Technically OCW is a Hybrid Spray sealant/wax. To quote autogeek:
Optimum is the first and only wax that contains UVA and UVB absorbers to shield your paint from all the sun’s harmful rays. The formula combines high-grade carnauba wax and sealant polymers to give you outstanding shine and protection.
If you want something OTC, try Elevo Watermark Remover.. You can get this from TruValue and other hardware stores. It's very effective but may require some elbow grease to use.





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