What is the material of k9 glass? What is the difference between k9 glass and ultra clear glass?
- What is the material of k9 glass?
K9 glass is manufactured from K9 material through a series of processes, and then undergoes sophisticated cutting and polishing techniques. It represents a more costly option within the field of artificial crystals, offering superior transmittance, refraction effects, hardness and texture compared to resin materials, making it a valuable alternative to the rare and expensive natural crystals.
Nevertheless, K9 can only be classified as a type of glass, rather than a crystal, as the first definition of an artificial crystal in the European Union is a PBO content of more than 24%. K9 glass not only lacks PBO, but also fails to attain the refractive index of leaded glass.
What is the difference between k9 glass and ultra clear glass?
Both K9 glass and ultra-clear glass fall into the category of glass, but their production processes are distinct. Additionally, the raw materials used in each production are also different.
K9 glass can generally refer to glass products manufactured from K9 material. K9 material, also known as lead crystal glass, is constituted of a combination of PbO and SiO₂ (silicon dioxide, the principal component of sand). If the PbO content exceeds 24%, the material is typically designated as K9 crystal. Conversely, if the PbO content is below 24%, the material is not classified as K9 crystal and can only be called as K9 glass.
Ultra-white glass is a kind of glass with ultra-transparency and low-iron content, also known as low-iron glass and high-transparent glass. It is a type of high-quality, multi-functional, and advanced glass, offering a light transmittance of up to 91.5%. With the characteristics of high clarity and exceptional aesthetic appeal, it has been known as the “crystal prince” of glass family. It is made of quartz ore powder filtered to remove iron elements, soda ash, crushed ultra-white float glass waste, and other additives. These components are melted into a glass liquid through high-temperature sintering, and subsequently produced using a tin tank and molding production line, with a core requirement of very low iron content. The production of ultra-white glass is subject to a number of rigorous specifications, including the regulation of the iron oxide content that causes glass colouring (blue, green). The visible light transmittance must exceed 91.5% (3mm), while the iron oxide (Fe2O3) content is limited to a maximum of 0.015% (ordinary float glass contains approximately 0.1%, which is 10 times higher).
