... seal, medical seal, etc. Description of Solvent Resistant FLS Rubber Seals For Glass: 1. Materials: FLS, also can be NR, HNBR, Buna ... resistant, oil resistant, solvent resistant, raw oid proof, ozone resistant, aging resistant, good insulation, anti-toxic, good air-permeable, oxidation resistant, oil proof, chemical resistant, anti-corrosion, flame resistant ...