DONIT® TESNIT® are high quality gasket material sheets, composed of aramid, glass, organic, inorganic or carbon fibers, NBR rubber as a binder and different fillers. Fiber gasket sheets with different chemical, thermal and mechanical resistance are made to endure at different loadings, even the most demanding conditions. Among wide range of gasket sheets in DONIT® TESNIT® product line you can find the perfect material to fulfil your needs.