Satyen Polymers manufactures Button Grade Unsaturated Polyester Resin. Satyen Polymers manufactures and supplies Unsaturated Polyester Resin [UPR]. The Button Grade Unsaturated Polyester Resin is the especially formulated or branded trade mark product unsaturated polyester resin. These resins are tailor make to meet the diverse needs of GRP or FRP industry and meeting the requirements of customers` interest of improved efficiency and superior performance of finished product. The general purpose polyester resin performs best if the laminate is completely post cured. The qualities of catalyst and accelerator can be adjusted to get a shorter or longer gel time.