Rising penetration of new energy vehicles globally fuels surging demand for automotive safety glass, solar car roofs and lithium battery sealing materials. To fill market gaps, Anhui Liwei Chemical completed intelligent production line expansion for optical-grade PVB resin and new-energy-special EVA resin, lifting capacity by 30% to steadily supply auto parts manufacturers in Europe, the Middle East and North America. Optical-grade PVB serves as core raw material for interlayer films of automotive windshields and side windows, featuring light transmittance over 91% and anti-UV aging performance to tackle risks of gravel impact and high-temperature deformation during high-speed driving. Two differentiated EVA grades serve separate scenarios: high-crosslink PV EVA for encapsulation of car roof solar modules, low-melt-index flame-retardant EVA for lithium battery cell sealing and wire harness insulation. A full set of supporting automotive materials is launched simultaneously: low-odor VAE emulsion for nonwoven fabric adhesion of interior trims, formaldehyde-free PVAc emulsion for interior board lamination, and EVOH-EVA blended modified material for anti-corrosion barrier layers of fuel tanks. The five vinyl acetate polymers build a comprehensive automotive material portfolio, enabling clients to source glass, photovoltaic, interior and battery raw materials from one supplier instead of multiple vendors. Liwei’s new energy polymer products have been admitted into supply chains of multiple overseas Tier 1 auto component suppliers, with overseas automotive orders up 52% year-on-year in 2026.
