We have just purchased a 1995 Hunter 29.5. The previous owner recommended we paint the bottom as its not been done. Is it essential that we sand off ALL of the old bottom paint? We did power spray it after pulling. Any idea what paint we should use? Thanks!
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Paul Akers
If it's ablative...
...paint that's on there, then I wouldn't worry and it only needs to be scratched up before painting another coat. But if it's non-ablative, you want to avoid a build-up of the bottom paint and sand the whole thing. Ablative costs more, but you will have to do very little sanding in the future - a thankless job. Ask the previous owner what type of paint is currently on the boat.
...paint that's on there, then I wouldn't worry and it only needs to be scratched up before painting another coat. But if it's non-ablative, you want to avoid a build-up of the bottom paint and sand the whole thing. Ablative costs more, but you will have to do very little sanding in the future - a thankless job. Ask the previous owner what type of paint is currently on the boat.
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Russ Garecht
You need more information
Before doing anything you need to find out what type paint is on the hull now! Many others on the forum can give a more elaborate answer but I know that some kinds of bottom paint can’t be painted over each other. Find out what paint is there now then talk to some one knowledgeable about paints and find out if it can be painted over or not. That, and the condition of the current paint, will determine how much sanding will have to be done. Good Sailing, Russ
Before doing anything you need to find out what type paint is on the hull now! Many others on the forum can give a more elaborate answer but I know that some kinds of bottom paint can’t be painted over each other. Find out what paint is there now then talk to some one knowledgeable about paints and find out if it can be painted over or not. That, and the condition of the current paint, will determine how much sanding will have to be done. Good Sailing, Russ
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Dennis
More Info Too
Does it have a barrier coat? If not, you should remove the old paint down to the fiberglass and start back with a good barrier coat, then apply bottom paint.
Does it have a barrier coat? If not, you should remove the old paint down to the fiberglass and start back with a good barrier coat, then apply bottom paint.
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Rudy P.
don't sand the old paint off. Needs to be pressured cleaned let dry and then paint. I used TRINIDAD PETIT on my 29,5 and it is just great. Painted 1 yr. ago bottom clean 1 every 3 months. nothing seems to stick to it. good luck
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Pat Spino
1. Find out what is on there now 2. go to Interlux paint web site and get information about the various bottom paints from them, or/and go to West Marine and get the Interlux booklet on bottom paints. 3. The 29.5 is a relatively new boat and PROBABLY (?) does not have a build up problem, especially since the previous owner said it needed painting. 4. I HIGHLY recommend an abalative bottom paint. Interlux Micron CSC, Interlux ACT, West Marine CCP (made by Interlux!). MOST LIKELY it will be able to be put on over what you have on there with a good sanding, but find out. 5. If so, you will bless the day you used the abalative paint because: a) No more sanding except for fairing in any chips and bare spots. b) No more buildup because Abalative paint is designed to ware away as the boat moves through the water taking with it any barnacals, weed, etc. c) BECAUSE it is designed to ware away it uses less copper content!!! d) Except for Interlux ACT they are Multi-Season paints. They go dormant in the off season when hauled. When ready to launch simply scrub with a stiff brush and water and launch IF THERE IS ENOUGH PAINT STILL ON THE BOTTOM FOR ANOTHER SEASON. In theory the abalative should be applied in two or more coats with each coat expected to last a season. 4 coats=4seasons. In actuality, you will find it necessary to fair and paint bare spots from peeling and you will want to add new paint to the leading edges which ware faster for obvious reasons. I went to abalative paint several years ago and will never go back. My lungs are too valuable to breath in sanding dust (even with the best mask/resperator). The stuff gets in you pores. Sorry for the lon winded answer, however, I hope it helps. Good Luck, PAT
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Bruce
You didn't ask, but ...
You didn't ask about a recommendation, but I'm pretty happy with my paint. For the same reasons that Pat mentioned, I went to ablative also. After trying the major brands, I tried the West Marine CPP last time and have already gotten an extra year out of what I was used to and after checking my bottom last week (an unusually low tide made that easy!) it still looks great. I'm on my third year with my current bottom paint and am very pleased with it.
You didn't ask about a recommendation, but I'm pretty happy with my paint. For the same reasons that Pat mentioned, I went to ablative also. After trying the major brands, I tried the West Marine CPP last time and have already gotten an extra year out of what I was used to and after checking my bottom last week (an unusually low tide made that easy!) it still looks great. I'm on my third year with my current bottom paint and am very pleased with it.
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