First,Product number：Q/YS.402(Yi Shun brand)

Second,product features：

Products can be used for chemical tin plating on the surface of copper, brass, copper beryllium copper alloy, tin coating is bright and silvery white, can increase the copper welding and the decoration, does not affect the conductivity, It is suitable for the electronics industry, appliances, furniture, food packaging. It is Anti oxidation, non-toxic，non heavy metal, and make product perfect appearance. Salt spray test is more than 45 hours without rust. soak without plating equipment.

Third,  product index：

1. Proportion ：1.04-1.05

2. PH:1.0-1.2

3. Appearance：colorless transparent liquid

Fourth, chemical tin plating process：

Copper pieces removal of oil→pickling or (polished) or (sandblasting) →two step washing → chemical tin plating →three step washing →dry with cold wind→ the detection.

Tin chemical tin plating: add 1 times water and 8-10g/kg Tin plating additive into this working liquid. Tin temperature ：at room temperature of 20 DEG C to 35 DEG C, time :5-8 minutes, lightly stir work liquid or gently flip the work piece.

Fifth,  matters needing attention：

In order to prevent the copper surface from re-oxidation and affect the quality of the coating, the copper work piece should be put into the tin bath in time.

Sixth, Product supplement in the midway:

When the tin plating efficiency decreases, you can add 1% o tin plating additive and stir evenly to use.

Other processing：Chemical Plating Liquid Train、Zinc coating imitation gold agent、Chemical silver plating liquid (copper substrate)、Stainless steel chemical thicker liquid copper  plating