| Arozinc
rich primer is a high solid two pack zinc rich
primer based on epoxy resin, Zinc dust and speciality
additives. Zinc dust primers may be used to prevent
corrosion of iron and steel in two ways.
(A) Active protection : Galvanic protection
( Cathodic / Sacrificial )
(B) Passive protection : Protection
by means of a barrier ( Zinc oxides / binder )
Arcozinc combines the galvanic characteristics of a
zinc coating with the barrier protection of a paint.
It offers an excellent active and passive protection
due to the special zinc oxides and the binder on the
other hand.
(A) Active protection : Because Arrcozinc
rich primer has > 90% of zinc in its dry film, it
provides excellent cathodic protection to steel. Different
tests ( 600 hrs salt spray test, humidity test ) prove
that in very aggressive circumstances, the zinc in Arcozinc
rich primer sacrifice itself, protecting the metal surface.
(B) Passive protection : As the Arocozinc
rich primer oxidises, a layer of zinc salts slowly builds
up on it, offering a barrier protection. Next to this,
a supplementary barrier protection is provided by the
binder in Arcozinc rich primer. The binder reduces the
disintegration of the zinc.
Scope : It can be used on Iron / Steels
only ( i . e. M . S. C. S. etc. ) |
