Starflex Sealing India Pvt. Ltd. Offers Sheet Sealing Material with 63% ASTM Recovery. Starflex Sealing India Pvt. Ltd. Manufactures Spiral Wound Gaskets, Sheet based and cut gaskets, Tooth Profile Gaskets, Jacketed Gaskets, Envelope Gaskets, and Gland Packings. The Sheet Sealing Material with 63% ASTM Recovery is a superior performance aramid or synthetic fibre sheet sealing material bound with a high quality Nitrile rubber. The Sheet Sealing Material is suitable for use in a wide range of industrial applications including oils, fuels, steam, and water and dilute acid.