Acrylic latex caulk?

  • Thread starter Stephen O'Brien
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Stephen O'Brien

Has anyone used acrylic latex caulk on their boats? If so, for what kinds of applications is it good for? Any brands that stand out? thanks
 

Ross

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Jun 15, 2004
14,693
Islander/Wayfairer 30 sail number 25 Perryville,Md.
I have used acrylic latex caulk

siliconized acrylic caulk. urethane reinforced acrylic caulk. The urethane reinforced is best. It is great anywhere above the waterline. Don't let it get water wet before it has cured. I don't know where you are but if you have access to a Duron Paint store they sell excellant grades. Stay clear of any that are not rated for 50 or 60 years. That is meaningless except as a reference to the expectations for its life.
 
Jun 4, 2004
629
Sailboat - 48N x 89W
Don't use latex

Latex Caulks (Acrylic & Vinyl) are adequate Architectural products, not suitable for use on a boat. Acrylic latex caulks are comprised of acrylic polymers, latex, water, and fillers. They bond very well to porous materials such as wood, masonry, plaster, and drywall in DRY areas. These caulks cure, or dry, as the water in them evaporates. They have no use on a boat.
 
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Ross

Gord, This seems to be my

day to disagree with many people. The modern Acrylic caulks stick like a brother to vinyl, fiberglass, aluminum, wood, stainless steel, sheet glass, textile fibers and tools. It lasts, that is has a service life of more than ten years. I know because I used it to bed the Lewmar port lights in my boat 12 years ago and have no leaks. I would never recommend it below the water line but topside it serves very well.
 
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