While the first large layup we did a week ago came out fine, we decided to change to the Aeropoxy PH3665 hardener for 120 minutes of pot life instead of 60 minutes of pot life. The idea is that any excess epoxy in the layup would be more liquid during vacuum bagging and thus more would be removed.
It has become apparent that the vacuum pump we have been using (a 'wet' type pump generally used for servicing air conditioning) is not going to work. It gets very hot after 6 hours and emits a fine fog of oil mist while running. We are switching to a Gast DOA-P101-AA pump from eBay.
Time Spent Today: 2.0 hr
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