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👉 Check Latest PriceDescription Sika® FerroGard®-903+ is a surface applied mixed corrosion inhibitor, designed for use as an impregnation of steel reinforced concrete and is an improved formulation of the original Sika® FerroGard®-903. Sika® FerroGard®-903+ is based on organic compounds. Sika® FerroGard®-903+ penetrates the concrete and forms a protective monomolecular layer on the surface of the reinforcing steel. Protection with Sika® FerroGard®-903+ delays both the start of corrosion and reduces the corrosion rate. Corrosion protection with Sika® FerroGard®-903+ increases the service and maintenance life cycles by up to 20 years when used as a part of a complete Sika Concrete Repair and Protection System. Key Features Does not change the appearance of the concrete structure. Does not alter the water vapour diffusion properties of concrete. Long term protection and durability. Economic extension of the service life of reinforced concrete structures. Easy, economical application, renewable.