When to Bottom Paint

D

dmunneke

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I know there will be at least an opinion or two on when it is time to bottom paint... Mine is a couple years old, has a couple chips but looks really pretty good.. So what are the guildlines?
 
If it's ablative, you can always put another coat on it, or you can touch it up and let it ride another season. I have a different color as a base-coat so I don't apply another coat until I see that one starting to show through.
 
same as Kurt, I have a coat of Blue and two coats of Black,,when I see blue it is time to paint.

There are many types of bottom paint and some lose effectiveness if they are out of the water too long after application.
read the labels of your choice.
 
My understanding is: If it's a non-ablative bottom paint, the copper content on the surface will oxidize while dry docked. Not being ablative, it will not wear away exposing fresh copper.
 
It all depends on what type of paint is on the bottom now. If it's a multi-season ablative, a touch up and you're good to go. If it is a hard epoxy paint, they only have anti-fouling properties for one season and need to be re-applied yearly.
 
No magic answer. FOllow manufacturers instructions. You'll soon detrmine whether it was right or wrong. The idea is to not allow marine growth to get established. Many ways to that Holy Grail. Good Luck.
 
quote:
Originally posted by Gregory S

It all depends on what type of paint is on the bottom now. If it's a multi-season ablative, a touch up and you're good to go. If it is a hard epoxy paint, they only have anti-fouling properties for one season and need to be re-applied yearly.

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Reason being, the exposed copper oxidizes; much like ablative paint. Difference being the ablative paint wears away exposing fresh copper while cruising. One could sand hard epoxy paint & expose fresh copper like ablative paint. This would work tho paint mfg. won't tell you this. Not the cleanest job in the world but you wouldn't be adding another coat of paint to hull.
 
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