PVD Coating Removal Method ~ Compliant with EU REACH Regulations~

 

Replacing Sandblasting! Chemical coating removal is faster and more effective for large quantities of workpieces!

 

PVD refers to the process of depositing the desired coating material onto a workpiece in a vacuum environment, either in gas or plasma form. Due to its versatility and excellent wear and chemical resistance, PVD coatings find applications in various fields including optics, electronics, and semiconductor industries. However, some workpieces may require coating removal for reusability or refurbishment, thus necessitating a coating removal process.

 

Comparison of Three Treatment Methods

 

Treatment Method	Replace with New Parts	Sandblasting	Chemical Coating Removal
Impact on the Part	Entirely New Parts	Potential deformation, wear, damage to parts	No particular impact
Impact on Production Environment	No Impact	Residual powder may contaminate vacuum coating equipment, clean rooms	Process involves water rinsing and drying, no environmental contamination potential
Cost	High	Low	Medium
Labor	Low	High	Medium

 

Optical Molybdenum Electrode Plate Coating Removal

 

Workpiece: Molybdenum electrode plate

Purpose: Accumulated coatings on the surface due to multiple coating procedures, aiming for reusability to reduce costs.

Conditions: Controx E 230 100% original solution, heated to 90°C, reaction time of 15 minutes.

Results: After coating removal, a simple rinse with deionized water reveals the original metallic color of the molybdenum plate.

 

Before Coating Removal:

 

 

After Coating Removal:

 

 

Stainless Steel Component PVD Coating Removal

 

Workpiece: Stainless steel component

Purpose: Processing heavy-duty components, aiming for complete coating removal for re-coating.

Conditions: Controx E 230 100% original solution, heated to 70°C, reaction time of 30 minutes.

Results: After coating removal, a simple rinse with deionized water reveals the original metallic color of the stainless steel, enabling further processing.

 

Before Coating Removal:

 

 

After Coating Removal: