Originally Posted by whee
No. I'm using the LA4123, it was the only pvc glue the shop had and they said it is what Maravia is putting in the repair kits now. I don't know if that is true but the instructions on Maravia's website says "The Clifton one-part glue provided is ready to use" so I believed the shop when they told me maraiva is providing the 4123 glue.
During my last attempt at applying the patch I tried reactivating the glue with mek. It didn't get tacky just wet. I'm going to go back to the shop tomorrow and ask them how long the glue has been on the shelf. I paid $25 for a 4oz bottle of worthless glue so I'm pretty frustrated.
I put foot cups on my Aire with Clifton. It doesn't get tacky.
I also found that I had to put on the first coat on both sides, let it dry completely, then put on the second coat on both pieces, and put the foot cup on about a minute after the 2nd coat (about long enough to screw the brush/lid back on the can). I basically pressed the two halves together and squeezed all the air bubbles out. The MEK in the adhesive either absorbed into the PVC or evaporated off, and when it was dry, it was STUCK. On a couple of small spots, I used clear PVC plumbing primer to reactivate, which worked great.
PVC plumbing primer is Tetrahydrofuran, Cyclohexane, MEK, and Acetone. Crappy stuff to inhale for sure!
Originally Posted by theBoatPeople
One is to forget the conventional glue entirely and go with Aquaseal, because trust me, it does stick. Chemically it is very similar to the coating that's sprayed on the Maravias. Even with Aquaseal, sanding can help, but it is very hard to abrade the coating.
If you try it with Aquaseal, you may want get a tiny piece of masking tape through the hole to keep the Aquaseal from bleeding through to the interior. The tape needs to be slipped through the hole sticky side up, so it is sealing the slit from the inside. Then, put a thin layer (1/16"?) of Aquaseal either on the patch or the area it will cover on the boat, lay it down, cover the patch with a larger piece of polyethylene (like from a one gallon milk jug), then put a brick or two on it overnight. Some Aqquaseal will smoosh out the edge as it dries, so the piece of polyethylene is there to keep the brick from sticking to the boat. With any pinholes the boat ever develops - and our rental Maravias did get them along seams as they aged - a tiny dab of Aquaseal works great. Aquaseal is not sophisticated and many experienced repair people turn their noses up at it, but I could give you a long list of things we fixed permanently with it over the years.
I'm also a believer in Aquaseal for pinholes and small abrasions on Maravias. I gave my 18 year-old boat an annual once-over and fixed everything with Aquaseal. If you've got a spot where the coating/pvc is cracked, or if there's a small abrasion down to the fabric in the PVC, Aquaseal will really adhere well. Larger tears, I'd recommend stitching, then gluing.
"Cotol" can be used to take Aquaseal's cure time down from 12+ hours to about an hour.