Ad-Tech Industries - Industrial Coating & Finishing Services
Electrocoating (E-Coat)
Electrocoating is Depositing Paint Through Electrical Current. This process, also known as electrodeposition coating, submerges the part in the Pretreatment and E-Coat Paint stages and cured with heat.
Therefore, E-coat provides superior coverage in areas that conventional spray painting can’t reach.
Applications:
- AGRICULTURE AND CONSTRUCTION EQUIPMENT
- CASTING
- MACHINED AND EXTRUDED PARTS
- WELDMENTS
- TUBING
E-Coat: Black Cathodic Epoxy (PPG Powercron 6000CX) is designed as a primer, or an internal finish coat with excellent corrosion and chemical resistance. This coating should not be used as a finish coat for exterior products unless it has been top coated. Our e-coating system can produce a Class “A” finish. When needed, we can also provide both powder and liquid topcoats.
Our E-Coat Capabilities Are:
Ware Package: 48″ high x 36″ wide x 96″ long
Weight: 1,000 lbs per load bar
Coating Thickness: .0006-.0011
12-Stage Pretreatment (Acid Pickle and Zinc Phosphate)
Corrosion Resistance: 1,000 hour salt spray
E-coat Advantages
- Very good protection & corrosion resistance (over 1000 hours in salt spray chamber)
- Very good adhesion
- Resistance to mechanical deformations
- Fully automated and reliable process
- Wide compatibility with other paints (liquid and powder). Can be used as base
- Can be applied on all types of substrates: steel, aluminum, electro-galvanized, galvanized, zinc, iron, etc…
- Coats difficult surfaces better than other anti-corrosion treatments (complex shapes and geometries, hollows)
- Very good multi-impact stone chipping resistance
- Very good chemical resistance (battery fluid, petrol, oils, …)
- Excellent thickness uniformity of the final coating (.0006-.0011)
How Does E-Coating Work?
E-coating is based on the principle that “opposites attract.” Cathodic electro-coating is the process where the product to be coated is given a negative charge and attracts the positively-charged paint molecules. The paint molecules are drawn to the metal, forming an even, continuous film over it’s entire surface, including edges, corners, and enclosed areas.
The electrocoat process can be divided into four basic steps:
Step one: pretreatment in which metals are cleaned and phosphate dipped preparing the surface for the electrocoat.
Step two: the electrocoat is applied. The electrocoat bath consists of deionized water and paint solids.
Step three: post-rinse removes excess paint solids.
Step four: curing the electrocoated parts in the oven.
E-coat is the standard for automotive, defense, agricultural, appliance, and recreational industries. It gives superior coverage, adhesion, and corrosion resistance.