Repainting question

AGalloway

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Hi ...anyone?

Such was my lack of success trying to find stuff about boat repainting on the internet I joined this forum to ask! Is there any good sites with lots of illustrations?

That said, now I can use the search engine of the forum I've read all sorts of interesting topics.

My query is, if the complete hull of a GRP boat has been prepared for repainting what is done first: topsides or below waterline - and why?

I can't make my mind up and realise there is probably an obvious reason why it has to be one or t'other!

Thanks in advance,

Agall
 

tugboat

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For the primer coats, I don't think it really matters. Just make sure you use a good quality low-grab masking tape at the waterline and let the paint that you will be sticking it to harden properly first. For topcoats, do your gloss topsides first and your antifoul just before launch. It usually says on the antifouling tin the maximum time between painting and launching.
 

tillergirl

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For me Tugboat has it right. You might find it helpful to get a copy of the free booklet that Blakes or International do about how to use their whole range of paints. Many Chandleries have them on their shelves or I think you can get the Blakes one by joining their Paint 'Club'. I think their website is under the name Hempel.
 

anglo_saxon

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the most important part of any paint job is the preparation
when you come to painting things to consider are
type of brush and tools
weather
consistancy of paint
access to the whole length of the hull
paint colour
if you have any questions i would be glad to help
 

oldharry

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For undercoats it doesnt matter, but the for the final coat start at the top, so that any spalshes, runs or other mishaps do not cause problems. Also, antifouling is best put on last so that it is fresh on immersion. Some softer types have a specified maximum time out of the water after application.
 

AGalloway

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Thanks for the response. Although I won't be painting till warmer weather, I'll be stripping and priming before that time but I might do the deck too, and first. I reckon the deck will only need a sand as it is in good condition but with some missing paint just here and there where it's chipped at the transom- hope that's correct.

Inside is more of a problem as it has flaking paint on ceiling and sides. The flaking paint just falls off in my hands and the gelcoat below looks good. I will under coat this after sanding and then??? what paint is used...would Brightsides be OK?

thanks again , Agall

PS. It's a Prelude.
 

alienzdive

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I would do all the filling fairing and sanding.
Then prime and undercoat the whole boat.
Then gloss the decks, then mask the gloss and then sand and apply the non skid to the non skid areas. The non skid should over lap the deck gloss, but the gloss should be removed by sanding up to the masked exdges.
Then gloss the top sides (hull). The gloss again will run below the waterline, then mask back upto the waterline sand back any gloss and antifoul.
Always start by finishing the higher areas and working down, that way any drips or splashes will be removed in successive coats, or later stages.
 
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