Decoating Formulation And Process Of Partial PVD Film Coating Material

Appropriate Concentration of 

More Than 80% Nitric Acid

NaOH 5g + Glycerinum 0.5ml + 

Ethyl Alcohol 8ml + Deionized 

Water 6ml

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

When Transparent  in 30 ~ 50℃

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

Room Temperature

~60℃

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

Room Temperature or Slightly 

Heated:Hydrochloric Acid = 3:1

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 2~4g + Nitric Acid 

2~4ml + Deionized Water 20ml

Room Temperature

or Slightly Heated

Fuming Nitric Acid:Hydrofluoric 

Acid: Acetic Acid=3:1:1

Room Temperature

~60℃

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

Ammonium 

Bifluoride

NH4FHHF

Hydrofluoric Acid 30ml + 

Ammonium Fluoride 60g + 

Deionized Water 100ml

Or Hydrofluoric Acid 30ml + 

Deionized Water 200ml

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

Concentrated

H2SO4