zinca is a single component cold galvanizing compound , the brand of the highest quality cold galvanizing compound on Iran's market containing min. of 95% zinc dust by weight in the dried film. It bonds to clean iron, steel to provide maximum protection against rust and rust creepage through "galvanic action"
- cold galvanizing compound ZINCA is commonly applied like a paint (brush, roller, aerosol, compressor type or airless sprayer) it is unlike any type of paint because it provides galvanic action and will not allow any rust creepage. Paint (any sort of paint) gives only skin-type protection. If this skin is broken, it not only rusts at the break but also allows rust to creep under the film.
the protection provided by ZINCA is anodic action. As the zinc is sacrificed, zinc hydroxy carbonates and other zinc salts form in upper level of the zinca film ,making the coating denser with reduced conductivity. Thus, the anodic action continues until the film is converted into a dense, impervious, cementious coating. The coating will now function as an impermeable barrier resistant to weather, water and fume attack at upper leve. Fresh zinc does exist in lower section of film with full attachment to base metal