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<blockquote data-quote="req" data-source="post: 722305" data-attributes="member: 555713">yea dude. it makes this really hard film over the outside, and they are tiny bubbles all &#039;glued&#039; together. how do you think it works as an INSULATOR if its &#039;full of holes&#039;porus means that it is just full of holes. for example, a rock with holes is porus. a sponge is porus.but this stuff is like that white foam. its not porus, it just expands its volume to use the same mass that it has, but it takes up more volume. thats why the stuff is so great.give it a try, take a soda bottle, fill it half way with water. then seal the top of the bottle with a glob of this stuff (maybe put it on a tissue or somthing, and then squish it into the top of&nbsp; the hole so it stays in place)then let it dry, and flip the bottle over. let me know if it leaks... i highly doubt that it will //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gifif it does, that means that the water is getting through it somehow, if not, it is infact a sealed-cell foam - like styrofoam. if all esle fails, just get some of that pink styrofoam from the hardware store for $5 and cut .5cubic feet off and use some glue and stick it to the wall.finito.</blockquote>

[QUOTE="req, post: 722305, member: 555713"] yea dude. it makes this really hard film over the outside, and they are tiny bubbles all 'glued' together. how do you think it works as an INSULATOR if its 'full of holes' porus means that it is just full of holes. for example, a rock with holes is porus. a sponge is porus. but this stuff is like that white foam. its not porus, it just expands its volume to use the same mass that it has, but it takes up more volume. thats why the stuff is so great. give it a try, take a soda bottle, fill it half way with water. then seal the top of the bottle with a glob of this stuff (maybe put it on a tissue or somthing, and then squish it into the top of the hole so it stays in place) then let it dry, and flip the bottle over. let me know if it leaks... i highly doubt that it will [IMG]//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif[/IMG] if it does, that means that the water is getting through it somehow, if not, it is infact a sealed-cell foam - like styrofoam. if all esle fails, just get some of that pink styrofoam from the hardware store for $5 and cut .5cubic feet off and use some glue and stick it to the wall. finito. [/QUOTE]

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