Naptha Resins and Chemicals Pvt Limited manufacture Isophthalate and Terephthalate Resins. Naptha Resins and Chemicals Pvt Limited also manufacture Orpthalate Resins, Bishpenol Fumarate, Flame Retardant Resins, Phenolic Resins,Vinyl Esters etc. The Isophthalate and Terephthalate Resins are used in chemical environments where high corrision resistance, excellent mechanical properties and optimal elongation are desired at elevated temperatures. The High Corrosion Resistant Vinyl Esters are available in six varieties, including a resin having a shelf life of six months when stored at a constant temperature of 25C.