Peter, If the windows are original, they were probably put in with Plexus. It will be a very hard, brownish adhesive. It sets up very hard and usually requires a grinder to remove. If the adhesion has let go, you may be able to remove some of it with a stiff putty knife. I use a 4" angle grinder and a dremel to remove most of it, being careful to not damage the flat surface of the gelcoat.
I've done this twice in the 16 years I've had my boat. It's always a chore, but the finished product looks awesome. Jake Jake Brodersen C&C 35 Mk-III “Midnight Mistress” Hampton VA -----Original Message----- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of PETER OCAMPO via CnC-List Sent: Monday, January 9, 2017 10:51 To: cnc-list@cnc-list.com Cc: PETER OCAMPO <bcwwka...@gmail.com> Subject: Re: Stus-List 1983 fuel tank. Stuffing box and windows What did you use to remove old adhesive i your windows _______________________________________________ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!