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Old 05-27-2022, 05:15 PM   #1
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Streaks in my Rv fiberglass body.

Tried washing my Rv with different
Solutions such as simple green,dial dishwashing soap. Can anyone give me tips on what else I can use.
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Old 05-27-2022, 05:33 PM   #2
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Washing RV

Some have used Awesome found at dollar stores. Try using a magic eraser sponge. I had yellow streaks from rusty screws in the roof to trim sidewall. My body shop told me to use plain oven cleaner. I would do a test spot and rinse fairly soon. Don't use oven cleaner with Lemon. Use a spray oven cleaner. Hope this helps you.
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Old 05-28-2022, 10:10 AM   #3
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We’ve used Sno Bowl toilet cleaner not only on our RV but also our sailboat. Please remember to use gloves and eye protection. Don’t leave it on too long before rinsing it off maybe 5-10 minutes.
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Old 05-28-2022, 12:00 PM   #4
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Quote:
Originally Posted by gallowm View Post
Tried washing my Rv with different
Solutions such as simple green, dial dishwashing soap. Can anyone give me tips on what else I can use.
More details needed. Are you ending up with streaks from washing? Are streaks appearing after it rains? Are there streaks that can't be removed by washing with the above products?

Knowing what you mean will help with a solution.

Keep in mind the more aggressive you get with a cleaner, the more chances you'll remove any wax, get too aggressive and you'll damage the surface. My#1 rule when working on any type of unknown stain is: "First do no harm." I've seen way too many professionals try to nuke the stain with the strongest chemical on their shelf, taking the surface of the paint away with the stain. Once you've damaged a surface, there's no going back. That's why a lot of cleaner say on the label - test in an inconspicuous area first.

If you have white streaks appearing after a rain, it's a sign your roof may need attention. As EDPM rubber ages it chalks, and small amounts gets carried away by rain. Same with aging fiberglass roofing.

If you have white streaks that don't come off with regular washing it could be dried minerals, or if there's aluminum trim above the streak, it's aluminum oxide - aluminum rust.

Dried minerals and oxides respond best with an acidic cleaner. This can be as simple as lemon juice or vinegar. Be aware acidic cleaners can etch unprotected aluminum. Steaks from road grime or roofing steaks may respond better to degreasers or detergents. Degreaser will also remove any wax. If you only have a few streaks work on them directly. If it's vertical surface, spray or wet the rag with the solution, especially with strong stuff. If larger areas keep a hose at the ready close by to rinse. Beware of strong solutions running down the surface.

Note, in both cases, no cleaner is going to stop the streaks from reappearing because you are only dealing with the symptoms.

Hope this helps.
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Old 05-28-2022, 09:56 PM   #5
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Thanks for the tips !!
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Old 05-29-2022, 09:46 PM   #6
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Once you have the streaks removed use a good ceramic coating such as Mothers CMX. I'd also purchase some 3M J channel striping to run down each side from front to rear. This will channel the water from the roof towards the front or rear rather than down the sides causing the black streaks. Works great!
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