Atotech’s two-coat system, Zintek® 200 SL F, has been approved to meet the standards of two French OEMs for the protection of fastener systems.
Jean-Louis Baudoin, Atotech OEM manager France, explains: “Atotech’s zinc flake coatings provide advanced corrosion protection and fulfil the requirements of a substantial number of OEM specifications. Featuring high corrosion protection, controlled friction properties, and a reduced number of coating layers, Zintek® 200 SL F represents a cost efficient solution – perfectly in line with the French OEMs’ demanding requirements.”
Along with its strong adhesion properties Atotech states Zintek® 200 SL F shows excellent corrosion protection. A coating must maintain corrosion resistance in the neutral salt spray test (ISO 9227), without base metal corrosion, for at least 600 hours according to the standards of protection for fastening systems. Zintek® 200 SL F exceeds this, lasting for more than 1,000 hours without corroding.
Conventional anti-corrosion systems are based on zinc flake coatings consisting of two base coat layers and one topcoat layer. Atotech’s Zintek® 200 SL F system saves one layer by incorporating two self-lubricated corrosion protection layers. Compared to a three-coat-system, Atotech states Zintek® 200 SL F enables a lower deviation of coefficients of friction, giving a centred coefficient of friction (CoF) in the range of 0.12 to 0.18.
Zintek® 200 SL F fulfils friction requirements defined by both OEMs on diverse materials, such as aluminium, galvanized steel and e-coated steel and does not exhibit a ‘stick-slip’ effect, even with two lubricated layers.
