Coatings giant PPG is teaming up to help solve one of a spray paint shops enduring hazardous waste problems.
PPG with SAIC General Motors has launched a cleaning solvent recycling project that could enable the reuse of up to 80 per cent of the waste solvents.
The project creates a circular economy model for solvents used in automotive painting, enabling the reuse of up to 80% by weight of waste solvents collected in OEM paint shops.
It will utilise advanced distillation and purification technology to separate valuable components from waste solvents, repurposing them as raw materials for coatings or as reclaimed solvents.
PPG says the closed-loop process offers a more sustainable alternative to traditional solvent disposal methods, which typically involve incineration and result in significant CO2 emissions.
It also drastically reduces the volume of hazardous waste requiring disposal.
PPG and SAIC General Motors will recycle more than 430 tons of waste solvents annually, enhancing resource efficiency and environmental protection in the automotive sector.
The technology is already being recognised, winning the the 2025 RESPONSIBLE CARE® Sustainability Initiative Award from the Association of International Chemical Manufacturers (AICM) in China.
PPG, Automotive Coatings Asia product engineering director Tony Gu says it is only one way PPG is reaffirming its sustainability credentials.
“PPG continues to lead the industry with innovations such as precision application, 4-Wet sealants process technology, expanded bake electrocoats and heavy-metal free solutions,” Gu says.
“These technologies help automakers reduce carbon emissions, minimise waste and improve efficiency while meeting stringent environmental standards. By collaborating with partners across the value chain. PPG is accelerating the transition to a circular economy, driving the future of mobility toward greater sustainability.”
The Shanghai based SAIC Motors which s a joint venture with the US based GM is also proud of the initiative.
“At SAIC General Motors, we’re committed to working hand-in-hand with our supplier partners to drive innovation in sustainable solutions,” says Xu Xinghu, SGM painting process engineering manager.
“Through collaboration, we aim to unlock new possibilities and make meaningful progress toward our shared environmental goals.”