Requirements for sealants for double -glazed windows and their varieties
Modern production of double -glazed windows use, as a rule, two -stage sealing technology. As primary sealant, polyisobulene sealant is usually used, which has low vapor permeability. As secondary sealants, according to GOST 24866-99 (interstate standard for double-glazed windows adopted in Ukraine, Russia and a number of other countries), polysulfide, polyurethane or silicone sealants can be used. The largest manufacturer of sealants and thermal insulation materials in the German CJSC, along with sealants of general-intention and production of sandwich panels, also produces a two-component polysulfide sealant for double-glazed windows Vikar.
Hermast production base is equipped with modern technological equipment that allows for more than 5 million. high -quality sealant liters per year. In 2001, Hermast received a certificate of quality management system ISO 9001: 2000, which is an assessment of the achieved level of stability of production quality. The Hermast laboratory not only ensures the control of the production of sealants, but also conducts serious work to improve the products and implement new products.