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Gelcoat Blisters - now what

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  • Gelcoat Blisters - now what

    Well this is certainly not how I planned to end the boating season. Took the boat out on Saturday to winterize then while cleaning the hull noticed what appear to be blisters in the gelcoat. They are sporadic across the entire hull under the water line predominantly on driver side, but I also noticed some on the passenger side. On top of that, the prop was sent in to get refurbished and I noticed the prop shaft is in need of an alignment.

    Anyone had to deal with gelcoat blisters? Any ideas on costs to get this fixed? I sent these photos in to a couple of repair shops now just waiting to hear back.
    Attached Files

  • #2
    i had them on my old 2005 supra ssv22. the dealer and skier's choice accused me of leaving the boat in the water for long periods of time. i told them it was always trailered and only left in the water for 3 nights while on vacation at table rock. also they blisters were exactly where the trailer bunks were. well since the boat was less than a year old they "skier's choice" repaired the blisters along with gel coat cracks on the deck from the tower.

    well the following summer all the blisters came back. this time skier's choice wanted to send the boat back to the factory and break it apart and put a new hull on it. i refused to do that and had them repair the blisters again and sold the boat.

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    • #3
      That's a tough one. How long do you leave it in the water? I'd find a way to keep it out of the water and just leave them alone. It doesn't look like the damage there will affect the boat much as long as you don't leave it in the water. Or even better have them repaired. Even if you have them repaired you can't risk leaving it in the water for extended time. Your other choice is a bottom paint and then you can leave it in. But that will de-value the boat I believe.
      '97 Prostar 190 - LT-1

      Prior boats - 2009 X14, 2008 X14, 2005 197, 1988 Tristar 190, 1989 Prostar.

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      • #4
        Originally posted by JohnE View Post
        That's a tough one. How long do you leave it in the water? I'd find a way to keep it out of the water and just leave them alone. It doesn't look like the damage there will affect the boat much as long as you don't leave it in the water. Or even better have them repaired. Even if you have them repaired you can't risk leaving it in the water for extended time. Your other choice is a bottom paint and then you can leave it in. But that will de-value the boat I believe.
        leaving the boat in the water for the summer is very, very common here so I really never thought anything of it. Perhaps a lot just live with blisters or it just isn't that common, I am not sure. I am going to wait until I see what the quotes are before I decide, on one hand I am trying to tell myself just to live with it but on the other it is already stressing me out and I'm not sure I could put my boat back in the lake next year knowing the blisters are there.

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        • #5
          Mine sits in the water all summer, and I've never had a blister in the 3 years I've owned it.

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          • #6
            2001 had a know defect in the gel, should be covered under the life time warranty

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            • #7
              Originally posted by snork View Post
              2001 had a know defect in the gel, should be covered under the life time warranty
              seriously? everything I have found said mastercraft does not warranty blistering of the gelcoat.

              Comment


              • #8
                sad irony - can't leave a boat in water...
                Last edited by mikeg205; 10-16-2013, 08:31 PM. Reason: can't spelt
                sigpic...A bad day water skiing still beats a good day at work...1995 Pro Star 205....

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                • #9
                  There is a whole sheet in my 88's manual in regards to gel coat blistering and MC's recommendation to have the boat bottom painted if it was gonna sit in the water.

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                  • #10
                    I would get them fixed, find a local fiberglass shop and get opinions also. They are not a good thing to have

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                    • #11
                      Ive been dealing with the same issue for 7 years. If your issue is the same as mine (and it looks the same to me) they will get worse every year. I now have blisters covering the entire bottom of my boat.
                      If i could do it over again id have it barrier coated (interlux 2000) and bottom painted. Sure it would hurt the resale, but im guessing it'll be hard to sell the boat at all with my extensive blistering.
                      Or, just get a lift or trailer. Too much current and level change for my location. The hydro hoist lift guys said no way to my application.
                      All this being said, i havs done much research, and this 'acne blistering' is cosmetic as far as most of the boating community is concerned. Most of the information you will find on the net is related to MUCH larger blisters, like 2" and ofter 6" in size, obviously that is a serious problem. Alot of people are misinformed because of this.
                      Now for skiing, the acne blistering we have could perhaps affect the wake, weight, top end etc.... but in such small numbers, i cant imagine it will affect anyone who will ever ski behind my boat. If wade cox is your skiing partner, send em over to see if he can tell the diff
                      My ride is an 01 prostar, ive tried numerous times to get MC to help on the warranty, but no go. If you have better luck, PLEASE let me know! I have gotten two quotes, MC directed me to Rambo Marine in the south. I sent pictures (its a 20 hour drive) and was budgeted 8000. No local dealers here would take it on, but i found a yacht repair place that gave me a 6500 estimate. Keep in mind this was for an entire bottom peel, re-gel, barrier coat, and bottom paint. Boat was only 4 years old at that time.

                      Feel free to pm me if youd like,
                      Dave

                      Comment


                      • #12
                        Originally posted by agua4fun View Post
                        Ive been dealing with the same issue for 7 years. If your issue is the same as mine (and it looks the same to me) they will get worse every year. I now have blisters covering the entire bottom of my boat.
                        If i could do it over again id have it barrier coated (interlux 2000) and bottom painted. Sure it would hurt the resale, but im guessing it'll be hard to sell the boat at all with my extensive blistering.
                        Or, just get a lift or trailer. Too much current and level change for my location. The hydro hoist lift guys said no way to my application.
                        All this being said, i havs done much research, and this 'acne blistering' is cosmetic as far as most of the boating community is concerned. Most of the information you will find on the net is related to MUCH larger blisters, like 2" and ofter 6" in size, obviously that is a serious problem. Alot of people are misinformed because of this.
                        Now for skiing, the acne blistering we have could perhaps affect the wake, weight, top end etc.... but in such small numbers, i cant imagine it will affect anyone who will ever ski behind my boat. If wade cox is your skiing partner, send em over to see if he can tell the diff
                        My ride is an 01 prostar, ive tried numerous times to get MC to help on the warranty, but no go. If you have better luck, PLEASE let me know! I have gotten two quotes, MC directed me to Rambo Marine in the south. I sent pictures (its a 20 hour drive) and was budgeted 8000. No local dealers here would take it on, but i found a yacht repair place that gave me a 6500 estimate. Keep in mind this was for an entire bottom peel, re-gel, barrier coat, and bottom paint. Boat was only 4 years old at that time.

                        Feel free to pm me if youd like,
                        Dave
                        A guy here in TN does good restoration glass work. For example, I recently saw a boat on his yard that he was stripping the gel and re-spraying an entire new color scheme.

                        I'd say he would rework the bottom of your hull.

                        .
                        93 190
                        .
                        Don't be a boot licker
                        .

                        Hose picture (internal) http://www.mastercraft.com/teamtalk/...68&postcount=8

                        sigpic

                        ..Some of you give a whole new meaning to the phrase "another @sshole with a Mastercraft."

                        RE: Thrall, Welcome to the club....
                        NEW SKINS in TN... Leading Edge Marine Interior

                        feedback on a TN company: http://www.mastercraft.com/teamtalk/...ad.php?t=58767

                        .

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                        • #13
                          My boss has a 32' Bayliner that he leaves in the water all the time and he had blisters and got them all sanded out. He had to let the hull dry out for a couple months or so before sealing and applying bottom paint. A shop in Nashville did the work but I have no idea what they charged him.

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                          • #14
                            Originally posted by CC2MC View Post
                            My boss has a 32' Bayliner that he leaves in the water all the time and he had blisters and got them all sanded out. He had to let the hull dry out for a couple months or so before sealing and applying bottom paint. A shop in Nashville did the work but I have no idea what they charged him.
                            Do Searays have this problem?
                            sigpic...A bad day water skiing still beats a good day at work...1995 Pro Star 205....

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                            • #15
                              Originally posted by mikeg205 View Post
                              Do Searays have this problem?
                              Those high quality boats...I doubt it

                              I had one place get back to me who would sand, epoxy fill the blister then interlux 2000 epoxy barrier and epoxy paint the bottom for just shy of $3,500. Guy told me he has seen this kind of blistering a lot especially over the last decade. I have also reached out to Mastercraft so will wait and see what comes of that.

                              I cringe to think what it will cost to have it re-gel

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