So...this is the first time I washed the TT which has aluminum siding and some of the grey streaks from dirt and I guess residue from the roof, rain etc came off and some did not. I used regular car wash. Im guessing there are probably products better designed for this. Can anyone recommend some?
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2013 Ford F150 Ecoboost
2014 Primetime Avenger 28BHS
We used a mix of simple green, turtle wax car wash liquid and bleach - equal parts mixed in one of those pump up garden sprayers - start on roof and work way off to sides - keep camper wet and do not let it dry before rinsing - amazinf results on roof!! We use a soft brush on a telescoping pole
I just read an article about what causes the black and gray streaks. That is the roof product itself that creates that. it's like a layer (might be a bad term) but the article want on to say that it is common and after a while it will stop when it does you then have to recoat the roof. Most common reason they stated was a dirty roof will deteriorate faster then a clean roof. I for got what they said which was the bad one gray or black. I found it on the internet on rubber or pto roof maintenance. The west marine black streak remover works well on both.
Rockwood #8289 WS 2012
F250 6.0 / Husky 16k
With 4 point leveling system