Glass roving

Fibre or filament formed from glass by drawing from molten glass mass through dies using mechanical devices, treated with special-purpose lubricants and winding the fibre onto a spool. Depending on the purpose of the lubricants are divided into two types: technological (or textile), which protect the yarn from abrasion and destruction during its processing into textile products (fabrics, geogrids, stitching material), and hydrophobic-adhesion (direct), which improve the adhesion of the glass fibre surface with polymers in composite materials and fibreglass plastics. Fibres can be treated with direct lubricants both in the process of their production and during thermochemical removal of the textile lubricant from the glass fibre surface.