UV　curable　coatings　have　been　widely　used　for　their　advantages　of　environmental　protection　and　high　curing　efficiency.　However,　there　are　also　some　problems　in　the　use　of　UV　curable　coatings,　such　as　poor　light　transmission　of　colored　coatings,　shadow　parts　are　difficult　to　accept　light　and　can　not　be　cured.　In　order　to　solve　the　problems　existing　in　the　curing　process　of　UV　curable　coatings,　the　establishment　of　UV/　moisture　dual　curing　system　can　effectively　solve　these　problems.　Using　castor　oil　(CO),　polytetramethylene　ether　glycol　(PTMEG),　isophorone　diisocyanate　(IPDI),　hydroxyethyl　methacrylate　(HEMA)　and　tetrahydrofuran　acrylate　(THFA)　as　raw　materials,　a　series　of　polyurethane　prepolymers　were　synthesized　by　structural　design　and　a　series　of　UV/　moisture　dual-curable　coatings　were　prepared.　The　experimental　verification,　UV/　moisture　dual　curing　system　coating,　not　only　solves　the　problem　of　traditional　UV　coating　curing,　and　has　better　performance　than　UV　coating,　coating　curing　dual　curing　coating　has　excellent　heat　resistance　and　mechanical　strength,　tensile　strength　up　to　8.4　MPa,　small　volume　shrinkage,　excellent　weather　resistance.　This　is　a　curing　strategy　for　UV　coatings　that　cannot　fully　accept　UV　light,　and　provides　a　new　idea　for　the　preparation　of　new　environmentally　friendly　coatings　by　bio-based　materials.　©　2025　Elsevier　Ltd