dibutyltin mono(2-ethylhexyl) maleate: a comprehensive overview for weather-resistant pvc siding applications abstract: dibutyltin mono(2-ethylhexyl) maleate (dbm-ehm) is a widely used organotin stabilizer in the production of rigid polyvinyl chloride (pvc) products, particularly in weather-resistant pvc siding. this article provides a comprehensive overview of dbm-ehm, covering its chemical properties, mechanism of action in pvc stabilization, performance...