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About to repaint the hull and bum - what do you use?


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Every two years I paint the bottom and sides of my wide-beam narrow boat . Last time I painted the bits which get wet using Rylard Rytex Bodied Bituminous Coating.

 

Recently I keep seeing on youtube boaters making videos about using 2 pack poly paint. Should I be using this first, and then top up with the Rytex? 

 

Just trying to get the hull and bum to last as long as possible. On the Leeds & Liverpool canal which isn't very deep. :(

 

Thanks in advance. 

 

PS: I'm actually required to paint this often (MCA friends insist - LOL). 

 

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1 hour ago, canalboat77 said:

Recently I keep seeing on youtube boaters making videos about using 2 pack poly paint. Should I be using this first, and then top up with the Rytex? 

If you 2 pack, then overcoat with Rytex or other bitumen, you won't be able to 2 pack again without cleaning off all the bitumen.  Better to stick to one or the other.

  • Greenie 1
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The only way to use 2-pack on a previously bitumened boat is to have the hull grit blasted back to bare metal.  All other methods will fail in short order, and be a complete waste of money.

 

Bod

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Before you apply two-pack, you need to get the boat shot blasted. Otherwise your expensive paint is relying on the bond betwixt steel and original bitumen.  That is not a Good Thing.

 

After blasting and two pack within 4 hours, you can have a look at it every 4-5 years and touch up any mechanically damaged parts after a good pressure wash.

 

N.

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Two pack is better than bitumen in that it hopefully lasts longer and is the product of choice but if you haul your boat out every couple of years then I would not worry too much about using bitumen. Anyway most new boats leave the builders with a thin and cosmetic coat of black something or other that needs removing before using epoxy.  (Not impressed with most builders!)

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