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General Activities => Main Message Board => Topic started by: Tom Lanzilli on March 09, 2006, 01:58:57 PM

Title: Bottom Paint
Post by: Tom Lanzilli on March 09, 2006, 01:58:57 PM
Can someone tell me how much paint it takes to apply one coat?  My plan is to apply 3 coats all together one probably red and the next two blue.  It would be helpfull if I can buy the right amount of paint while it is on sale.
Title: Re: Bottom Paint
Post by: Gary Ambrose on March 09, 2006, 03:28:56 PM
I use an ablative paint that wears away each season.  So I do one coat reapplication each year in coastal Maine sailing.  The boat is in 6 months a year.  The can suggests 400 sq. ft. per gallon of coverage.  It takes me 4-5 quarts per coat.  Hope this is helpful.
Title: Re: Bottom Paint
Post by: Ron Hill on March 09, 2006, 03:41:38 PM
TJL : You didn't mention if you are starting from the barrier coat or not.  If you are here's what I did.
1. Put on one coat of hard bottom next to the barrier coat in contrasting color to the barrier coat.
2. Cover the single hard bottom coat with a contrasting color ablative coat.  One coat!

Remember the old Chinese proverb : The more bottom paint that you put on , the more you'll have to take off!!

One single coat of ablative is good for about 1 to 3 years.  I've found that a re coat after 2/3 years is necessary to protect against slime, NOT barnacles.  You need to haul the boat in that time to clean off the junk from the running gear anyway.

To answer your question on the amount of paint per coat.  I can do my bottom with 1 gallon per coat.  
I'm sure you'll get all kinds of advice.     :thumb:
Title: Re: Bottom Paint
Post by: Stu Jackson on March 09, 2006, 05:11:53 PM
and, if you can buy the stuff on sale, then get as much as you can afford.  You'll surely need more in the future. :D ...and it's not going to get any less expensive.
Title: Re: Bottom Paint
Post by: John Fogelgren on April 14, 2006, 04:35:19 PM
For "Hard Bottom Paint", what size  roller do you suggest - 1/4" or 3/8" nap?  And do you dilute your paint with paint thinner?
Title: Re: Bottom Paint
Post by: Jeff Kaplan on April 14, 2006, 05:01:21 PM
 i use act single season ablative antifouling paint and can do the bottom and rudder with one gallon...jeff
Title: Re: Bottom Paint
Post by: Ron Hill on April 14, 2006, 06:21:13 PM
John : For a smoother finish use a 1/4" nap.
On thinning the paint? - you'll need to watch the weather and humidity.  If It's hot and dry the roller will start to "pull" and you'll have to thin the paint.  Usually the best time to paint is early AM.   :clap