Polyurethane foam

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Expanding Foam Art, Sculpture Materials, Magical Stuff, Creaky Floors, Foam Projects, Foam Props, Styrofoam Crafts, Expanding Foam, Foam Art

Expanding foam is magical stuff for sealing gaps and insulating hard-to-reach areas. But it has unexpected uses too—it can protect fragile items and even replace concrete for setting posts. Here’s a rundown of various products and what they can do. Shown below is the most popular type of foam: single-component (mostly polyurethane) foam that you apply with a straw-type dispenser. These can be messy, but they work well and are easy to use. Just shake the can, insert the straw in the gap and…

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How Is Polyurethane Foam Made? How To Make Foam, Foam Chair, Fair Stand, Object Sculpture, Foam Art, Soft Chair, Diy Furniture Hacks, Digital Fabrication, Porous Materials

Polyurethane foam is one of the four basic types of products that can be made from raw, liquid polyurethane. They are comprised of two chemicals which, when mixed and heated, form liquid polyurethane prior to being further processed. These chemicals are polyol, a type of complex alcohol, and diisocyanate, a petroleum byproduct that reacts strongly with alcohol. By combining the two, a stable long-chain molecule is formed. It's a polymer, or plastic, known as urethane.

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