Water-soluble anti-tarnish agent for copper with heat resistance. It inhibits discoloration of copper materials when heated (160-220℃). Environmentally friendly product containing no inorganic components.
Benefits
・Suppresses discoloration when copper materials are heated. (160~220℃)
・Water-soluble, non-chrome, non-inorganic, environmentally friendly.
・Does not adversely affect the contact resistance of copper surfaces.
・It can be treated only by dipping at room temperature for a short time.
How to Use
・Dilution: 0.1 to 10 % (aqueous solution)
・Temperature: 15 to 40°C
・Time: 5 seconds to 1 minute
・Water rinse: None
Application
・Copper products, copper foil, copper wires.
・Treated rolled copper foil, electro-deposited copper foils (circuit boards, electrode materials for lithium-ion batteries, etc.)
・Substitute for chromium treatment of copper foil.
・It suppresses discoloration during heating in after-treatment such as reflow and solder treatment.
・Further after-treatment of chromate film strengthens the effect of preventing discoloration during heating.
Properties
Colorless liquid pH: 3-4 (undiluted)
Packing
20 kg