D30 Iron parts bronze black dyeing salt
★Use and characteristics
1.It the can be used as soon as combine with ammonia water, which is suitable for the brass parts which copper content is 57%-65%.
2.It will not wipe rinse cast in bronze layer in the water, dry film hard and smooth, do not fade, but easy to rinse color.
★Solution composition and operating conditions
1.Operation conditions:
Brass dyeing black salt 40 ~ 60 g/L, sodium carbonate 15-30 g /L, industrial ammonia water 100-400ml/L water, temperature 20℃ -30 ℃ time 15 seconds -3 minutes
2.Product catalog: Brass black dyeing salt