I’ve done window replacements with Plexus before, which set pretty quickly, so just having a couple helpers hold the windows in place for fifteen or twenty minutes did the trick.
Having said that, I replaced the fixed windows on my LF38 this past spring, and used the VHB tape method; no need for bracing or helpers at all. That stuff has phenomenal holding power, even on 3/8” acrylic with about a 1-1/2” bend over 50 inches length. You really have to take care to get the acrylic positioned correctly before stuff grabs; but once it’s in, it stays. I then did the Dow 795 adhesive/sealant at my leisure. Pretty slick system, and no leaks at all. The Dow seems like it will still give a just bit with flexing or temperature changes, without losing its seal or adhesion. Fred Street -- Minneapolis S/V Oceanis (1979 C&C Landfall 38) -- Bayfield, WI > On Sep 1, 2016, at 9:38 AM, Dennis C. via CnC-List <[email protected]> > wrote: > > On Thu, Sep 1, 2016 at 9:17 AM, robert via CnC-List <[email protected] > <mailto:[email protected]>> wrote: > One of the challenges is holding the new windows in place while the adhesive > cures and the forward window(s) must fit into a cavity that has slight curve > to it. I did the job in the Spring when the boat was under shrink wrap, > went around the boatyard and collected the 2" X 4" wood from covers, cut 23" > pieces and when I placed a new window into position, I wedged three pieces of > 2" x 4" against each window to the toe rail and placed 10 to 15 lbs. on each > 2" x 4" to secure it in place. Left this for 3 days before removing the wood. > > > When I replaced the curved ports on a small sport boat, I got spacing or > furring strips from a big box home store. They are about 1 1/2 inches wide > by 1/8 inch thick and about a buck each. I cut a bunch to length, wrapped > tape over one end, placed them against the ports and clamped them to the > lifelines with spring clamps. I put bungee cords across the boat lifeline to > lifeline to add compression. > > http://www.homedepot.com/p/HDX-2-in-Spring-Clamp-80002/100027346 > <http://www.homedepot.com/p/HDX-2-in-Spring-Clamp-80002/100027346> > > System worked well. > > Dennis C. > Touche' 35-1 #83 > Mandeville, LA
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