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Approximate Time: 20 minutes
By Marie from West Dundee, IL
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I am making a canoe in math class. It must float. Should I use paper mache or foam?
Alvin LI from Srircha, Thailand
Paper mache will soak up water and disintegrate. Use foam!
I would think styro foam would work the best.
doesn't paper mache get wet like paper?
doesn't foam float?
hmmm... what do you think?
I think it would depend on if it has to hold your body weight.
Foam floats, but does not hold alot of weight. Paper mache would hold more weight, if you do it thick, and after it is compleatly dry, coat it with a poylerethene, or wax, tar, or any waterproof finish. I would coat it twice, inside and out.
You can paint it with an exterior oil base house paint also to get it waterproof (first layer), and to add color of your choice. Make the second layer out of a transparent sealer, once the paint is compleatly dry.
Good Luck! Send us a pic when your done!
use used foam trays from fruit or pastries. Cut pattern, there should be 2 sides, with 1 seam. Hot glue the 2 sides together, bow, keel and stern . Take a small strip or two and form an upside down U and make seats. You can also cut out oars and by hot gluing two oar patterns together make them sturdy.