The article I send David the link to states blistering can show up in 5 years. He's not too far off that, and I doubt it's a hard and fast rule. However, I would go further and say one shouldn't expect to see blistering at all in a hull that's laid up properly. Perhaps we can get comments on this subject from the boat builders amongst us... t Tom Smith Next IT 509-242-0767 -----Original Message----- From: montgomery_boats-bounces+tsmith=nextit.com@mailman.xmission.com [mailto:montgomery_boats-bounces+tsmith=nextit.com@mailman.xmission.com] On Behalf Of Irv Kooris Sent: Friday, October 14, 2005 12:26 PM To: For and about Montgomery Sailboats Subject: Re: M_Boats: Gelcoat/fiberglass My only comment is that his Montgomery is basically new. One doesn't expect to see blistering in a new boat. Irv ----- Original Message ----- From: "Tom Smith" <tsmith@nextit.com> To: "For and about Montgomery Sailboats" <montgomery_boats@mailman.xmission.com> Sent: Friday, October 14, 2005 2:13 PM Subject: RE: M_Boats: Gelcoat/fiberglass Blistering is caused by water being absorbed by the gelcoat and between the layers of glass when the boat's left in the water. You can live with them (as long as they don't get a lot worse), or you can eliminate them. Eliminating them entails grinding them off and filling the voids. I can't imagine it's too much fun. There's a simple explaination here: http://www.boatsafe.com/nauticalknowhow/1220983tip.htm /)) Tom Smith & Jane VanWinkle M15/345--Chukar M17/496--Unnamed _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats