Hi Netter. I have spoken to several commercial boat builders about adding polyester onto epoxy. There answer is NO. It wont stay stuck. Then what about epoxy onto polyester. There answer is again " no " but in smaller letters. The claim is that vibration and flexing as in a boat will cause the epoxy to seperate after 12 to 18 months. There is nothing wrong with building a plane using polyester is you use the correct foam etc and can stand the smell. Essentially the impression that I got is dont mix the two. It is not necessary . Harold Woods Orillia.ON.Canada haroldwo...@rogers.com
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