Sun Protection

I've already covered homemade sunblock for people - this time I'm tackling sun block for boats.  I posted a pic or two on Instagram or Facebook and realized that some people had no idea what the picture was of. I figured it was about time to break it down - who knew boat stuff needed it's own sun protection?

This is the picture that started it all - the new cover for the outboard engine (the small motor that we use to drive our dinghy around):