Thanks Bob. I know I need to just dive in and do it right, but I'm always reluctant when it comes to using materials with which I am unfamiliar. Whenever a project requires mixtures and steps, it always seems the instructions don't quite cover all the variables, and only those who work with a particular product repeatedly get it right. Thanks for the link. --Craig ----- Original Message ----- From: "Bob" <Bobeeg@earthlink.net> To: "For and about Montgomery Sailboats" <montgomery_boats@mailman.xmission.com> Sent: Thursday, July 08, 2004 9:50 PM Subject: gelcoat repair Craig You don't have to use epoxy; you can use boat resin and mat. (this is for filling large gouges or deep scrapes. etc) I would sand and fill the deep parts with wet mat; let it stick up over the top; sand flush when its almost hard then use this method to finish up: http://www.boatus.com/boattech/casey/02.htm Fair winds, Bob Honshells wrote: I've lost gelcoat from sections of my hull below the waterline: A section about the size of a stick of gum near the bow, and one a little bigger than a silver dollar on the front of the stub-keel. I'm no D-I-Y'er . . . I've never tried gelcoat repair. Am I safe using epoxy to fill the gouged sections (only millimeters deep, but exposing 'glass cloth), or should I repair it the way it was built?