Cleaning and Sealing Coined Parts

压印件清洗与封护

type:tutorial · level:beginner · material:copper · material:brass · material:silver · variant:sulfide · variant:electro-chemical · variant:thermal-oxide · scale:jewellery · scale:decorative-object · equipment:hand-tools · stage:cleanup · stage:patina · stage:sealing

标签：电解清洗, 钝化, 封漆, 抗氧化

压印后先超声波+中性清洗剂去脱模剂与油污，纯水漂洗并烘干。铜/黄铜件浸入 1% BTA 钝化 1–2 min 抑制氧化，再喷透明清漆或电泳封护；银件可用硫化钾做旧后封蜡。封护前务必彻底干燥，否则膜下起泡、绿锈。

After coining, ultrasonic-clean in neutral detergent to remove release and oil, rinse in pure water and dry. Copper/brass: dip 1–2 min in 1% BTA to slow oxidation, then clear-lacquer or e-coat; silver may be sulfide-aged then wax-sealed. Dry fully before sealing or the film blisters and greens.