
It consists of a Cr6+ free inorganic polymer coating that provides a good corrosion resistance to zinc, zinc alloy or phosphated parts
DELTA-COLL has a layer thickness of 2-6 µm.
It offers a good corrosion protection against white rust (more than 200 hours
in salt spray test).
DELTA-COLL can be used to reduce zinc layer thickness in some cases without
compromising corrosion protection.
(*) It reduces coefficient of friction of fasteners, adjusting it between 0´08-0´14