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Spray Aluminizing involves deposition molten Aluminium of purity 99.5% on to a prepared surface. The metal being sprayed is melted in an Electric Arc atomized by compressed air and then projected on to the substrate has been prepared by Sand & Quartz Blasting. As per the IS & BS Standards (it will withstand up to 950ºC)
Advantage :
> Site job possible
> No size limitation
> Better surface preparation
> Cold process
> Pure aluminum coating
> Ideal surface for painting
Sealant :
The metal-sprayed coating is in itself a complete protective system for iron or steel structures.
The use of a sealant, however, enhances this protection and also produces a pleasing appearance.
Advantage :
a. It penetrates and fills the pores, thus reducing the total area of the exposed metal and therefore, the rate of dissolution of the coating.
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