A Brief Overview of Polyurea
Polyurea is polyurethane foam made from a rubber tree. This foam has many cosmetic benefits. Unlike other foams polyurethane is water-resistant, and it is also resistant to most solvents. It is also odorless, latex free, and nontoxic. It is also relatively inexpensive. It is also considered to be a more advanced product then Vistabelle, itself another popular plastic injection polymer.
The polyurea industry is huge and growing. It is the top choice for bed liners, mattress coverings, upholstery, flooring, and a variety of other products. It is mainly developed in the United States, Europe, Australia, and Japan. It is usually an anti-fungal polyurethane liquid. Polyurea is usually a white or off-white powdery substance, but can be colored depending on the type used in a particular product. It comes in a variety of consistency mixtures.
All polyurea products have physical properties that make them resistant to abrasion. When they are dry they are very hard, because they are made of crystalline particles. When they are wet they become moist but still hard, because the liquid is mixed with a solvent. When they are sprayed or applied on a surface, the physical properties make them adhere to the surface.
Most polyurethane products have a SPF (Spray Polyurethane Finish). They have uv protection above approximately two hundred and twenty feet, so they will not harm individuals who are exposed to them. UVC is also a well-known problem with polyurethane coatings. UVB rays are one of the main causes of skin cancer, though it is unlikely that this is caused by any polyurethane coatings. As far as the physical properties are concerned, polyurethane urethane coatings are stiff, heat and water resistant. This is one reason that they are often used for flooring applications.
As far as the chemical properties of polyurea, there are no major differences from other polyurethane coatings. These include strength, solubility, thermal conductivity, dimensional stability, pH resistance, sound absorption, and elasticity. Other components in polyurea are also found in other polyurethane coatings, such as resins, solvents and additives. The tensile strength of polyurethane is somewhere between that of wood and fiberglass.
There are some uv resistant polyureas on the market, which are made up of aromatic polyureas. The aromatic polyurea does not have the solvents or additives that affect the solubility, though it does have uv resistant additives that change the molecular structure of the polymer to make it more impervious to UV light. The molecular structure of aromatic polyureas is similar to that of uv-coated polyurethane. Thus, it may be useful as an organic sunscreen, though there is no regulatory requirement for food to contain them.
