Polyurethane Foam

Written by Patricia Skinner
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Polyurethane foam is made by mixing two chemicals. The resulting foam varies in texture and properties according to the exact chemicals used and their proportions. First used in 1957, there is hardly an industry today that does not make use of polyurethane foam in one way or another. Every home has several items that are made from polyurethane foam.

Day by day, more uses are added to the list of applications for polyurethane foam. It has, over the years, largely replaced latex foam in the furniture and marine industries largely due to it's slightly different qualities and the fact that it costs a quarter of the price of latex products. It has replaced other materials in the insulation industry because it is quick, easy and very light to apply. Aside from that it is far less harmful to the atmosphere than some other insulation materials. It uses no CFCs and does not contain formaldehyde.

Machinery for Polyurethane Foam

You can buy the machinery needed to produce polyurethane foam for a wide range of applications. Whether you want to insulate, protect, or separate polyurethane foam is a great choice. Spray foam guns come in different sizes according to what you intend to use them for. There are very small guns for domestic use and huge ones for industrial purposes.

The foam is produced by hooking the gun up to two barrels containing the required chemical. This should be sprayed in a controlled manner. Experts say that pulling hard on the trigger should be avoided. To begin with the operator has less control over where the foam is directed this way, and in addition the foam may not have time to mix properly and thus be "flat." The best way to spray foam is by pulling back on a trigger to no more than a quarter of its distance.

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