sand & paint bottom

H

hardboiled

Member
Hello here.
People i need someone to guide me, which tools do i need to Sand the boat bottom and remove the bad paint. Is Gelcoat better than paint? can i remove this paint and add gelcoat over it and how i do it?

please I need step by step guide on how to do this and the tools i need to buy, thanks you all

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To a point, Marine Tex would be the way to go in order to finish from clear looking fiberglass even if you are going to put bottom paint on the boat.
To a point being small or short area's easily wiped with a squeege and sanded or water sanded and buffed for finish.
Yes gelcoat would be better than paint but Marine Tex is a good inbetween solution.
Better pictures of the damage might be the deciding factor.
 
I will fix the damage but besides that which type of tools do i need to have, like sand type and tools

Do you know of any special liquid to remove the bottom paint without needing to sand it, cause the gelcoat under the paint looks good and shiny and also if there is anything to make the gelcoat shine like new again without the need to paint, please let me know

Marine tex cost alot, i think i will use Gelcoat powder mixed with resin
 
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hardboiled said:
I will fix the damage but besides that which type of tools do i need to have, like sand type and tools

Do you know of any special liquid to remove the bottom paint without needing to sand it, cause the gelcoat under the paint looks good and shiny and also if there is anything to make the gelcoat shine like new again without the need to paint, please let me know

Marine tex cost alot, i think i will use Gelcoat powder mixed with resin
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An orbital sander like a 5 inch porta cable at lowes or HD would work fine for sanding. If it was me I would sand off the rest of the bottom paint and use a barrier coat type paint on the bottom. That way if you danaged the gel coat in anyway from sanding it will seal the fiberglass.
 
When I did mine I sanded and used resin and cloth to add to the bottom, this added back the material that was lost and sealed the bottom.
Sanded nice and since my boat was painted I just repainted.

I agree with above, you must seal it before you add gelcoat or anything else.

Good Luck
 
Did mine the same way as you MJ, resin and cloth. Been about 4 yrs now no problems. Made it smooth then added bottom paint. Can't tell at all.
 
People i started sanding the bottom paint with a 220grit sand!? is this ok?

Now after i finish removing all, which paint i need to buy? How many coats do i need to add and do i have to use a primer or something like a gelcoat barrier and where do buy these stuff?

Please if someone can give me exact detail of each product i need to buy or if there is an easy guide online let me know. thanks alot
 
Nice canopy i will have in mind to see if i can get it.
Just now i separate the trailer from the boat to prepare things up.

I need to replace several rust parts on the trailer and i need an economic place to buy the parts from, like the 8 Vertical Bunk Brackets and a few square U-bolts, also i will need some tires.
 
My bottom was in the same condition. I used West system and then painted the bottom
with barrier coat and with black bottom coat.
 
msbhammer said:
My bottom was in the same condition. I used West system and then painted the bottom
with barrier coat and with black bottom coat.
Click to expand...

How much did it cost all the products you used.
Im starting sanding the bottom, then about the Barrier coat and black bottom coat which one do you apply first and how many coats do you add. I dont have experience on this at all so i need to know exact steps
 
Hnnn, I think MJ is right. I now do remember doing alot of painting. : ) on my V hull.
But dont worry, its not hard to do and not that much. Look at my gallery, I think I have a few before and after pics.
As far as all the nicks, dings, and chunks missing out of the bottom, easy fix. Go to West Marine and get some West system, cloth. Sand with 80 grit. Mix the West system, brush some on the hull and also wet the cloth with west system as well and apply. Its easy to use.
Once dry, sand fine. Sand the entire hull down with 80 git. Also use a dewaxer.
Barrier coating is a two part mix. I put four coats on my hull. But two should be fine.
Bottom paint within a day or two. If you dont, you will have to lightly sand thehull again.

West System kit and cloth. 100.00
Barrier coat. 80 bucks a kit.
Bottom paint 150.00
Keep us posted on your progress.
Any other help, email me and I will call ya.
Best of luck. If I can do it, you can as well.
Hammer.
 
How many Quarts of paint i gonna need for this bottom, 4 Quarts?

Lets say i add 4 coats of paint, i found this Rustoleum Bottom paint but cost $30 a Quart, so it isnt cheap
 
NO !!, use boat bottom paint. If ya gonna keep it on a trailer, they have boat trailer bottom paint. The paint doesnt come off like anti fouling paint. Thats the paint that wears off every season. One gallon of black bottom paint should just be enough.
The barrier coat primer paint comes in a kit. You should get two coats on with one kit.
Nice V, Looks like mine before I did all the work to it. Dont give up. Keep working on it and post Pics.
 
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