Optimum Coating vs Concrete Dust

Joel Blake

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Recently we had a situation involving the Optimum Coating, a 2010 black Nissan GTR and concrete dust.


The thermoplastic paint was corrected and decontaminated, and a layer of Opti-Guard was applied to the paintwork. The coating was allowed the 12 hour curing time and then due to poor weather in Victoria Australia, experienced a week or so of rain and cold conditions immediately after while the coating is still attempting to cross link and harden.


The combination of wet weather and excessive concrete dust in the inner city car park created severe waterspotting on the Optimum Coating. This is what the client was greeted with.




Initially it was thought that the Optimum Coating had etched, due to a combination of Opti-Coat not being compatible with the thermoplastic (self healing) paint, and the highly alkaline concrete dust on the fresh coating.


We can proudly report that this was not the case!


The moisture and concrete dust did create the marks and they had bonded to the coating, however they did not penetrate the Optimum Coating! As suggested, the client used a non abrasive paint cleaner (in this case Prima Amigo) and the watermarks were removed from the coating completely.


This was the end result. Enjoy the photos of this stunning vehicle











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