When I did the windows on both of my boats I tried for 3/16 to 1/4 inch gap around the plexiglass. It will expand quite a bit when warmed by the sun. I also tried to get everything sealed before the sun hit the plexiglass because of the expansion. On my LF38 companion way I installed 1/2 thick plexiglass doors. At night there was an 1/8 in gap. The doors would over lap by roughly 1/8+ when the sun hit them.
Sent from my T-Mobile 4G LTE DeviceDoug Mountjoy POYC Rebecca Leah Lf39 -------- Original message --------From: "Matthew L. Wolford via CnC-List" <cnc-list@cnc-list.com> Date: 12/13/17 19:40 (GMT-08:00) To: cnc-list@cnc-list.com Cc: "Matthew L. Wolford" <wolf...@erie.net> Subject: Re: Stus-List Window replacement Thanks, Gary. So in your view the sealant needs to not only fill the seam between the edge of the plexi and the boat, but also work behind the plexi a bit. Is the pressure of a caulking gun sufficient to get this done? On my boat, the plexi is tightly fitted into the cavity. Perhaps I should leave a little more room with the replacement plexi? From: Gary Russell via CnC-List Sent: Wednesday, December 13, 2017 9:38 PM To: C&C List Cc: Gary Russell Subject: Re: Stus-List Window replacement Matthew, Remember that the VHB tape is only the adhesive, not the sealant. You need to leave room for the Dow Corning 795 black silicone sealant. To me, 1/4" for the sealant seems about right. That leaves room for about 1/2" of VHB tape. Gary S/V Kaylarah '90 C&C 37+ East Greenwich, RI, USA ~~~~~~~_/)~~~~~~ On Wed, Dec 13, 2017 at 8:28 PM, Matthew L. Wolford via CnC-List <cnc-list@cnc-list.com> wrote: Listers: I know this topic has been covered ad nauseum, but I have two questions about window replacement: 1) It appears that most of you who have done the VHB tape method like 3M 4941 instead of 5952. However, when I contacted 3M and explained what I was using it for, 5952 was recommended. Any thoughts or comments on this? 2) It appears fairly well settled that 1/2" width is preferred (maybe due to Don Casey), yet some of you have mentioned coloring the area behind the window that is not taped to improve the appearance. The window "cavity" (for lack of a better term) for my windows sit is 3/4" all the way around (except for possibly the rounded corners). Why shouldn't I just use 3/4" wide tape? Have at it, and thanks. _______________________________________________ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray _______________________________________________ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray
_______________________________________________ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray
