Prep below the waterline

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Looking for opinions. I used Meguiar's Hybrid Ceramic Wax (spray on) for my car and the water just beads off - great stuff! I was think how would this work on the hull. I have always been told not to wax below the waterline because the water can adhere to some waxes and slow performance, but I was thinking this may be different and has strong water repellent features. I would love to hear your thoughts!

 

[Hamish67]

I am experimenting with a ceramic coating this year too. From reading the reviews and other materials, I sprayed the ceramic coating on the sides as well as on the bottom paint too. Its not a wax but a hard coating that is very slippery in water. I haven't done much sailing on it yet this year, but will reply once we have been out in it a few times.