Join Date: Feb 2010
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Plexiglass replaced in hatch, came unglued.
Dropped a snap shackle on the hatch and put a hole in the Plexiglass, whoops. So I just replaced it using the same 3/16" tinted Acrylic, custom cut for $63. I used 3M 4000UV to adhere the Plexiglass to the aluminum frame, but about a week later a lot of the glue UNadhered.
This is a Cal 39, capable of heavy off-shore cruising, so I'd like to trust the fix.
Any recommendations on products to fix the glass to the frame that will last 30 years?
Pic 1: I liked the old glue a lot. It lasted for at least 5 years since before I bought the boat, yet was fairly easy to pry off and clean. It was a black, rubbery feel, but I'm not sure what product it is. I cleaned it completely using a soft dremel, scrapers and acetone.
Pic 2: I then squeezed exactly 2 tubes of 3M 4000UV to replace the old glue, wiped the excess and pressed the bubbles out until tacky.
Pic 3: You can see there's no bubbles with full glue coverage the next day after drying. Should work, right?
Pic 4: I don't like how quickly the 4000UV tacked up, making it tougher to smooth out the bead, but that's cosmetic only.
2 weeks later, about 50% of the Plexiglass had loosened up from the Plexiglass (not the aluminum), allowing water to leak into the V-berth. You can press down on the glass and see where the glue is sticking and where it's not. Maybe use a different glue? Or did I not prepare the Plexiglass correctly? I just peeled off the paper and stuck it on the glue.