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Thread: Removing bottom paint

  1. #1
    Yep, your gonna need stitches
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    Removing bottom paint

    This winter i want to strip the bottom paint and barrier coat and then apply fresh bottom paint. I have a sand blaster attachment that goes on the power washer and i was wondering what the thoughts were on using this to strip the bottom? what is the difference between this and soda blasting?? if im really careful do you think it would work?

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    "If at first you don't succeed, don't try skydiving"
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    a lot more work then you think could possibly do more damage than good sandblasting.

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    I think Admin is going to let me have this space JD5652's Avatar
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    I've been researching this for a long time. First of all, if you're not a professional in the sand blasting biz, I would recommend that this is NOT a DIY job. You can easily blast right through the gelcoat with a sand blaster and now you've got more problems than you started with.

    Also in some areas of the country (such as the northeast) sand blasting is now outlawed due to the environmental concerns. The law just changed here in CT.

    Do an internet search for soda blasters in your area. This has become quite a popular method of paint removal not only for boat bottoms but also for cars, bridges, graffitti, etc. I found pricing here in CT to be between $45 - $55 per foot. Then you can do any blister repairs, fairing, and barrier coating yourself.

    Good luck!

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    I think Admin is going to let me have this space Finesse's Avatar
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    Quote Originally Posted by JD5652 View Post
    Rip-

    I've been researching this for a long time. First of all, if you're not a professional in the sand blasting biz, I would recommend that this is NOT a DIY job. You can easily blast right through the gelcoat with a sand blaster and now you've got more problems than you started with.

    Also in some areas of the country (such as the northeast) sand blasting is now outlawed due to the environmental concerns. The law just changed here in CT.

    Do an internet search for soda blasters in your area. This has become quite a popular method of paint removal not only for boat bottoms but also for cars, bridges, graffitti, etc. I found pricing here in CT to be between $45 - $55 per foot. Then you can do any blister repairs, fairing, and barrier coating yourself.

    Good luck!
    JD literally took the words out of my mouth !
    Our neighbor had his 31 Bert blasted many years ago, before these more gentle medias became available ... they almost needed to redo the entire bottom it was so pocked up. It was a MESS. Stick with the Soda blasting.

  5. #5
    I think Admin is going to let me have this space jawz12's Avatar
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    Quote Originally Posted by ripcurl2785 View Post
    This winter i want to strip the bottom paint and barrier coat and then apply fresh bottom paint. I have a sand blaster attachment that goes on the power washer and i was wondering what the thoughts were on using this to strip the bottom? what is the difference between this and soda blasting?? if im really careful do you think it would work?

    i use a soda blast process-i do probably 10-15 bottom jobs every season,i have the paint blasted off,then comes the tough part,the finish part...if you would like more info,ask away...

  6. #6
    Joe Cannavo - Sales
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    Quote Originally Posted by jawz12 View Post
    i use a soda blast process-i do probably 10-15 bottom jobs every season,i have the paint blasted off,then comes the tough part,the finish part...if you would like more info,ask away...

    Jawz12 - you are correct , Soda Blasting is the easy part ! Cardinal Yachts has it own Soda Blasting Unit - there is a lot of work after the bottom paint is removed , and can be costly base on the condition of the boat !

    Cardinal Joe

  7. #7
    Stop staring at my Avatar. bvette's Avatar
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    Quote Originally Posted by Cardinal Joe View Post
    Jawz12 - you are correct , Soda Blasting is the easy part ! Cardinal Yachts has it own Soda Blasting Unit - there is a lot of work after the bottom paint is removed , and can be costly base on the condition of the boat !

    Cardinal Joe
    Soda blasting is the way to go. It is possible you can open up a bag of worms, in some cases if you have voids in the bottom they will open up. There is is no way of knowing until you blast the bottom. Also if you have blisters they may pop. You will have to grind and fill the voids or holes properly before the barrier coat goes on. The fine particals that get in the air and land on your boat or other boats in the area will absorb the paint dust into the gel coat and is difficult to get out. You will not see this until the boat sits and you get a dew and it dries. Cover as much as you can or hose off everything ASAP to avoid this.

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  9. #9
    Joe Cannavo - Sales
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    Quote Originally Posted by bvette View Post
    Soda blasting is the way to go. It is possible you can open up a bag of worms, in some cases if you have voids in the bottom they will open up. There is is no way of knowing until you blast the bottom. Also if you have blisters they may pop. You will have to grind and fill the voids or holes properly before the barrier coat goes on. The fine particals that get in the air and land on your boat or other boats in the area will absorb the paint dust into the gel coat and is difficult to get out. You will not see this until the boat sits and you get a dew and it dries. Cover as much as you can or hose off everything ASAP to avoid this.

    Ditto !!!!!!!!!!!!! Couldn't have stated it better ! Cardinal Joe

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