Simax is manufactured by Kavalier, a company that has been the leading European producer of borosilicate glass for more than 175 years. By its chemical composition and properties Simax glass ranks among the types of glass of the group of "clear hard borosilicate glass 3.3", which excel in a high heat and chemical resistance and which are defined by international ČSN ISO 3585 Standard. It complies to the full with the properties prescribed by these standards.Simax glass is very much environmentally-friendly and in terms of environmental protection it is absolutely faultless.