China Polyacrylate Rubber (ACM) Prices Rise 13.96% in March 2026, as Spot Availability Decline

China’s polyacrylate rubber market strengthened in March as tighter domestic availability and firm intra-Asia demand supported seller offers. Environmental inspections in Jiangsu and power-load controls reduced spot availability early in the month, while trading activity was driven by front-loaded purchases from South Korea and India ahead of maintenance shutdowns. By late March, producers were passing through higher conversion costs linked to specialty inputs and prioritizing booked export cargoes, leaving prompt volumes lean and supporting Shanghai FOB offers. Demand dynamics remained strong, with automotive seal and gasket demand supported by passenger vehicle output growth and rising turbocharged and hybrid powertrain production, which increased requirements for high-temperature polyacrylate rubber gaskets. Sealing-system fabricators in major export markets also advanced purchases, reducing inventories at Shanghai export hubs. Meanwhile, European buyers remained cautious amid slower manufacturing growth. Supply-side factors included ample feedstock availability but longer lead times for peroxide curing agents, which increased per-unit costs. The near-term outlook for polyacrylate rubber indicates continued upward pressure in April, followed by a softer market tone later in the spring season.