epoxy not sticking

Posted by Jay on Jan 28, 2007

last night I went to sand on my deck/hull, and found that the port side had a relatively large amount of epoxy that did not adhere. it was only one layer that it occurred on, but I spent a considerable amount of sanding to do to get it off. it seemed to just keep blistering as I sanded, and flakes would just pop off. kind of like laminitis, but just like how it would pop of of a spreader or squeegee. it wasn't an essential layer, and was actually runoff from glassing the deck. but for future coats, should I be lightly sanding between each coat? everything was clean to my knowledge, anything besides water that I can use to clean with?

Thanks in advance