Hi allIf you google search for waterproof spray foam for marine use or some such mixture of words, you can get an idea of the vast amount of product out there. I would have NO problem using some of that stuff in rocker panels especially if the boat builder guys are using it. Back in the day of 10-12' backyard satellite dish installs, we sometimes used a 2-part foam product instead of cement to hold those big dishes in the ground. I don't recall if we even mixed it before we poured it in, I think we may have just simultaneously poured the two parts into the hole and let it do it's magic. I can't vouch for how much the cheap stuff expands but I can vouch for the fact that the foam we used expanded so much that the pole was not moveable at all within a short period of time even with the windload on it from the big dish. I have never known of any of these installs to have a problem with the foam. If I remember correctly, to remove the pole, all we needed to do was pour acetone into the hole and the foam would disappear.
Doug _______________________________________________ AMC-list mailing list AMC-list@xxxxxxxxxxxxxxxxx http://list.amc-list.com/listinfo.cgi/amc-list-amc-list.com