Gemstone Color Collection 300 Tint Line


• Water-based cathodic coating bath
• Electro-deposited clear acrylic coating
• Coating from 5 – 25 microns DFT 
    - Hard 
    - Mirror finish 
    - Perspiration resistant 
    - Abrasion resistant 
    - Impact resistant 


Coupling ELECTROCLEAR® resin with our latest ANDARO™ special effect pigments, we get…ELECTROCOLOR®
• Highly transparent color coatings
• Dye-like appearance with pigment-like performance
• Intense color allowing for lower pigment loading
• Finishes not previously achievable by e-coat such as candy colors, flat anodized looks, and plated metal looks 

What is e-coat?

The fundamental principle of electrocoating – materials with opposite charges attract.

For a cathodic system like EC2800, the part is negatively-charged and the paint bath is positively-charged.

What are the target markets for this product?

• Decorative hardware
• As a replacement for anodized finishes
• As a replacement for plated finishes
• Automotive trim
• Aluminum extrusions
• Appliances
• Consumer electronics

What substrates can this be applied over?

• Applied over plated and base metal substrates 
    - Gold 
    - Silver 
    - Nickel 
    - Aluminum 
    - Copper 
    - Brass 
    - Steel (Stainless) 
    - Tin 
    - Bronze

*Note: Different pretreatment may be required for various metals

How do I control the EC2800 Bath?

• Add concentrate to replace coated-out solids
• Maintain pH and conductivity by removing free acid using anolyte cell or by dumping permeate.
• Maintain solvent level due to evaporative losses. This is minimal, typically less than one liter per week for a 50 gal. tank. 

How do I control film thickness?

• Adjust voltage, higher for thicker films
• Second option would be to increase temperature for thicker coating (but stay within the recommended temperature range of 80°F – 90°F).

What pretreatments are needed?

Some metals require special processing like brass, but for most metals you need a degreaser and sometimes an adhesion promoter. Contact PPG for more details about your substrate. 

Does this process require a bake?

Yes, the parts must be cured at 320°F (metal temperature) for 20 minutes.

Can I coat plated plastic parts?

Yes, but most plastics cannot withstand the cure temperature so, check the temperature limits of the plastic substrate first. Electro-deposited clear acrylic coating

What do I need in terms of equipment to get started?

• Water-based cathodic coating bath
• This process can be run in very small scale, as small as lab beakers. Your part will determine your tank size needed.
• A rectifier (or power supply) that converts AC power to DC power.
• An oven to cure the parts
• A rinsing tank or station
• Coating from 5 – 25 microns DFT

Who can I contact to design/purchase a line?

• PPG can assist with equipment design and make recommendations for a complete process.
• We can also supply you with equipment suppliers’ contact information.

How is the chemistry supplied?

• The resin is supplied in 5 gallon pails or 50 gallon drums.
• The Gemstone olor Collection tints are supplied in one-gallon containers.

EC2800 Technical Data Sheet

EC2800 Process Guide


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Call us whenever you need us at 1-866-PPG-TRUE (774-8783). We’ll do whatever it takes to get the job done right.

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