Coating a vehicle is an intensive process that requires integration of painting into the assembly process and the aesthetic challenges of matching colors (and gloss levels) of the various substrates used in a single automobile. Automotive components require a durable coating that can outlast tough weather conditions and corrosion over a long period.
Currently liquid paint is widely used throughout the automotive industry but more automotive specifications are recognizing the benefits provided by powder coating. These benefits include:
Characteristic | Liquid | Powder | Cost Savings | Customer Satisfaction |
No mixing of components | Yes | No | Powder | |
Cleanup and changeover times | High | Low | Powder | |
Cure times | High | Low | Powder | |
Part coverage | Low | High | Powder | |
Coats required (wheels) | 3 | 2 | Powder | |
Flammability | High | Low | Powder | |
VOCs | High | Low | Powder | |
Durability | Medium | High | Powder | |
Corrosion resistance | Medium | High | Powder | |
Mar resistance | Medium | High | Powder |
When it comes down to customer satisfaction, powder coatings preform with superior durability, corrosion, scratch and abrasion resistance compared with liquid paint. Powder coatings have evolved and are available in a variety of finishes including glossy, matte, metallic, smooth and textured. It is clear that the continuous improvement of powder coating has enabled a strong presence in the automotive industry.
Article by Karl Rijkse, VP Technical Sales & Product Management Technical – North America & Thomas Wagner, Global Manager Transportation, Director Sales - Asia (China&TJSEA)
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