That is true, many different options. I would look for 1/8 or 3/16ths thick and the highest PSI rating. As I recall 140psi is the highest. If I had to choose, it would be higher psi over higher thickness.
One of the concerns which has to be dealt with if choosing only 795 sealant is that the curvature of the window will push sealant out of the middle of the glass and leave it thicker at the ends. The use of spacers is required. Whenever using the sealant, mask, mask, mask. Contour and clean the sealant in the joint. Only then should you remove the mask. Pull at an acute angle and away from the joint. Josh Muckley S/V Sea Hawk 1989 C&C 37+ Solomons, MD On Mar 29, 2017 9:21 AM, "Matthew L. Wolford via CnC-List" < cnc-list@cnc-list.com> wrote: > Thanks, Josh. > > According to Uline, which sells VHB tape, there many different varieties. > > https://www.uline.com/Grp_240/3M-VHB-Tapes?pricode=WL937&; > utm_source=Bing&utm_medium=cpc&utm_term=3m%20vhb%20tape& > utm_campaign=3M%20Tapes&AdKeyword=3m%20vhb%20tape& > AdMatchtype=e&gclid=CKm76qbm-9ICFWqbMgod3KQJTw&gclsrc=ds > > Suggestions regarding the right one? > > > *From:* Josh Muckley via CnC-List <cnc-list@cnc-list.com> > *Sent:* Tuesday, March 28, 2017 6:42 PM > *To:* C&C List <cnc-list@cnc-list.com> > *Cc:* Josh Muckley <muckl...@gmail.com> > *Subject:* Re: Stus-List Sealing fixed portlights / windows, 1994 C&C > 37/40+ > > I think Frank was just referring to the fact that silicone calk and tape > of any type are only short sighted solutions and may even make the final > repair more difficult. Silicone makes everything it touches nearly > impervious to any other adhesive or sealer in the future, and most tapes > will break down after a short period of time resulting in a messy residue > which will necessitate the used of a goo remover which may, like silicone, > make future adhesives ineffective. > > "Unless you are sailing in the rain I suggest a tarp while in the slip." > > The "right" way is generally accepted to be 3M VHB tape followed by Dow > 795 to seal the edges. Mechanical fasteners would seemingly improve the > longevity of the seal but destroy the look and would likely prove to have > unforseen disadvantages. > > Josh Muckley > S/V Sea Hawk > 1989 C&C 37+ > Solomons, MD > > > On Mar 28, 2017 4:43 PM, "Matthew L. Wolford via CnC-List" < > cnc-list@cnc-list.com> wrote: > > Okay, I’ll bite: what does it mean to “do the job right”? Caulk/adhesive, > mechanical fasteners, or both? > > *From:* Franklin Schenk via CnC-List <cnc-list@cnc-list.com> > *Sent:* Tuesday, March 28, 2017 4:36 PM > *To:* cnc-list@cnc-list.com > *Cc:* Franklin Schenk <fdsch...@flash.net> > *Subject:* Re: Stus-List Sealing fixed portlights / windows, 1994 C&C > 37/40+ > > Bruce, > > Yes, it is mostly wishful thinking as some of us learned the hard way. > Unless you are sailing in the rain I suggest a tarp while in the slip. > Later you can do the job right and not have to remove any calk or tape. > > Frank > > > On Tuesday, March 28, 2017 2:20 PM, Gary Russell via CnC-List < > cnc-list@cnc-list.com> wrote: > > > I'm guessing it's wishful thinking. The windows "work" significantly when > the boat flexes and I doubt the sealant will work for long. My previous > owner tried to smear silicon on the leaks without success. That being > said, DOW 795 is much better than the typical silicone and may work better > than what the PO used. > > Gary > S/V Kaylarah > '90 C&C 37+ > East Greenwich, RI, USA > > ~~~~~~~_/)~~~~~~ > > > On Tue, Mar 28, 2017 at 12:04 PM, Bruce Whitmore via CnC-List < > cnc-list@cnc-list.com> wrote: > > Hello again everyone, > > Our C&C 37/40+ has a minor leak or two through the fixed portlights > windows. I have read up on the removal & re-installation process, and many > seem to be recommending the VHB tape and Dow 795 sealer approach (or > similar). > > I would like to seal the fixed portlights in place without replacing them > for now. While they are showing some crazing, and I intend to eventually > replace them (say in 18 months or so), in the short term I simply want to > stop all leaks so that we can prevent any further staining of the teak. > > Does anyone have a recommendation as far as doing this? Should I simply > attempt to carefully mask the fiberglass & plexiglass on the exterior and > apply a bead of Dow 795? > > Would it be better to apply a thin layer on the inside? > > Or, am I guilty of wishful thinking? > > Thanks! > > Bruce Whitmore > > (847) 404-5092 (mobile) > bwhitm...@sbcglobal.net > > ______________________________ _________________ > > 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 <https://www.paypal.me/stumurray> > > All Contributions are greatly appreciated! > > > _______________________________________________ > > 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! > > > ------------------------------ > _______________________________________________ > > 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! > > _______________________________________________ > > 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! > > > > ------------------------------ > _______________________________________________ > > 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! > > _______________________________________________ > > 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! > >
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