Originally Posted by Slowboat 37
I'm not familiar with On & Off, what is it and where do you get it. Thanks.
On & Off by Mary Kate available at any marine supply. It's acid / detergent and may be marked as a teak cleaner. It's great on hulls. I have been whitening my hull with it for years b/4 waxing. If you try to compound your stains out every year, even with white compound, you will go through your gelcoat shortly. My '71 Bruno has not been painted (except transom as mentioned b/4) and the gel coat still looks like new thanks to On & Off, CarNu polish, and no compounding. Granted a N.E. boat.