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#1
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To Sand or not To Sand - before applying anti-foul paint?
We are about to take a 4-year old Bavaria 38 Ocean to a boat yard to get a
new application of anti-fouling paint on the bottom. The boat's previous owner advised us that "the antifouling paint used is Petit Ultima SR, applied over a blue signal (base) coat. Apply 3 to 5 coats of red anti-foul paint, depending on the location (5 coats on leading edge of keel, stem, rudder, high wear areas ) and that just pressure wash until the blue signal coat appears. No surface prep is required other than the pressure wash - let the water dry off, and just roll on the new coat(s). Sanding is verboten.The paint is a soft, copolymer ablative which retains 100% effectiveness all the way through as it wears away" The boat yard says that it is nexccessary to sand the bottom lightly before applying the anti-fouling paint...and that they will not guarantee the work if the bottom is not sanded. The previous owner has always been reliable in his advise and I do not feel comfortable going against his recommendation that NO sanding is permitted. Comments??? CVJ |
#2
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We've never found sanding to be necessary. Our boats have always been
in San Diego, and we power wash, sand out chips, flakes or cracks, prime bare spots, and cover with 2 coats of paint to hull, 3 coates at the waterline and all leading edges. This is good for about 3 years on average, with monthly cleanings. In warmer water...I can't say. Keith cvj wrote: We are about to take a 4-year old Bavaria 38 Ocean to a boat yard to get a new application of anti-fouling paint on the bottom. The boat's previous owner advised us that "the antifouling paint used is Petit Ultima SR, applied over a blue signal (base) coat. Apply 3 to 5 coats of red anti-foul paint, depending on the location (5 coats on leading edge of keel, stem, rudder, high wear areas ) and that just pressure wash until the blue signal coat appears. No surface prep is required other than the pressure wash - let the water dry off, and just roll on the new coat(s). Sanding is verboten.The paint is a soft, copolymer ablative which retains 100% effectiveness all the way through as it wears away" The boat yard says that it is nexccessary to sand the bottom lightly before applying the anti-fouling paint...and that they will not guarantee the work if the bottom is not sanded. The previous owner has always been reliable in his advise and I do not feel comfortable going against his recommendation that NO sanding is permitted. Comments??? CVJ |
#3
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It would seem that a call to the manufacturer or their rep would provide the
answer. -- "Keith Hughes" wrote in message news We've never found sanding to be necessary. Our boats have always been in San Diego, and we power wash, sand out chips, flakes or cracks, prime bare spots, and cover with 2 coats of paint to hull, 3 coates at the waterline and all leading edges. This is good for about 3 years on average, with monthly cleanings. In warmer water...I can't say. Keith cvj wrote: We are about to take a 4-year old Bavaria 38 Ocean to a boat yard to get a new application of anti-fouling paint on the bottom. The boat's previous owner advised us that "the antifouling paint used is Petit Ultima SR, applied over a blue signal (base) coat. Apply 3 to 5 coats of red anti-foul paint, depending on the location (5 coats on leading edge of keel, stem, rudder, high wear areas ) and that just pressure wash until the blue signal coat appears. No surface prep is required other than the pressure wash - let the water dry off, and just roll on the new coat(s). Sanding is verboten.The paint is a soft, copolymer ablative which retains 100% effectiveness all the way through as it wears away" The boat yard says that it is nexccessary to sand the bottom lightly before applying the anti-fouling paint...and that they will not guarantee the work if the bottom is not sanded. The previous owner has always been reliable in his advise and I do not feel comfortable going against his recommendation that NO sanding is permitted. Comments??? CVJ |
#4
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I found this reference on the web today:
-----------------quote--------------------------------------- Petit Ultima SR Multi-Season ablative, rebunch without recoating formulated to provide the best antifouling protection, along with ablative technology which allows for controlled wearing away of paint film. This not only supplies a continuous source of fresh biocides but will not build up on your boat, allowing for a smoother slime-free surface with no sanding. Provides multi-season protection even after winter storage. -----------------unqt----------------------------------------- Sounds like sanding is NOT required. Claus "just me" wrote in message ... It would seem that a call to the manufacturer or their rep would provide the answer. -- "Keith Hughes" wrote in message news We've never found sanding to be necessary. Our boats have always been in San Diego, and we power wash, sand out chips, flakes or cracks, prime bare spots, and cover with 2 coats of paint to hull, 3 coates at the waterline and all leading edges. This is good for about 3 years on average, with monthly cleanings. In warmer water...I can't say. Keith cvj wrote: We are about to take a 4-year old Bavaria 38 Ocean to a boat yard to get a new application of anti-fouling paint on the bottom. The boat's previous owner advised us that "the antifouling paint used is Petit Ultima SR, applied over a blue signal (base) coat. Apply 3 to 5 coats of red anti-foul paint, depending on the location (5 coats on leading edge of keel, stem, rudder, high wear areas ) and that just pressure wash until the blue signal coat appears. No surface prep is required other than the pressure wash - let the water dry off, and just roll on the new coat(s). Sanding is verboten.The paint is a soft, copolymer ablative which retains 100% effectiveness all the way through as it wears away" The boat yard says that it is nexccessary to sand the bottom lightly before applying the anti-fouling paint...and that they will not guarantee the work if the bottom is not sanded. The previous owner has always been reliable in his advise and I do not feel comfortable going against his recommendation that NO sanding is permitted. Comments??? CVJ |
#5
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Found the manufacturer's website at www.pettitpaint.com and sent them an
email requesting their recommendations. Will post reply here. Claus "cvj" wrote in message ... I found this reference on the web today: -----------------quote--------------------------------------- Petit Ultima SR Multi-Season ablative, rebunch without recoating formulated to provide the best antifouling protection, along with ablative technology which allows for controlled wearing away of paint film. This not only supplies a continuous source of fresh biocides but will not build up on your boat, allowing for a smoother slime-free surface with no sanding. Provides multi-season protection even after winter storage. -----------------unqt----------------------------------------- Sounds like sanding is NOT required. Claus "just me" wrote in message ... It would seem that a call to the manufacturer or their rep would provide the answer. -- "Keith Hughes" wrote in message news We've never found sanding to be necessary. Our boats have always been in San Diego, and we power wash, sand out chips, flakes or cracks, prime bare spots, and cover with 2 coats of paint to hull, 3 coates at the waterline and all leading edges. This is good for about 3 years on average, with monthly cleanings. In warmer water...I can't say. Keith cvj wrote: We are about to take a 4-year old Bavaria 38 Ocean to a boat yard to get a new application of anti-fouling paint on the bottom. The boat's previous owner advised us that "the antifouling paint used is Petit Ultima SR, applied over a blue signal (base) coat. Apply 3 to 5 coats of red anti-foul paint, depending on the location (5 coats on leading edge of keel, stem, rudder, high wear areas ) and that just pressure wash until the blue signal coat appears. No surface prep is required other than the pressure wash - let the water dry off, and just roll on the new coat(s). Sanding is verboten.The paint is a soft, copolymer ablative which retains 100% effectiveness all the way through as it wears away" The boat yard says that it is nexccessary to sand the bottom lightly before applying the anti-fouling paint...and that they will not guarantee the work if the bottom is not sanded. The previous owner has always been reliable in his advise and I do not feel comfortable going against his recommendation that NO sanding is permitted. Comments??? CVJ |
#6
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According to Pettit Paint, it is up to me whether I want to sand or not...so
I guess I won't.. But now I have a new question.....according to my Volvo engine manual, I am cautioned against using a bottom paint containing Copper Oxide, as this might encourage "galvanizing" of the propeller/sail dirve...AND unfortunately, the Pettit Ultima SR does contain copper oxide... So now I am back at the starting point. "cvj" wrote in message ... Found the manufacturer's website at www.pettitpaint.com and sent them an email requesting their recommendations. Will post reply here. Claus "cvj" wrote in message ... I found this reference on the web today: -----------------quote--------------------------------------- Petit Ultima SR Multi-Season ablative, rebunch without recoating formulated to provide the best antifouling protection, along with ablative technology which allows for controlled wearing away of paint film. This not only supplies a continuous source of fresh biocides but will not build up on your boat, allowing for a smoother slime-free surface with no sanding. Provides multi-season protection even after winter storage. -----------------unqt----------------------------------------- Sounds like sanding is NOT required. Claus "just me" wrote in message ... It would seem that a call to the manufacturer or their rep would provide the answer. -- "Keith Hughes" wrote in message news We've never found sanding to be necessary. Our boats have always been in San Diego, and we power wash, sand out chips, flakes or cracks, prime bare spots, and cover with 2 coats of paint to hull, 3 coates at the waterline and all leading edges. This is good for about 3 years on average, with monthly cleanings. In warmer water...I can't say. Keith cvj wrote: We are about to take a 4-year old Bavaria 38 Ocean to a boat yard to get a new application of anti-fouling paint on the bottom. The boat's previous owner advised us that "the antifouling paint used is Petit Ultima SR, applied over a blue signal (base) coat. Apply 3 to 5 coats of red anti-foul paint, depending on the location (5 coats on leading edge of keel, stem, rudder, high wear areas ) and that just pressure wash until the blue signal coat appears. No surface prep is required other than the pressure wash - let the water dry off, and just roll on the new coat(s). Sanding is verboten.The paint is a soft, copolymer ablative which retains 100% effectiveness all the way through as it wears away" The boat yard says that it is nexccessary to sand the bottom lightly before applying the anti-fouling paint...and that they will not guarantee the work if the bottom is not sanded. The previous owner has always been reliable in his advise and I do not feel comfortable going against his recommendation that NO sanding is permitted. Comments??? CVJ |
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