DAEJEON, South Korea—Solvay and Hankook Tire and Technology Co. Ltd. are taking sustainability aims further, signing an agreement to co-develop circular silica for tire manufacturing. The companies signed the agreement Jan. 10 at the Hankook Technodome in Daejeon.
In a news release, Hankook noted that some of the most sustainable silicas—those derived from rice husk ash—face a number of challenges, particularly the availability of supply and cost of transport. The tire maker's partnership with Solvay gives it the chance to bring to market a more reliable and sustainable source of silica.
Likewise, the performance properties that silica brings to the table are essential, and Solvay said its products have demonstrated key characteristics such as low rolling resistance and treadwear resistance.
"Silica is essential for high-performance tires," An Nuyttens, president of Solvay's Silica and Special Chem business, said in a statement. "We are thrilled to collaborate with Hankook on circular silica solutions to address key industry challenges while offering superior performance and environmental benefits. Together, we aim to push the boundaries of sustainable innovation."
For Hankook, the partnership with Solvay underscores its commitment to more sustainable product offerings and manufacturing initiatives. Its commitment extends through previous partnerships established with SK Chemicals and Hyosung Advanced Materials last year and Kumho Petrochemical in 2023.
Hankook said it looks to gradually scale the circular silica for mass production. Sample evaluations are underway.
"This partnership (with Solvay) marks a significant milestone in our journey towards more sustainable tire manufacturing," Bonhee Ku, Hankook Tire president and chief technology officer, said in a statement. "By collaborating with Solvay, we can advance the development of sustainable materials that enhance tire performance while contributing to a circular economy and a greener future."