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  • IKS PVD Technology (Shenyang) Co.,Ltd
  • Tel:+86-24-89635131
  • Fax:+86-24-89335192
  • Email:IKS.PVD@foxmail.com
  • ADD:No.83-42 Puhe Road, Shenbei New District, Shenyang City, Liaoning Province, China
  • Decoating Formulation And Process Of Partial PVD Film Coating Material
    Mar 27, 2018

     

    Coating 

    Material

    Corrosive LiquidFormulaService ConditionsRemarks
    Al
    Nitric Acid

    Appropriate Concentration of 

    More Than 80% Nitric Acid

    90~~100℃ Heat Preservation By Boiling Water
    NaOH Solution

    NaOH 5g + Glycerinum 0.5m

    Ethyl Alcohol 8ml + Deionized 

    Water 6ml

    30~~50℃

    Milky White When Just Preparation of Solution, After Depositing a Week It Turns Yellow, And It Is Available

    When Transparent  in 30 ~ 50

    Au
    Hydrochloric Acid

    Hydrochloric Acid:Water =1:(3~4)

    Room Temperature

    ~60℃


    Iodine-Potassium Iodide

    Iodine 1g - Potassium Iodide 4ml + Water 4ml

    Room TemperatureFast Deocating
    Aqua Regia

    Room Temperature or Slightly 

    Heated:Hydrochloric Acid = 3:1

    Room TemperatureStrong Acidity
    Cr

    NaOH 4g+ Potassium 

    Permanganate 3g + Water 50ml


    When Generating The Yellow MnO, Make It Dipped In Grass Dilute Acid. Then Washed By Water And Then Use Corrosive Liquid


    Cerous Sulfate 2~4g + Nitric Acid 2~4ml + Deionized Water 20ml

    Room Temperature 

    or Slightly Heated

    Cerous Sulfate(Ce(SO4)3)
    Ni-Cr

    Cerous Sulfate 2~4g + Nitric Acid 

    2~4ml + Deionized Water 20ml

    Room Temperature

    or Slightly Heated


    Si

    Fuming Nitric Acid:Hydrofluoric 

    Acid: Acetic Acid=3:1:1

    0℃Put It In Ice Water or Good Coolant Vessel
    MgF2
    Hydrochloric AcidHydrochloric Acid:Water = 1:(3~4)

    Room Temperature

    ~60℃

    Used for Acid-Resistant Glass

    Oxalic Acid + 

    Potassium 

    Sodium Tartrate

    Oxalic Acid + Potassium Sodium 

    Tartrate + Water

    1.5%     1.5%         97%
    0.5%     0.5%         99%
    0.75%   0.75%       98.5%
    0.75%   0.5%         98.75%

    In the 98 Oven

    2 Hours
    1 Hour
    0.5 Hour
    1 Hour

    Remove The Film Without Corrode Glass and Coating

    Used for K Series Glass

    Used for K Series Glass

    Used for BaKK Series Glass

    Used for ZK Series Glass

    ZnSHydrochloric AcidHydrochloric Acid:Water = 1:4Room Temperature
    SiO2

    Ammonium 

    Bifluoride

    NH4FHHF

    Hydrofluoric Acid 30ml + 

    Ammonium Fluoride 60g + 

    Deionized Water 100ml

    Or Hydrofluoric Acid 30ml + 

    Deionized Water 200ml

    Room Temperature

    Put It In Polyethylene Container To 

    Avoid Corroding The Glass, And 

    Applying Protection Glue, Then 

    Wipe It With 0.1um AI2O3 Power, 

    And Check By Water At Any Time

    Al2O3NaOH SolutionNaOH 10g + Water 10ml30~~50℃
    ZrO2

    Concentrated

    H2SO4

    Pure And Concentrated H2SO450~~60℃ZrO2HF Acid