removing bottom paint

CK5 Truck · 05-29-2021, 07:08 AM

anyone know the best way to remove bottom paint? I bought a Formula that has it on it and I hate it!

DEJ · 05-29-2021, 07:12 AM

You have three options as far as I know, they are soda blasting, chemical stripping, and mechanical sanding. None are easy. Good luck.

Descant · 05-29-2021, 11:05 AM

Lots of work and you probably still won't have a nice gel coat finish. Maybe just paint the bottom a different color?

VitaBene · 05-29-2021, 11:19 AM

Quote:

Originally Posted by CK5 Truck

anyone know the best way to remove bottom paint? I bought a Formula that has it on it and I hate it!

I'm with Descant! Go with white paint.

You just moved my 65 Electraglide

Woody38 · 05-29-2021, 02:26 PM

Starten was originally formulated for bottom paint removal. At that time it was called "Dan Swetts" paint remover that works. I have used this product on many items but never on bottom paint. Worked fantastically when restoring household trim on 100 y/o house. I tried every product on the market and nothing worked until I got the Starten.
There is a video of boat use. Spray or paint it on the bottom and scrape off one area at a time.
For my use I applied the paste and however let it dry. Then I applied the liquid and was able to just wipe it off with a Bounty towel. Never raised the grain and sanding was really not necessary. Give it a try. You may have to order from Starten as it may not be available locally.

Starten.com

______________________________________

I am a retired workaholic and continuing aquaholic

CK5 Truck · 05-29-2021, 04:43 PM

Quote:

Originally Posted by VitaBene

I'm with Descant! Go with white paint.

You just moved my 65 Electraglide

as much as I think this would be the easiest solution, the current bottom paint is anything but a smooth finish, not afraid of working it til its gone and im sure a good old fashioned wet sanding and buffer will do wonders

ApS · 05-29-2021, 07:47 PM

Quote:

Originally Posted by CK5 Truck

anyone know the best way to remove bottom paint? I bought a Formula that has it on it and I hate it!

Saltwater bottom paints demand care when removing.

Some bottom paints have been outlawed worldwide due to poisonous effects.

Removal-residue should be collected as hazardous waste, especially where it could enter the Winnipesaukee Basin.

As member Descant suggested, one or two coats of white color is safest, easiest, and might smooth it out.

Descant · 05-29-2021, 08:36 PM

Perhaps we're addressing this from the wrong direction? Why buy a boat when you "hate" the bottom paint? As a Forum, we need better info as to the "hate." After all, if you run it for a couple of years a lot of the paint will be gone, especially if it is ablative.

CK5 Truck · 05-30-2021, 06:34 PM

Quote:

Originally Posted by Descant

Perhaps we're addressing this from the wrong direction? Why buy a boat when you "hate" the bottom paint? As a Forum, we need better info as to the "hate." After all, if you run it for a couple of years a lot of the paint will be gone, especially if it is ablative.

because I love the rest of it and have been searching for one for years...Ill just never understand why someone does this to a boat (ok I understand what its for) me personally would rather take the boat out of the water once a month for cleaning...but thats just me.

CK5 Truck · 05-30-2021, 06:40 PM

Quote:

Originally Posted by ApS

Saltwater bottom paints demand care when removing.

Some bottom paints have been outlawed worldwide due to poisonous effects.

Removal-residue should be collected as hazardous waste, especially where it could enter the Winnipesaukee Basin.

As member Descant suggested, one or two coats of white color is safest, easiest, and might smooth it out.

not sure where boat originated, I bought it from 3rd owner who lived on he Cape (3 years) used in salt for 2 unused last year. Bottom paint was applied then looks to be done with brush? It is wearing off in places and I have read it will eventually wear off, but how long and as you said it ends up in the lake. Like I said Im not opposed to the work it takes to remove and buff back to the original gel coat.

Descant · 05-31-2021, 10:20 AM

The bottom paint isn't just to prevent marine growth. If your boat is in the water all the time the hull absorbs moisture. On a former boat, I used to wax it every spring. At the time, waxing cost $200 and bottom paint, good for about three years, was about $600, a cost trade-off, so I stayed with wax. Some years later, a surveyor noted high moisture content after sitting in the water all summer and recommended winter drying, then a sealer and then bottom paint. We did that. Some years later, when I went to sell the boat, no moisture issues. In the interim, maintenance was cheaper than waxing, just a pressure wash and occasional touch up paint.
It sounds like the OP's bottom paint was DIY by the previous owner. In that case, it may come off more easily than a factory job.

CK5 Truck · 06-05-2021, 04:41 AM

yeah this paint is wearing out in places already. Boat never saw the water last year and was in salt the 2 previous years. The guy I bought it from said he bought it without bottom paint but did it because of using it in the ocean, mainly Cape Cod to Marthas Vinyard. (no doubt it was a DIY job, he put it on EVERYTHIING including stainless trim tabs and tie down rings, etc.) Looks like after a couple hours out on Thursday it looks like more white is showing, at least on the bottom, I guess Ill have to see how much comes off after the weekend from use. (Ill still have to do something on the transom no doubt.) As far as leaving it in the water, with a in some cases a 20 year wait for a boat slip, she will be on a trailer as I dont plan on living another 20 or so years...lol. We had a survey done on the boat (insurance requirement) and besides the blower hoses being brittle and the bilge not pumping (both fixed) the surveyor gave her high marks and only found a small area high on the transom to watch for in the coming years. Valued it 5k over purchase price.

05-29-2021, 07:08 AM	#1
CK5 Truck Member Join Date: Jun 2015 Posts: 23 Thanks: 9 Thanked 30 Times in 13 Posts	removing bottom paint anyone know the best way to remove bottom paint? I bought a Formula that has it on it and I hate it!

05-29-2021, 02:26 PM	#5
Woody38 Senior Member Join Date: May 2016 Posts: 577 Thanks: 46 Thanked 110 Times in 81 Posts	Starten Starten was originally formulated for bottom paint removal. At that time it was called "Dan Swetts" paint remover that works. I have used this product on many items but never on bottom paint. Worked fantastically when restoring household trim on 100 y/o house. I tried every product on the market and nothing worked until I got the Starten. There is a video of boat use. Spray or paint it on the bottom and scrape off one area at a time. For my use I applied the paste and however let it dry. Then I applied the liquid and was able to just wipe it off with a Bounty towel. Never raised the grain and sanding was really not necessary. Give it a try. You may have to order from Starten as it may not be available locally. Starten.com ______________________________________ I am a retired workaholic and continuing aquaholic

05-29-2021, 08:36 PM	#8
Descant Senior Member Join Date: Mar 2006 Location: Merrimack and Welch Island Posts: 4,311 Thanks: 1,328 Thanked 1,615 Times in 1,048 Posts	Hate? Perhaps we're addressing this from the wrong direction? Why buy a boat when you "hate" the bottom paint? As a Forum, we need better info as to the "hate." After all, if you run it for a couple of years a lot of the paint will be gone, especially if it is ablative.

05-31-2021, 10:20 AM	#11
Descant Senior Member Join Date: Mar 2006 Location: Merrimack and Welch Island Posts: 4,311 Thanks: 1,328 Thanked 1,615 Times in 1,048 Posts	Moisture content The bottom paint isn't just to prevent marine growth. If your boat is in the water all the time the hull absorbs moisture. On a former boat, I used to wax it every spring. At the time, waxing cost $200 and bottom paint, good for about three years, was about $600, a cost trade-off, so I stayed with wax. Some years later, a surveyor noted high moisture content after sitting in the water all summer and recommended winter drying, then a sealer and then bottom paint. We did that. Some years later, when I went to sell the boat, no moisture issues. In the interim, maintenance was cheaper than waxing, just a pressure wash and occasional touch up paint. It sounds like the OP's bottom paint was DIY by the previous owner. In that case, it may come off more easily than a factory job.

05-29-2021, 07:12 AM	#2
DEJ Senior Member Join Date: Sep 2009 Posts: 553 Thanks: 526 Thanked 314 Times in 155 Posts	You have three options as far as I know, they are soda blasting, chemical stripping, and mechanical sanding. None are easy. Good luck.

05-29-2021, 11:05 AM	#3
Descant Senior Member Join Date: Mar 2006 Location: Merrimack and Welch Island Posts: 4,311 Thanks: 1,328 Thanked 1,615 Times in 1,048 Posts	Lots of work and you probably still won't have a nice gel coat finish. Maybe just paint the bottom a different color?

The Following User Says Thank You to Descant For This Useful Post:
VitaBene (05-29-2021)

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06-05-2021, 04:41 AM	#12
CK5 Truck Member Join Date: Jun 2015 Posts: 23 Thanks: 9 Thanked 30 Times in 13 Posts	yeah this paint is wearing out in places already. Boat never saw the water last year and was in salt the 2 previous years. The guy I bought it from said he bought it without bottom paint but did it because of using it in the ocean, mainly Cape Cod to Marthas Vinyard. (no doubt it was a DIY job, he put it on EVERYTHIING including stainless trim tabs and tie down rings, etc.) Looks like after a couple hours out on Thursday it looks like more white is showing, at least on the bottom, I guess Ill have to see how much comes off after the weekend from use. (Ill still have to do something on the transom no doubt.) As far as leaving it in the water, with a in some cases a 20 year wait for a boat slip, she will be on a trailer as I dont plan on living another 20 or so years...lol. We had a survey done on the boat (insurance requirement) and besides the blower hoses being brittle and the bilge not pumping (both fixed) the surveyor gave her high marks and only found a small area high on the transom to watch for in the coming years. Valued it 5k over purchase price.