Expanding Foam

Written by Patricia Skinner
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Expanding foam, or polyurethane foam to give its real name, is truly an invention that has made hundreds of building, construction and marine projects a thousand times easier. While it's possible to list the uses to which it is already being put, new ideas for expanding foam are coming to light all the time. Polyurethane foam comes in a variety of different densities, each one being suitable for a slightly different range of uses. Generally though, the higher the density, the more useful foam is as it becomes more resilient and therefore more cushioned at higher densities.

Polyurethane foam is commonly called expanding foam because it expands tremendously, up to two hundred times its original size, when two separate components are mixed. This makes it all the more valuable to many companies because it takes no space to store, as opposed to more traditional packing and filling materials. All a company or individual needs do to have expanding foam on hand whenever they need it is to acquire a spray foam gun in a size that suits their requirements.

Uses of Expanding Foam

Boating enthusiasts love expanding foam. It has so many marine uses, and can be put in place and cured in only minutes. Spraying foam into the stringer system of your boat won't only help to keep it afloat, it will also add considerable strength to the hull.

Spray foam can also be used for any type of insulation job, whether it be cavity wall or roof insulation. Because it is sprayed on, construction workers find that spray foam is ideal because thickness can be controlled quite easily. In fact, wherever needed, spray foam can be applied in thin layers for added strength and control over shaping, for example.

Because it has great insulating properties, polyurethane foam is just what you need to insulate your cold room or larder. It will keep it beautifully cold, even in the heat of summer. Expanding foam is commonly used to insulate refrigerator trucks and the holds of marine vessels, for example. It is also used in refrigeration.


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