Polyalk CP 293 — Corrosion Protection Admixture for Reinforced Concrete | Sunanda (20 kg)

Steel reinforcement and chloride ions are a combination that concrete engineers have been fighting for as long as reinforced concrete structures have existed in coastal, industrial, and aggressive environments. The physics haven't changed — chloride ions penetrate through concrete cover, reach the rebar, trigger an electrochemical reaction, and the steel starts to corrode. The concrete cracks from internal expansion pressure, spalling concrete follows, and the structure begins the slow deterioration cycle that ends in repair or replacement. Polyalk CP 293 from Sunanda Speciality Coatings is the corrosion protection admixture that interrupts this cycle at the mix design stage — giving reinforced concrete structures the built-in chemical defence that aggressive environments demand.

Mixed into fresh concrete during batching, Polyalk CP 293 disperses through the mix and migrates to the steel reinforcement surface where it forms a protective barrier against chloride-induced corrosion. This protection doesn't degrade over time the way surface coatings can — it's part of the concrete itself, working continuously from within the structure's lifecycle. For contractors and structural engineers working on buildings, infrastructure, and industrial facilities in India's coastal regions, industrial zones, and areas with aggressive groundwater — including it in the mix design is a straightforward decision that pays back in service life.

Sunanda Speciality Coatings has developed Polyalk CP 293 with an understanding of Indian construction conditions — the cement types, the environmental exposures, the site practices — that makes it a practical corrosion protection admixture rather than an over-engineered product calibrated for conditions that don't exist on most Indian sites. It works with standard mix designs, compatible with conventional admixtures, and backed by Sunanda's established construction chemical expertise in the Indian market.