G'day,
Infusion done perfectly is the same weight as vacuuming, but perfect is pretty hard to achieve, so it is invariably heavier.
Infusion is a very neat process, but takes a lot of setting up and wastes more than I like. The bigger the job or the fewer the workers available, the more it appeals.
Punish yourself by cleaning resin off immediately you get it on you and you will soon develop clean work habits.
The only reason I bag a polycore laminate is to get a table finish. It is probably quicker to
hand lay it and apply a layer of bog (or peel ply) when it is green to fill the
weave. With foam, the bond between the core and the cloth is pretty poor, so vacuuming is preferred.
None of which is a deal breaker, go with whatever you are happiest with.
regards,
rob
Rob,
I am curious why you have a preference for vacuum bagging over infusion. I know whenever I get within a foot of epoxy, it gets all over me. The infusion seemed really neat, and no more effort than vacuum bagging. What am I missing?- GardnerOn Thu, Dec 25, 2008 at 1:25 AM, Rob Denney <harryproa@gmail.com > wrote:
I am building with Polyore, under vacuum, but not infusing (too much hassle for small panels). If it was not for the desire to get a mould finish on the outside, I would not have bothered bagging it. I would not infuse Polycore or Nida for the reasons stated earlier, and would not infuse foam unless there were time constraints. The 15m lee hull will be built in one panel, 7m x 15m, hand laid and vac bagged, not infused.
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