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foam for a cooler
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<blockquote data-quote="jigngrub" data-source="post: 281332" data-attributes="member: 6657"><p>Use the 2 or 3" EPS sheet foam.</p><p></p><p>Use 3 layers of woven fiberglass cloth and epoxy resin to hold it together and make it watertight.</p><p></p><p>Sand and paint or gel coat it.</p><p></p><p></p><p></p><p>Some of the spray foam in a can is closed cell/waterproof, Great Stuff Pond and Stone is the only one I know of. The rest have to be painted to be waterproof.</p><p></p><p>You can buy the closed 2 part urethane expanding foam online and mix up your own for cheaper than the cans of Great Stuff Pond and Stone. Painting any expanding foam is a good idea to make it completly waterproof.</p></blockquote><p></p>
[QUOTE="jigngrub, post: 281332, member: 6657"] Use the 2 or 3" EPS sheet foam. Use 3 layers of woven fiberglass cloth and epoxy resin to hold it together and make it watertight. Sand and paint or gel coat it. Some of the spray foam in a can is closed cell/waterproof, Great Stuff Pond and Stone is the only one I know of. The rest have to be painted to be waterproof. You can buy the closed 2 part urethane expanding foam online and mix up your own for cheaper than the cans of Great Stuff Pond and Stone. Painting any expanding foam is a good idea to make it completly waterproof. [/QUOTE]
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