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sealing a dumas hydro boat kit

Old 09-24-2011, 09:28 AM
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thebossman
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Default sealing a dumas hydro boat kit

hello i have a wooden hydro boat that i am finishing..i could use alittle help on sealing and painting it ..all of the sanding is done.but now what i havent built one in about 25 years.i kinda forgot the next steps..please help. rick
Old 09-24-2011, 11:15 AM
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niteshadow
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Default RE: sealing a dumas hydro boat kit

I am building same boat dumas hydroplane kit #1314 u-1 36 inches long.
I have sealed all all inside and outside edges with carpenters grade white glue
mixed with epoxy.
i have krylon latex primer
cummins marine white
zinssers primer-sealer stain killer[bulls eye 123
now have to make choice???????????
what are you thoughts???
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Old 09-24-2011, 02:10 PM
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Hydro Junkie
 
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Default RE: sealing a dumas hydro boat kit

Okay guys, here's the way it works:
All of the wood inside the boat needs to be sealed with a FUEL PROOF coating. I use West Systems epoxy as it's basically fuel proof. Not sure why you would mix epoxy and white glue as you want the epoxy to soak into the wood. By soaking into the wood, the epoxy makes the mahogany stronger and more resistant to fuel and water and, trust me, water will get inside the hull. Next, sand ALL the frame tops to remove any epoxy/sealer from them and then coat the top of the frames on one side of the hull, as well as the bottom of the deck with epoxy. This will prevent dry joints and seal the deck at the same time. After both deck halves are installed and have cured, assemble the cowl as needed. Be sure to have all the framing sealed and the inside of the cowl parts coated with slow set epoxy, just like you did on the deck. This is epecially true on the Atlas as you won't be able to get inside the cockpit area with the skin installed. Next, recoat the inside of the engine cover as needed to seal any areas that didn't get a good seal coat the first time. If you haven't done so, install the tails with slow set epoxy and install the wing to hold the tails in place.
Now you can seal the outside of the boat, one section at a time. Again, I use slow cure West Systems to coat the hull. West Systems also has a hardener specifically for coating applications you can use as well. You have a choise on how you want to do this: brush on a thiin coat and let cure then sand smooth or brush on and when the epoxy starts to cure, scrape off any excess. At this point, you're ready to paint the hull. Niteshadow, have you tested your latex paint for fuel resistance? I know latex isn't that great for holding up if the surface gets scratched as it can peel off in sheets.
Old 09-25-2011, 04:06 AM
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blizard05
 
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Default RE: sealing a dumas hydro boat kit

Why would you mix a water based glue with epoxy??
Old 09-25-2011, 08:09 AM
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niteshadow
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Default RE: sealing a dumas hydro boat kit

mmm very interesting
thanks for the interest and the tips
water based glue and epoxy mix NOT GOOD IDEA
my boat is electric driven so not to wooried about fire?

thanks
niteshadow
Old 09-25-2011, 08:15 AM
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niteshadow
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Default RE: sealing a dumas hydro boat kit

do u have any pictures of your boat?
what are you using for power
etc>
thanks
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Old 09-25-2011, 03:02 PM
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Hydro Junkie
 
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Default RE: sealing a dumas hydro boat kit

Niteshadow, who's boat are you refering to about pictures?

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