Posted by Terry Davey on November 17, 2000 at 03:59:26:
Thanks for your reply, its good to hear from you. I wondered if you tried to copy us!
I am sorry that you wasted so much money. You could have saved the expense by coming over here to see it working very well commercially.
HotVac 'dry' means negigible readings on the Tramex scale II. Also, LGC analysis indicates high peaks for phthalic acid in the exhaust vapour.
These laminates stay dry, even if left for months without gelcoat in humid conditions. But what must be understood is that the hull will have open capilliaries before coating.
Perhaps you are interested in looking at the phase change graphs for all the relevant contamination? The criteria for success is well within the range of the pressure/temperature achievable with a HotVac machine.
All HotVac experience and research suggests that your approach is effective and your conclusions accurate, but the HotVac way does achieve the same result.
Can I press you for an answer on the improvement in mechanical characteristics after heating? We are willing to share our information with you.
Best regards, Terry Davey.
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