Hi EdI did blister repair above the water line on my former M-17 (port rear corner on side, think it was from shrink wrap left on for a couple years but that was before I bought it) and non skid on my former M-23 on the cabin top where the mast tabernacle area had to be completely rebuilt due to water intrusion and balsa rot. For the M-17 I purchased gel coat online with the appropriate chemicals and sprayed it using a spray gun like you can get at Home Depot for a compressor system. I have a dual tank compressor that works well for spraying. That turned out really well but of course was a bit of work and learning curve. The white gel coat matched my 1977 hull really well.For the non skid I used kiwi grip on the cabin top after putting in foam in place of the balsa and putting a skin on the upper part of the skin foam sandwich. The kiwi grip tan again matched my M-23 which was kind of an off white tan so again just really lucky. The repair worked great and all I did was use the kiwi grip instructions. If any of this can help please contact me directly and we can chat more. ThanksRobbin -----Original Message----- From: Thomas Buzzi <thomaspbuzzi@gmail.com> To: For and about Montgomery Sailboats <montgomery_boats@mailman.xmission.com> Sent: Mon, Dec 28, 2020 11:36 am Subject: Re: M_Boats: Gel coat restoration On my 1977 Monty 17 I used a liquid polymer called NuGlass. It goes on with a chamois applicator which is a piece of gray pipe foam insulation wrapped with a piece of chamois available at Walmart. I put mine about 4" wide so one swipe of it along each plank on the Monty 17 left a complete covering for that strake. If your gelcoat needs only a bit of sanding to remove the oxidation this is the stuff to use. I applied about five coats on the hull. It dries so fast that when you finish the first coat you can start all over again with the next coat. I started from the top and worked down so any drips can be wiped up as you go down the hull. It took about 45 minutes to apply the five coats. It renders a deep shine that is hard and lasts for about three years. Then just wipe on more right over the old. There is a picture of the before and after on my boat as I did one side at a time. The MSOG photosite has my boat pictures, named AS-IS. I have waxed and buffed before and this treatment gives as good as or better results and is very quick! Full disclosure, I have no direct business contact with this particular company just a happy customer. Fair winds, Tom B On Mon, Dec 28, 2020 at 10:06 AM Edward Epifani <edepifani@hotmail.com> wrote:
Hey Skippers, Anyone have experience with M15-23 gelcoat restoration ? My boat previously was a Dream Boat: she sat in the sun while the owner mostly dreamed. My impression is that JM used very good technique/ materials, the damage seems minimal compared to what I’ve seen on equivalent age sun stored boats. So I’d describe the oxidation as light/moderate. I’m looking at a shurhold polish/ buffer. I’m well aware of the danger of over zealous circular polishing, seems more likely with lapstrake hull form. The Shurhold is orbital and smaller. Also would love to hear about nonskid cleaning/ restoration experience. Ed Epifani M15 ‘83, #200 something
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