Woven roving glass fabrics of KROSGLASS S.A. are produced on weaving looms from rovings ER 3003 and ER 3003 B. These rovings are made of glass fibers of alkali-free boron-aluminium-silica glass of type E (contents of alkali metal oxides less than 1%). The fabrics are made of direct roving having filament diameter 11 ÷ 22 µm (depending on linear mass of the roving used). Rovings with chemical active vinyl-silane or metacrylosilane coating are used in fabric production, thus enabling a direct application of fabrics in production of laminates (no additional operations of surface finishing off are required), and good polymer-to-glass adhesion is ensured.
