170 Lead-free White Bronze Blacken Agent
★Use and characteristics
1. It was developed specially for lead-free white bronze tin blacken agent, and have small corrosion for matrix. It need short operation time and have high efficiency. Normal temperature use, easy to operate;
2.This product is blue transparent liquid without irritating odor; color from black to dark light;
3.Application of tin coating on the metal copper tin, tin and lead or lead;
★Solution composition and operating conditions
1. Operation conditions:
Lead-free white bronze tin blacken agent concentration: 400-1000mL/L, soaking time: 30 seconds to -3 minutes, exhaust: no need, work piece swing to ensure uniform blackness, filtering: be sure to use a black mass, single core filter. Temperature: at room temperature can be normal black, but black in the above 35 degrees, the firmness of the film more excellent.
2 .Product catalog: white bronze tin blacken agent