Profile: Sigma Sealings and Insulation Pvt. Ltd. is a manufacturer of asbestos boards such as millboard, beater addition jointing, non-asbestos beater jointing, cellulose jointing, insulation board and non asbestos insulation millboard. Our asbestos boards are used in the prevention of heat to minimize heat radiation and to provide the sealing effects. We are accredited with ISO 9001 certification.