Deck paint on bare gelcoat......

[wooslehunter]

I've finally bitten the bullet & am scraping the deck paint on my coach roof back to gelcoat. Every year, I got a few cracks under which is flaking paint. I've been rubbing down & re-painting but what's underneath is dodgy. So I'm removing all the dodgy previous paint & starting again.

The question is, how should the surface be primed prior to finishing with a few coats of deck paint. The data sheet for International Interdeck suhhests no priming is necessary.

Any advice please or anyone had problems just applying direct on abraided gelcoat.

 

[omega2]

www.SHEPHERDMARINE.COM

 

[VicS]

This is what International Yachtpaint say before applying their deck paint "Interdeck"
[ QUOTE ]
AGED/WEATHERED GELCOATS: Due to the potentially porous nature of aged/weathered gelcoats the risk of solvent/moisture entrapment after painting is much higher than when gelcoat is new. As a result this entrapment could lead to blistering of the paint film. To reduce the risk of paint film blistering it is recommended that 3 coats of Interprotect are applied to seal the gelcoat. Interprotect must be overcoated with Perfection Undercoat prior to topcoat application.

[/ QUOTE ] I suggest you consult the manufacturer's website for the paint you are using and follow their recommendations carefully

 

[jerryat]

Hi Vic,

>> I suggest you consult the manufacturer's website for the paint you are using and follow their recommendations carefully <<

I agree, although in the past I have had excellent support and advice by telephoning them to discuss anything vaguely out of the 'ordinary'. I think I'd ring them first and get info 'from the horse's mouth'!

 

[Refueler]

Dare I say that wood undercoat and then Exterior wall paint ? I have a 20ltr drum of ext. blue paint matched perfectly by local DIY emporium to Blakes Blue. It has stood test of my clambering around and all the drunken b**s that tend to enjoy partying on it ! At about 60p a litre - I thought I'd try it after talking with loads of classic boat people !

How much is "Marine" deck paint nowadays ? Of course the good old days of chlorinated rubber are long gone ?

 

[Pete7]

Inernational want £17 for 3/4 of a litre in the chandlers, bargin.

I have done three ribs with it now. First time on a new rib washed and scrubbed the whole deck 3 times with a course pan scrubber and cleaner. First coat of Int deck paint was thinned and second coat as normal. Over the next couple of years just touched up were divers weight belts and cylinders had scratched the deck. No problems paint always blended in and looked good a new.

Second boat didn't get the same preparation, paint scratched off, lesson learnt, so third boat got the full treatment again. Running hose, scrubber and Jif, although any cleaner would probably have done. Haven't tried a roller and always accepted the brush is only fit for the bin afterwards.

Pete

 

[Refueler]

17 smackers a 3/4 ltr ? Blimey - I'll stick to wall paint !

 

[ga1135]

I use Internationl Interdeck (Satin) Paint 2 years ago :
1. Removed non-slip mat (hard job)
2. Sand deck to bare gelcoat using sander machine
3. Wash deck with "Jet" - a kitchen cleaning material
4. Hose wash deck, let dry & sand with machine again
5. Wash dush with water & let dry
6. Use acetone to clean deck (patch by patch)
7. Brush Interdeck directly on deck without primer (patch by patch)
8. Brush another coat of Interdeck directly on top the next day

The paint sticked well & 2 years on, only some scratches made by bulleys & spin pole heads.

Recently, use "Jet" to clean deck, hose & let dry. Apply acetone and then brush 1 coat of Interdeck (Satin) on the deck (by patches). It sticks well and looks fine.

The boat is 28 years old

 

[Boathook]

My hulls were painted with alwgrip straight onto prepared and cleaned gel coat. The deck needs doing and I was going to do the same.

 

[VicS]

[ QUOTE ]
I'll stick to wall paint

[/ QUOTE ] Could have it pebbledashed. <span style="color:white"> ................. </span> /forums/images/graemlins/laugh.gif

I'm surprised the wall paint sticks also that it doesn't wear through quickly or absorb the dirt but there you go.

 

[Refueler]

[ QUOTE ]
[ QUOTE ]
I'll stick to wall paint

[/ QUOTE ] Could have it pebbledashed. <span style="color:white"> ................. </span> /forums/images/graemlins/laugh.gif

I'm surprised the wall paint sticks also that it doesn't wear through quickly or absorb the dirt but there you go.

[/ QUOTE ]

It appears so far to play as the Blakes deck paint did. Yes it stains easily, but so did the Blakes and previous boat with International.
It's soft for a number of days but hardens up over time..
I belt sanded old as best as possible and then overcoated with the wall-paint.

Even if it doesn't last as long as the "real" stuff - at the price and ease of coating - I don't mind touching up.

There's no granules to mix in for non-slip, it's finer and kinder to the feet ...

Classic boys seem to like it ! OK they are usually using it on top of canvas decks etc. - giving it even more wear resistance - but it works.

60p a litre !! Mixed to any colour you want. Works wonders on my wallet.

Here you see the cockpit bench in the old Blakes all stained and pitted even after sanding ! ... along side deck is the new wall-paint ...

Here's deck and cabin top ...