The manufacturers of memory foam produce a variety of comfort driven products for the residential and commercial customer. This form of molded urethane is well known as an excellent material for mattresses purchased by hotels and individual home owners or apartment renters as well as being used in other applications. In essence, memory foam is polyurethane that has been chemically altered in its molten state to create a material that has increased viscosity and density. Developed in 1966 for the benefit of aircraft cushions, the temperature sensitive material was found to take the shape of the object or person resting on it. After the weight is removed, the material slowly returns to its original shape.
This is just one of many molded urethane products that has found a special niche online casino in industry. Polyurethane molding is an important process because so much can be altered when the basic elements of polyurethane are in the molten state, before they are injected into molds to cool and harden to whatever degree they are meant to harden. Not only can additional chemicals be added as they are to create memory foam, but dyes can be mixed in to create an aesthetically pleasing affect with no secondary processes after. This can be a time saving and money saving endeavor.
Molded urethane has a couple downsides, which applies to the miraculous memory foam as well. First off, it is a thermoset and therefore can only be melted down and shaped once in its long lifespan, unlike thermoplastics which can be melted and shaped numerous times. However, thermoplastics cannot produce textures as unique as urethane’s memory foam. Secondly, all polyurethane materials are susceptible to fire, and can be combustible. When purchased for a transportation system such as an airplanes, cars or trains, the possible environments and how that will affect the memory foam must be considered.