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Polyurethane Foam System - Chemical Demonstration Kit

Polyurethane Foam System -
Chemical Demonstration Kit, C0335
Catalog Number
Polyurethane Foam System - Chemical Demonstration Kit
Product Description

By: The Flinn Staff

Try this amazing demonstration! Simply mix two viscous liquids together and watch as the mixture expands to about 30 times its original volume. Liquid "A" is a polyether polyol. Liquid "B" is a polyfunctional isocyanate. The result is a hardened, lightweight polyurethane foam. Teacher Demonstration Notes included. Enough materials are included to perform this demonstration seven times.

Concepts: Polymers, catalysis.
Time Required: 10 minutes
Chemicals Provided: Polyurethane foam system, Parts A and B.

HAZARD ALERT: Solution "A" contains a polyether polyol, a tertiary amine and a silicone surfactant. Provide adequate ventilation and wear protective clothing. Solution "B" contains a polyfunctional diisocyanate. Provide adequate ventilation and avoid any body contact. Wear chemical splash goggles, chemical gloves, apron and mix under a hood or with adequate ventilation.
Storage: Liquid "A" Organic #2, Liquid "B" Organic #5
Disposal: Mix, form foam then #26a.
Shelf Life: Do not store longer than three years.
Soluble: Acetone and some other organic solvents.
Color: Solution A: Yellow/amber, Solution B: Brown/amber
Odor: Solution A: Rubber-like, Solution B: None


Flinn Catalog/Reference Manual Page 387
Flinn Middle School Catalog/Reference Manual Page 68
P.O. Box 219, Batavia, IL60510



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