Heat-resistant copper discoloration inhibitor.
This discoloration inhibitor inhibits copper discoloration during heat processing treatment of copper products used for electronic components, etc. It has no adverse effect on contact electrical resistance.
Benefits
・Provides anti-tarnish effect on copper even at high temperatures.
・Treatment can be performed at room temperature with only a short immersion time.
・After treatment with this product, there is no adverse effect on the contact resistance of the copper surface.
・Can be used as an alternative to chromate treatment.
・Discoloration has been confirmed to be inhibited under the following test conditions.
Constant temperature and humidity test: 70°C, 80%RH, 48 hours.
Heating test: 140°C for 15 minutes.
How to Use
・Dilution concentration ： 0.1～10％ (aqueous solution)
・Treatment temperature ： 15～40℃.
・Treatment time ： 30 seconds to 1 minute
・Rinse ： No rinse
Application
・Anti-discoloration agent for copper plated products, copper foil, copper wire and other electronic components.
Properties
・Appearance ： Colorless transparent liquid
・Specific gravity : 1.0 (25℃)
・pH ： 3～4 (Original liquid)
Packing
20kg