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You don't push air into Styrofoam.

Styrofoam is "foamed" using a liquid blowing agent that is mixed into the liquid styrene resin before molding, this liquid blowing agent then evaporates forming bubbles in the styrene.

This blowing agent used to be a freon, but as these can damage the ozone layer they have switched to using HCFC or HFC blowing agents.

The bubbles in styrofoam are filled with the gaseous form of the blowing agent, not air!

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9y ago

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