Like Alan, I used 9mm smoke acrylic. Set in with 3M black VHB. Finished off with a high quality black silicone. Don’t fret the application pressure thing; once set in place the ports are not moving. Gentle strong pressure for a minute or so all that is needed.
Second time I’ve replaced them, last time using sealant. Never do that again. Have photos of process if desired. Regards, Dave 1982 C&C 37 - Ronin Sent from my iPhone > On Nov 10, 2019, at 11:01 AM, ALAN BERGEN via CnC-List > <cnc-list@cnc-list.com> wrote: > > > I used 9mm cast acrylic, applying it with Plexus. Don't use extruded, as it's > weaker. Lexan is stronger than acrylic, but it scratches more easily. > > Alan Bergen > 35 Mk III Thirsty > Rose City YC > Portland, OR > >> On Sun, Nov 10, 2019 at 7:38 AM Patrick Davin via CnC-List >> <cnc-list@cnc-list.com> wrote: >> I'm getting ready to do the windows project and have read the prior threads >> about it (plus the helpful Boatworks youtube video). >> >> When others did this project, on Landfall 38 or similar sized C&C's, did you >> use 3/8" thickness or 1/4" on the new windows? >> >> My existing windows are 3/8", thrubolted with black sealant. The sealant >> squeezed out to the edges due to the thrubolting, so the windows are very >> much flush with the inner fiberglass. I'm wondering when I switch to VHB, >> will the tape thickness (0.045 in / 1.1mm) cause the windows to protrude >> noticeably? >> >> Paul on SV Johanna Rose (LF38) says on his blog that he used 1/4" thickness >> (Lexan/polycarbonate, which I am not doing). >> >> Another thought is if others used 1/4" acrylic, will I be able to flex 3/8" >> acrylic enough to fit the contour of the hull? 3/8" is pretty stiff. I've >> read about the different methods people used to hold the windows in place >> until the VHB cures and am thinking of using the weighted plank method >> (place wood boards at an angle to the exterior and put weights on them to >> apply pressure) plus just manually holding in place for the first 10-15 min. >> >> -Patrick >> 1984 C&C LF38 >> Seattle, WA >> _______________________________________________ >> >> 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://urldefense.proofpoint.com/v2/url?u=https-3A__www.paypal.me_stumurray&d=DwICAg&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=9w3G7Cf8YfQnrjmtuNxwDJYr3JMv9f1pAfgAJ9xXYQQ&m=pV1Lr2OtUwFQuIz-_mY-UxEztI0G1lIEkTXWsWFQiII&s=Zua4MR4wXKsjhYi-eA-cwNzZFAK-_6ml2WfnxK8Ud_c&e= >> >> > _______________________________________________ > > 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 >
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