Starflex Sealing India Pvt. Ltd. Offers Sheet Sealing Material with 64% 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 64% ASTM Recovery is an NBR based, asbestos-free sheet sealing material, reinforced with carbon and synthetic fibres. The Sheet Sealing Material with 64% ASTM Recovery is suitable for use in a wide range of industrial applications including oils, fuels, steam, water and dilutes acids.