Starflex Sealing India Pvt. Ltd. Offers Asbestos-Free Sheet Sealing Material. 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 Asbestos-Free Sheet Sealing Material is a Nitrile rubber based sheet sealing material reinforced with cellulose and glass fibres. The Asbestos-Free Sheet Sealing Material is recommended for low temperature, medium pressure applications. The Asbestos-Free Sheet Sealing Material is particularly suitable for sealing hot and cold water and oils.