|Address||P.O. Box 219 Batavia, IL 60510|
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All students are captivated by the amazing demonstration in Polyurethane Foam: Physical and Chemical Changes—ChemTopic™ Lab Activity! Simply mix two liquids together, and watch as the mixture expands to about 30 times its original volume, resulting in a rigid yet lightweight polyurethane foam. Available as part of the Polymers—ChemTopic™ Labs digital collection. Click the Price link for digital collection pricing.