Various　of　plant　oil　pitches　which　were　available　from　the　waste　of　the　distillation　factory　were　used　to　prepare　the　high-intensity　binders　for　casting.　They　were　treated　by　polyester　waste　and　processed　by　several　technics　such　as　esterifying.　The　test　for　properties　showed　the　binders　could　substitute　for　tung　oil　binder　to　affix　the　class　I　mold　and　core.　Besides,　the　treated　binders　are　cheaper　because　of　their　rich　source　and　simple　technics.