I looked the Menzerna site and it appears to only be super high quality polish / compounds, no protection. I have used this product http://aerolon.com/tech-shine with good protection and minor cleaning results for 3 years on 2 back cars and the bus. Give it a shot and I think you will like. Beads water like crazy,
Thanks,
lunch surfer
Mandalay 40e
Traveling USA looking for the best bike trails and campsites.