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FF-7725 Methyl Sulfonic Acid Matte Tin Additives Fluoride Free Methanesulfonic Acid

FF-7725 Methyl Sulfonic Acid Matte Tin Additives Fluoride Free Methanesulfonic Acid

  • Type
    Matte
  • Use
    Tin Plating
  • Item
    Chemical Auxiliary Agent
  • Feature
    Fast Deposition, Stable Process
  • Place of Origin
    CHINA
  • Brand Name
    FENGFAN
  • Model Number
    FF-7725
  • Minimum Order Quantity
    Negotiable
  • Price
    Negotiable
  • Packaging Details
    Standard export packaging
  • Delivery Time
    15-25 work days
  • Payment Terms
    L/C, D/A, D/P, T/T, Western Union, MoneyGram
  • Supply Ability
    200000pcs/day

FF-7725 Methyl Sulfonic Acid Matte Tin Additives Fluoride Free Methanesulfonic Acid

Methyl Sulfonic Acid Matte Tin Additives ; fluoride-free methanesulfonic acid type FF-7725

 

FF-7725 is a fluoride-free methanesulfonic acid type electroplating dumb tin additive, suitable for rolling operation, stable plating solution, wide operating range, uniform tin plating layer deposition, good welding performance, and can be used in various plating dumb Tin or semi-bright craft .

 

1. Applicable equipment and materials

1.1 Equipment: Steel troughs of polyethylene, polypropylene, PVC or acid-resistant fiberglass.

1.2 Heating/cooling: need heating/cooling system, Teflon or other acid resistant material.

1.3 Stirring: rack plating, the cathode moves 3-4 m/min, and stirring is not applicable.

1.4 Anode: pure tin anode, use PP anode bag for anode hanging basket.

1.5 Circulation/filtration: A circulation filtration system is required, 4~5 circulations/hour, and the number of filter elements is less than 5~10µm.

1.6 Exhaust system: an exhaust system is required.

 

2. Bath working conditions

Project Rack plating Barrel plating
Range Optimal Range Optimal
Tin ion content 20~30g/L 25g/L 12~28g/L 20g/L
Methanesulfonic acid (70%) 160~180ml/L 170ml/L 170~190ml/L 180ml/L
FF-7725A additive 25~40ml/L 30ml/L 25~50ml/L 30ml/L
Temperature 18~30℃ 25℃ 18~30℃ 25℃
Cathode current density 2.0~4.0 ASD 3.0 ASD 0.2~2.0 ASD 1.0 ASD

 

3 Open bath method and steps

Bath material Rack plating Barrel plating
Stannous methanesulfonate 75ml/L 67ml/L
Methanesulfonic acid (70%) 170ml/L 180ml/L
FF-7725A additive 30ml/L 30ml/L

 

3.1 Clean bath, pump, anode, etc. with 10% by volume FF-7725 acid extender;

3.2 Add 1/2 volume of pure water to the cleaned bath;

3.3 Open the circulation stirring, and slowly add the required amount of methyl sulfonic acid;

3.4 Continue to circulate and stir, and slowly add the required amount of stannous methanesulfonate.

3.5 Continue to circulate and stir, and slowly add the required amount of FF-7725A additive.

3.6 Add pure water to the final volume, fully circulate and confirm that the temperature reaches the operating temperature before use.