Sealing & Anti-Oxidation Coating

铸件封护与抗氧化涂层

type:recipe · level:beginner · material:copper · material:bronze · variant:thermal-oxide · variant:electro-chemical · scale:decorative-object · equipment:hand-tools · stage:sealing

标签：封护, 涂层, 抗氧化, 蜡, 清漆

清理抛光后的铜件易氧化变色，需封护。可选微晶蜡薄涂并软布抛光，或喷涂丙烯酸清漆、聚氨酯罩光。户外件建议先化学钝化（如苯并三氮唑 BTA 溶液）再上蜡，延缓铜绿生成。涂层前表面必须彻底脱脂干燥，否则附着力差、易脱落。

Cleaned and polished copper tarnishes easily and needs sealing. Apply a thin microcrystalline wax and buff, or spray acrylic lacquer / polyurethane. For outdoor pieces, chemically passivate first (e.g. benzotriazole BTA solution) then wax to slow patina. Degrease and dry the surface thoroughly beforehand, or the coating will fail to adhere and flake off.