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Old Nov 03, 2015, 03:38 PM
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Making some lightweight floats.

I have a vintage model which I've a mind to put on the water.

It has a glow engine, but I'll swap that out for electric ... 'cos of the noise-sensitive site from which I intend to fly.

But, I need to make some floats.

I fancy using some blue foam, with a couple of wooden hardpoints let in, to facilitate the mounting. However, I'd like to apply a finish to the foam, such that it can be painted.

How do you chaps approach the problem of covering or sealing blue foam? Looking for simple and light of weight.
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Old Nov 03, 2015, 04:09 PM
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# Scale is a way of life
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Light cloth and water based polyurethane or epoxy.

look here for how I made these if you like

http://www.rcuniverse.com/forum/seap...er-set-up.html
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Old Nov 03, 2015, 04:22 PM
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The polyurethane stuff didn't seem to work too well.

I could get some thin epoxy ... I have loads of cloth, somewhere.

That old-fashioned float design is exactly what I'm aiming to use on my own model.
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Old Nov 04, 2015, 06:09 AM
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# Scale is a way of life
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That post in the thread is misleading,, It worked OK,, just not with the latex paint over it, if I had given it more time to full cure, then the latex paint probably would have bonded correctly. Epoxy dries/cures faster for sure.

good luck
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Old Nov 22, 2015, 07:17 PM
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Bogbeagle: scale_only is right... Water based polyurethane over glass cloth works wonderfully. It doesn't cure quite as hard as Epoxy, but very close. And it cleans up with water, and the fumes don't p!$$ off the wife lol. I have the same thing on the float/hulls of all my waterplanes... Food for thought
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