Historical Beeswax-Rosin Sealing Recipes
传统蜂蜡-松香封护古方考证
标签：蜂蜡, 松香, 古方, 传统封护
欧洲与东亚传统封护方多以蜂蜡为基：《天工开物》相关记载与日本古修理谱用"蜡+松香+胡麻油"，欧洲 19 世纪铜器养护手册配方为蜂蜡 70 / 松香 20 / 松节油 10（质量比）。松香提高硬度与光泽但酸值高、易氧化发黄，现代修复界结论：松香占比 >25% 的老封护层黄变明显，宜用微晶蜡替换。考证价值在于理解历史器物表面层——修复时不盲目"除尽"旧蜡层，而先溶剂梯度试验（石油醚→乙醇）判明成分再决定保留策略。
Traditional sealers centre on beeswax: East Asian repair manuals use wax + rosin + sesame oil, while 19th-century European handbooks print beeswax 70 / rosin 20 / turpentine 10 by mass. Rosin adds hardness and gloss but its high acid number yellows—modern conservation replaces seals with >25% rosin in microcrystalline wax. The heritage value lies in reading old surfaces: gradient solvent testing (petroleum ether → ethanol) before stripping, rather than removing historic wax outright. ---