The coating system is designed to provide a variety of fasteners with high-performance and enduring black corrosion protection.
Dörken MKS-Systeme GmbH & Co. KG (Herdecke, Germany) and parent company of Dörken Corporation USA offers a coating system that is designed to provide fasteners with both high performance and durable black corrosion protection. The coating, which represents an addition to the black coatings of the DELTA-MKS product series, consists of the matt zinc flake basecoat DELTA-PROTEKT KL 120 and the water-based black topcoats DELTA-PROTEKT VH 321 GZ and VH 322 GZ.
"Together, these coatings provide effective reduction of white corrosion, excellent adhesion and resistance to abrasion while meeting the respective coefficients of friction," said a company spokesperson. The new system was developed specifically for screws and other fasteners for use in the automotive industry and meets several auto standards.
"Black surfaces are in increasing demand for use in areas that are visible," said the spokesperson. "So far it has proved difficult to meet the complex requirements of manufacturers with the premium appearance customers expect.
"The new system fulfils the requirements of the automotive industry with regard to corrosion protection, while at the same time giving components a stable black surface.
"With an overall layer thickness of 18 um depending on the structure of the layer and geometry of the parts, corrosion durability of 840 hours as per DIN EN ISO 9227 is achieved. Further, white rust resistance of 240 hours is exceeded. The basecoat guarantees active cathodic protection and optimized adhesion to steel while the topcoat ensures higher chemical resistance, the consistency of the coefficients of friction and satisfies temperature resistance requirements."
The system can be applied using all standard methods, such as dip, dip spin or spray. The choice of procedure depends on the size and geometry of the parts. A further advantage of the new system is its compatibility. This enables the matt basecoat to also be combined with other topcoats of the DELTA-PROTEKT and DELTA-Seal product range.
According to the company, Dörken's global coating solutions are approved for use by and meet the standards and specifications for corrosion protection, sealants and lubricity performance of fasteners of vehicle manufacturers and Tier One suppliers worldwide yet are environmentally friendly. Its product development programs and manufacturing operations are certified in accordance with DIN EN ISO 9001:2000 and to ISO 14001.
For more information contact:
Dörken Corporation USA
P.O. Box 429
11200 Cedar Knoll Drive
Grass Lake, MI 49420-9622
517-522-4600
www.doerken-mks.com