White_widow
technology theorist
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- Oct 25, 2010
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Thank you, I appreciate that. Have you taken a chemistry course? It just depends on the surrounding material and how well it is mixed. Polyeurethane is a good example. It becomes an incredibly hard foam. It generates it's own foam. What we will do is mix our material with water and laundry detergent. This will create pockets in the polymer that will expand it. It might be better to use something other than water, but we want something that flows well, and our polymer is relatively strong that will dry as soon as it loses the acetone.