What is polyurethane foam?

polyurethane foam indicates a number of different types of foam consisting of polymers made of molecular chains bound together by urethan bonds. It can be flexible or rigid, but has a low density. Flexible polyurethane foam is most often used in bed linen and upholstery, while stricter variety is used for thermal insulation and in car dashboard. This is, for example, the way in which furniture pillows are produced. Some materials can replace this application of polyurethane foams such as polyester fiber or steel springs. However, the polyester fiber does not turn almost like foam after compression. Steel springs recover well, but can be noisy when they wear. They also require some form of suspension between them and the user. Seats, armrests and headrests are often made of semi -transit to the variety of this material. In the case of seats, polyurethane foam is formed in the form and then removed and upholstered.

Polyurethane foam has many relevant applications in construction. Many odd and detailed shapes such as sculptures and arched ceilings are much easier to make with foam than with wood. Some manufacturers sell special solid foam, which are used to replace wood in carved brands and three -dimensional topographic models. It is also used as domestic insulation, solid hulls, tennis missiles and even surfs.

polyurethane foam can also be made into a mold that is easy to spray and then expands quickly when it dries. It can be adapted to have many different physical properties, depending on the desired use. In this form it can be used as an industrial insulation and also as a roof material, that is waterproof and long -term. It is often applied to ships, ships and floating docks. In the form with a higher density, it is also used to increase the structural force of the aircraft wings.

Spray polyurethan foam is one of the most versatile building materials. It is also environmentally friendly in that it does not contain or issue any chemicals that are harmful to the environment or for general air quality. Nevertheless, attention should be paid when using foam, because the vapors it issues may be dangerous if they are not properly ventilated.