" and "infusion", as the
latter term would have been a more accurate usage.