ST3542

Buy standard foam rubber ST3542

One of the most common materials for furniture production is standard foam rubber with a density of 35. This material is designated ST, and the number in the marking indicates that its apparent density is 35 kg/m3. The structure of polyurethane foam (it is this chemical compound that foam rubber is made of) is heterogeneous. It is a frozen polymer mass saturated with air bubbles. Therefore, when determining density, the term “apparent” is used, because gases and solids have different values that determine the ratio of mass to volume. In addition, due to the heterogeneity of the structure and different sizes of bubbles, the density of some areas will differ sharply from others.

For convenience of measurements, the averaged parameter is taken. The rigidity of standard foam rubber is 3.5 kPa, but in order to tear it, a force of 120 kPa must be applied. The elasticity of the material is such that before it cannot withstand the pulling force, its length can increase by 2.5 - 3 times.

Standard foam rubber, that is, not having increased rigidity, “memory” and other improved characteristics, is used primarily in the manufacture of backs, armrests and headrests of sofas, armchairs, and soft corners. In Europe it has found use mainly as packaging and damping material. In Russia, it is also used to create office furniture designed for people whose weight is about 60-80 kg.

The scope of application is explained by the good performance characteristics of the material. In addition to its elasticity and elasticity, it weighs little, and this plays a big role in the manufacture of furniture and in the transportation of large and fragile objects. The service life of ST 35 polyurethane is about 10 years. The polymers used to create foam rubber repel moisture without accumulating it, so after getting wet it dries quickly. The air permeability of the material is ensured by the open-porous structure.

Other characteristics that deserve attention include resistance to many chemical compounds, in particular to surfactants used in the production of detergents. The temperature range that foamed polyurethane foam ST 35 can withstand varies from -40 to +70 °C. Thus, it can well be used to create furniture that will decorate, for example, an unheated veranda or gazebo in the country.

The production enterprise "HimPlastService" gives its customers the opportunity to purchase sheets, blocks and crumbs of polyurethane foam of all brands that are most in demand in the national economy.