Liquiseal PSPG Pouring grade polysulphide, especially used to fill gaps between concrete slabs in roads and airport tarmacs. TDS Liquiseal PSGG Gun grade polysulphide sealants used for filling grooves in civil structures. TDS Head Office W360, North Main Road Anna Nagar West, Chennai 600 101, India. Telephones Board: +91 44 2615 6000 Sales: +91 44 2615 6000 Extn 64 Email Us iwl@iwl.in