Specifications

• Environmental Friendly: The electocoating process is environmentally friendly due to the water-based paint system it uses and the reduction in heavy metals.
• Corrosion Protection: In e-coat, the deposited paint film becomes part of the metal object until the entire workpiece is painted. Even intricate and hard to reach areas are painted.
• Intricate Parts / Recessed Areas: Because electrodeposition continues until the entire workpiece is painted, even intricate and hard to reach areas are painted.
• Reduces Paint Waste: Transfer efficiencies of better than 95% result in reduced paint waste, especially when compared with spray applied coatings.
• Water-based: E-coat paint is 80% water with as little as 1-3% volatile organic solvent. It is environmentally friendly, not a fire hazard, and has low viscosity.
• Fewer Defects: E-coat gives a better quality product: the uncured paint is dry enough to allow limited handling; during baking, the e-coat will not sag nor will the vapors cause the paint to wash off from recessed areas.
• Predictable Costs: Paint costs are predictable because the film thickness does not vary from job to job. Costs in other painting processes (powder coat, wet spray) can vary according to operator technique or attention.
• Better Finish: An even film build is possible over the entire surface of the part. In addition, the deposited film is reproducible from part to part and day to day.
• Reduced Labor Costs: Even the largest e-coat system has only one person tending the e-coat equipment.

Limitations

• § Substrates: Electrodeposition can only take place on electrically conductive substrates.
• § Color: Application of a variety of color coats requires separate dip tanks.
• § Capital Costs: Capital investment & running cost in an entire e-coat system is much high in comparison powder coat

B.