Glasbelægning

Glasbelægning, often translated as glass coating or glass lining, refers to a specialized protective layer applied to various surfaces, most commonly metal. This coating is typically made of a type of glass that is fused to the substrate at high temperatures, creating a durable and chemically resistant barrier. The primary purpose of glasbelægning is to protect the underlying material from corrosion, erosion, and chemical attack, thereby extending its lifespan and maintaining the purity of any substances it comes into contact with.

The application process usually involves preparing the metal surface thoroughly, often by sandblasting, followed by the application of a powdered glass frit. This is then fired in a high-temperature kiln, causing the glass to melt, flow, and fuse with the metal. Multiple layers may be applied to achieve the desired thickness and properties. Glasbelægning is particularly valued in industries where aggressive chemicals or high temperatures are present, such as in the chemical processing, pharmaceutical, and food and beverage industries.

Common applications include reaction vessels, storage tanks, pipes, valves, and agitators. The smooth, non-porous surface of the glasbelægning also makes it easy to clean and prevents contamination, which is crucial in sensitive manufacturing processes. While offering excellent chemical resistance, glasbelægning can be susceptible to thermal shock and mechanical impact, requiring careful handling and maintenance.