IS 6012 : 2018

Inorganic Zinc Rich Paint (Potassium Silicate Based)

SSPC Paint 20
CurrentSpecializedSpecificationMaterials Science · Painting, Coatings and Surface Finishing
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Summary

IS 6012 covers inorganic zinc rich primer — the highest-performance anti-corrosion primer. 75%+ zinc dust provides cathodic protection. Used on bridges, offshore, and industrial steel.

Specification for inorganic zinc rich primer for corrosion protection of steel in aggressive environments.

Key Values
Zinc in dry filmMin 75%
DFT75-100 µm
Salt spray>2000 hours
Practical Notes
! Must blast to Sa 2.5 — won't adhere to hand-cleaned surfaces.
! Apply in dry conditions — moisture causes mud-cracking.
! Overcoat with epoxy/polyurethane only, NOT alkyd.
Cross-Referenced Codes
IS 2074:1992Ready Mixed Paint, Brushing, Bituminous, Blac...
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IS 4759:1996Hot-Dip Zinc Coatings on Structural Steel and...
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IS 2932:1993Enamel, Synthetic, Exterior (a) Undercoating ...
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IS 6745:1994Method for Determination of Density of Harden...
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zinc rich paintinorganic zinczinc silicateanti-corrosionprimer