Thin Organic Coating (TOC)

Thin Organic Coating (TOC) refers to very thin organic protective films in the micrometer range that protect metallic surfaces from corrosion, chemical influences and mechanical stress. The coating is based on organic binders that cross-link to form uniform, well-adhering layers and leave the appearance and processability of the base material virtually unchanged. This makes TOC particularly suitable for applications in which optical quality and dimensional accuracy are crucial.

In industrial practice, Thin Organic Coating offers not only corrosion protection, but also functions such as improved sliding behavior, electrical insulation or temporary protection during transport and storage. The coatings can be combined with other surface treatments, such as metallic coatings, which further increases the duration of protection. TOC is becoming increasingly important in the coil coating sector in particular, as it can be applied continuously to strip-processed metals and thus enables efficient, reproducible and resource-saving surface finishing.

TOC is applied by spraying, rolling, dipping or spinning, whereby modern systems are often water-based or low-solvent formulated and therefore meet current environmental requirements. Further developments are aimed at increasing chemical resistance and durability as well as integrating additional functions such as anti-fingerprint effects or improved adhesion. As a result, Thin Organic Coating is increasingly establishing itself as a versatile solution for various sectors such as automotive engineering, household appliance manufacturing, fastening technology and the strip processing metal industry.