Functions and Uses：
1. It is a liquid additive used to remove the iron impurities in the nickel plating bath.
2. It can form a water-soluble complex with the ferric iron and that transfers the iron to bivalent. When used in conjunction with nickel plating, CT-990 can avoid the block of anode bag and filter, and also prevent the iron precipitation.
3. It can be used in bright nickel plating, semi-bright nickel plating and nickel sealing bath, but no interrupt the leveling ability, the brightness, the flexibility, the corrosion resistance and the plating capacity of chrome
CT-990 5~10 ml/L
Add 5 kg of boric acid, add 1 liter of CT-990, supplement the required rate can be increased to 5 kg per additional boric acid, add 3 kg CT-990