Starbrite works real good but make sure to wear gloves and wash it of the trailer quickly.
This stuff WORKS. It's not a spray on. It's a gel and it WILL destroy painted trailers but it works like a charm. I cover my trailer in a trap when using it.
This is true, it ruined my trailer, had to replace all my bunk hardware because it made it rust into dust
Yeah, but if you own a white boat there is nothing better. Wipe on spray off and your done. No scrubbing.
I didn't believe it when someone first told me about it, but it is true. I sprayed the liquid version on the brown water line and could immediately see almost solid white streaks as it ran down the hull. I wear gloves and keep the hose handy to thoroughly wash it off shortly after applying, and I only do one side before rinsing.