Paint

[stamfordian]

It.s getting very close to painting time on the project,i ve gone for international perfection two pack to cover the hull and deck.
The boat at the moment is in it,s original gellcoat which due to many patches etc has come to the end of it,s usful life.Do i have to <font color=red> prime the gelcoat after flattening or can i just use undercoat which i have already???

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[Trevor_swfyc]

Most antifouls only require an undercoat and most antifoul makers make a matching compatable undercoat. If you mix makes then you chance a bad reaction between layers due to incompatable solvents.

I also prefer a short haired roller.

Trevor

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[stamfordian]

Ermmmm it,s painting the hull with gloss finish not antifouling,ie the whole boat/forums/images/icons/smile.gif

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[Bejasus]

I would think you would be better with somethink which will bind to the gelcoat ^ provide a good interface for the undercoat. Why not e-mail International, I found them quite helpful.

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[snowleopard]

international make a grp primer which is a very thin blue liquid. apply as directed.

don't forget that 709 must be kept completely dry for at least 24 hours after application: dew will ruin it.

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[tillergirl]

I've given my International Paints manual away to my boatyard as I use Blakes on my piece of wood, but the Blakes Paint manual recommend two coats of primer undercoat and two coats of Polygloss (their two pot for glassfibre). But before that they recommend cleaning with surface cleaner to remove any residual mould release agent (even on old gelcoat), abrade with 80-180 grade wet and dry, wash off with fresh water, allow to dray (you should have an even matt finish , fill minor cracks with two pack epoxy filler and finally wipe the surface to remove dust prior to each coat of paint (us wooden boat people use tack cloths to remove dust) - I bet you're glad you asked. Oh by the way the temperature must be above 10c with a humidity of less than 65%. Blakes helpline is 01489-864440. I guess International Paints will have the same sort of recommendations.

Good luck - us one pot paint chaps can start painting at 5c

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[steffen]

I have been there and used two layers of 2-comp. primer for better bonding of the toplayer.
Have a look at www.yachtpaint.com/. Its the International site and gives loads of info.

Happy sailings, Steffen

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[mtb]

I got two gallons of Jotun vinyguard silver grey for £65.99 from PDS in Peterborough
www.paintsales.co.uk
0173355161
Ian is the tec fella and has advised me in the past, saved me both time and money.
Their very helpful local and cheap

Cheers
Mick

<hr width=100% size=1>smile you'l be on your boat soon ;-)
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[Trevor_swfyc]

Woops my mistake sorry. /forums/images/icons/blush.gif

Trevor

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[PaulAG]

Three or 4 years ago I did this job with 2-pack International applied by brush direct to well sanded (240 grit dry) gel coat. Result not too bad and could be polished to a decent shine. This mnfrs paint is probably the fastest curing 2-pack and any of the professionals I spoke to treat it with great care. Last summer had to do it again (damage to hull) but got a pro. to help. Applied with 4" fine roller (like radiator roller) and laid off IMMEDIATELY with fine 4" brush. DO NOT go over again as it will be like treacle within about 3 mins. Once you start do not stop except perhaps at bow or stern quarters. Try and choose a warm but not too warm day with little or no wind - or do the job under cover. I was told that Blakes and Veneziani dry slower and allow more time to lay off - never tried these however.
Good luck

<hr width=100% size=1>PaulAG