Our 2013 Sundance which we just purchased has tons of black spots on the exterior fibreglass walls that look like mold?. Any and all suggestions on how to properly clean the rv exterior and seal or wax? It is appreciated, thx, greg
Last week I was washing and waxing my rig when I noticed that the white plastic corners on the slides had black spots that didn't wash or wax off.
I used some spray cleaner that I got at Wal-Mart. It's called All Purpose Cleaner With Bleach. Took a couple of applications on the worst areas but it did remove the black stuff. Rinsed well with water.
That's one option for you.
Spot clean in a non visible area to check compatibility.