Bottom Paint Recommendation

[CJ River Rider]

Can someone recommend a bottom paint for below. The boat was bought used and now is a trailered only boat. This would be for looks only.

The paint rubs off when you touch it but not as much as in the past. Got a price on soda blasting and that's out of the question. I really don't want to go the route of sanding and chemical removal and would prefer just priming/painting or painting alone.

 

[dingbat]

Can someone recommend a bottom paint for below. The boat was bought used and now is a trailered only boat. This would be for looks only.

The paint rubs off when you touch it but not as much as in the past. Got a price on soda blasting and that's out of the question. I really don't want to go the route of sanding and chemical removal and would prefer just priming/painting or painting alone.
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There are no shortcuts when dealing with bottom paint. Once applied, your have to deal with the consequences. Either maintain (sand and repaint) every year or remove completely and start over.

Not only do you compatibility issues (paint) to deal with, you can not paint over loose or flaking paint. The whole things needs to be scraped and sanded down to solid material prior to applying new paint.

I used Interlux BottomKote on my last boat. Worked well for the application but you will still need to refresh every couple of years

 

[Scott Danforth]

I used to just re-roll the ablative paint, then when I did the restoration, I sanded it all down and re-sprayed gel.

there are no shortcuts

 

[Chris1956]

Since you are trailering, you do not need antifouling paint. However, since you have it, you have two choices. Either strip it off completely, or cover it with another antifouling paint.

A-F paint is soft, so it cannot be covered with a hard paint. Repainting it with a cheep A-F paint is the easiest, but not the best.

The other alternative is to strip it off (24Grit grinding wheel), and then sand, prime and paint it with 2 part marine polyurethane paint. I would do the former....

 

[CJ River Rider]

Since you are trailering, you do not need antifouling paint. However, since you have it, you have two choices. Either strip it off completely, or cover it with another antifouling paint.

A-F paint is soft, so it cannot be covered with a hard paint. Repainting it with a cheep A-F paint is the easiest, but not the best.

The other alternative is to strip it off (24Grit grinding wheel), and then sand, prime and paint it with 2 part marine polyurethane paint. I would do the former....

Thanks, I wasn't aware that there was a 2 part marine polyurethane that could be used "under" the water line. Do you know of any you can recommend?

 

[Chris1956]

I have not use it, but Interlux Perfection is a 2 part polyurethane that claims to be able to be used below the waterline. I have used Interlux Brightside, which is a 1 part topside polyurethane, and it is very good, but pricey.

 

[dingbat]

Thanks, I wasn't aware that there was a 2 part marine polyurethane that could be used "under" the water line.

In the scheme of things this is the most work with little to no “cosmetic” return.

Unless you paint the entire boat, it simply looks like you have “white” bottom paint on the boat. Still stains and discolors over time

Even if you don’t need to anti-fouling properties, it’s far easier to keep black bottom paint looking good over time clean.

 

[CJ River Rider]

There are no shortcuts when dealing with bottom paint. Once applied, your have to deal with the consequences. Either maintain (sand and repaint) every year or remove completely and start over.

Not only do you compatibility issues (paint) to deal with, you can not paint over loose or flaking paint. The whole things needs to be scraped and sanded down to solid material prior to applying new paint.

I used Interlux BottomKote on my last boat. Worked well for the application but you will still need to refresh every couple of years

 

[CJ River Rider]

Thanks for the info on the Interlux BottomKote paint. Sanded the best I could and 2 coats of this makes the boat so much better looking. Nice that is doesn't rub off on me when I touch it.

Thanks again!

 

[wooky30014]

Yeah I'm late to the party but at least it's still going on (still 2022). I have a similar dilemma with a trailered boat that needs painting (actually a paint job needing completion) and not needing anti-fouling type. I may have come across the answer with a paint that is tough as nails and can be immersed for several days at a time (weekends and vacations). **Disclaimer, I have no monetary interest in this product and am posting here for informational purposes only**. Hamilton has Lobster Buoy paint, starts at 14 bucks a quart, both water and oil based and the video I watched on this paint convinced me it was the type that I need, Black for underwater and White for the OB bracket I have. I'll need to sand the hull smooth and remove whatever is on it now and prop up the hull to paint the entire bottom and likely replace the bunks on each side while I'm at it.