Niche Polymer LLC is a custom compounder and toll compounder of thermoplastic engineering resins located in Ravenswood, WV. W ... e pride ourselves on providing a wide array of proprietary thermoplastic compounds such as nylon, polypropylene, polycarbonate, polystyrene, ABS and PCABS. Niche is backed by a 400,000 sq/ft facility which has been in service for more than 30 years. Additionally with over 100 years of combined thermoplastics and compounding experience from the management team, Niche is dedicated to fulfill its customers’ resin and tolling process requirements. read more