Renchang copper antioxidants Description: Renchang copper antioxidants are copper and copper alloy special protective agent, is a water-soluble processes. Is a nano-technology products. This layer of colorless protective agent in copper and copper alloy formed on the surface of transparent film thickness of a few nanometers. Can prevent water, sea, air, oxygen, hydrogen sulfide, sulfur dioxide, as well as some organic vapors workpiece erosion. Mainly for the protection of the indoor environment of copper and copper alloys. Process characteristics: 1. Water-soluble technology, safety and environmental protection; 2. The process is simple to operate. Simply thoroughly cleaned workpiece immersed in the working fluid, can be effective in the surface protective film is formed; 3. The film hardly affect the welding performance and contact resistance of the copper layer, suitable for electronic components and circuit boards copper protective layer; erosion 4. The protective layer of ammonia or cyanide, no protective effect; 5. The protective film can withstand a temperature of 150 ℃ -200 ℃ bake 0.5-1 hours, protective performance does not degrade; 6. Treatment area big deal at least 15-20 square meters per liter, the actual maximum reached 35 m2 / liter 7. acid system compared to other systems containing formic better stability, corrosion resistance is also smaller. 8. This product environmental indicators: EU ROHS environmental standards process: HT copper protective agent operation is extremely simple, just concentrate diluted in pure water can be used. Process: copper - washing - washing - immersion protection agents (note the temperature and time, time is too short affect the protective effect, it does not matter too long) - water (very important) - washing - drying - dry (temperature is not too high) - test storage