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