designed as galvanized steel objects and structures. It combines a high level
of corrosion resistance with advanced mechanical and degassing properties,
excellent adhesion to substrate and inter-coat adhesion. NWK840C gives efficient application, good
edge coverage and provides a uniform flow.
Typical areas of
application include building structures, agricultural machinery, steel fences,
outdoor public areas and steel components present in coastal environments.
quality of the coating system is largely dependent on the type and quality of
surface preparation, pretreatment. Recommended type of surface preparation is
grit blasting which must be performed. Grit blasted surfaces are suitable to provide
a moderate level of protection.
steel sweep blasting is recommended.
of pretreatment include zinc and iron phosphating and chromating of galvanized
steel. Recommended types of pretreatment depend on specific design requirements
and on the need for corrosion resistance.