Optimum Opti-Clay Firm Black is the aggressive version of Optimum Opti-Clay for fast removal of surface contamination such as paint overspray, indistrial fall out, brake and rail dust, tree sap and bug splatter.
For vehicles with severe contamination choose Opti-Clay Firm Black to remove it faster and save time and effort. While Opti-Clay Black is aggressive, it is still far more gentle than some other strong clay bars on the market, meaning less paint marring, and less polishing required afterwards.
Use Optimum Opti-Clay with a lubricant such as Optimum No Rinse as clay lubricant strength.
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