Indian Raod cngress

Section 1900
Structural Steel
b) Conventional Painting System for areas where corrosion is
not severe
Priming Coat :
One heavy coat or ready mixed paint, red lead primer conforming to
IS:102
or
One coat of ready mixed zinc chrome primer conforming to IS:104
followed by one coat of ready mixed red oxide zinc chrome primer
conforming to IS:2074.
or
Two coats of zinc chromate red oxide primer conforming to IS:2074.
Finishing Coats :
Two cover coats of red oxide paint conforming to IS:123 or any other
approved paint shall be applied over the primer coat. One coat shall
be applied before the fabricated steel work leaves the shop. After
the steel work is erected at site, the second coat shall be given after
touching up the primer and the cover coats if damaged in transit.
c) Conventional Painting System for areas where corrosion is
severe
Priming Coat :
Two coats or ready mixed red lead primer conforming to IS:102
or
One coat of ready mixed zinc chrome primer conforming to IS:104
followed by one coat of ready zinc chromate conforming to IS:2074.
Finishing Coats :
1906.4 Painting in the Shop
Two coats of aluminium paint conforming to IS:2339 shall be applied
over the primer coat. One coat shall be applied before the fabricated
steel work leaves the shop. After the steel work is erected at site, the
second coat shall be given after touching up the primer and the cover
coats if damaged in transit.
All fabricated steel shall be painted in the shops after inspection and acceptance with at
least one priming coat, unless the exposed surfaces are subsequently to be cleaned at
site or are metal coated. No primer shall be applied to galvanised surfaces.
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