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Old 05-22-2019, 08:03 AM   #21
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Originally Posted by Vince and Charlette View Post
Diamond Shield which makes the clear shield over the paint on my Berk recommends only one product: Maguiars. It works great and thoroughly removes black streaks. Thankfully, it's available at WalMart.
Which Meguiar's? There are so many.
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Old 05-22-2019, 10:39 AM   #22
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I've had great luck with this. Purchased online.Click image for larger version

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Old 05-22-2019, 07:31 PM   #23
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Originally Posted by Philkaty View Post
Which Meguiar's? There are so many.
Meguiar's Ultimate Quick Wax is recommended for autos and RVs and is applied and buffed with two separate microfibre cloths. One great advantage is that it doesn't require water unless your camper is really dirty or muddy. It's most convenient in a campground where washing an RV is strictly prohibited. I use it to clean the bugs off the front and hit the black streaks after arriving. Bugs are best taken care of as soon as you can get to them. I've heard that many bugs contain an acid chemical that make them stick harder the longer they're on.
Really high-end paint manufacturers will tell you to stay away from anything with petroleum. Be careful about all the recommended home brews. Dish washing detergent and general purpose spray cleaners are cheap solutions that can wear away the surface film or produce micro-scratching. Generally, you get what you pay for. If I'm going to pay a lot for my camper, I'm sure not going to go "cheap" on a cleaner. Happy camping.
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Old 05-22-2019, 09:09 PM   #24
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Best bug remover I ever saw...

Bugs be gone

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Napa did carry it. I think stores have this cheaper...they even make it in 55 gals.
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Old 06-23-2019, 10:32 PM   #25
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Just tried the LA's Awesome didnt work for me at all. Sprayed down with simple green and it all washed right off
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Old 06-25-2019, 07:59 PM   #26
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Living in the deep South with rainfall over 60" per year I learned from other campers the black streaks on my fiberglass were actually stains from a black mold. The stains were there when I bought the then 17 year old RV which had sat under a carport most of its life. Other than that the gelcoat looked new so I didn't think they'd be a big problem. Even using an electric buffer with rubbing compound would not remove them. I tried 2 of the expensive brands of mold/mildew remover with no success. I then sprayed Walmart Great Value mold/mildew remover on a 6' section, waited 15 minutes, and what little was left just wiped off. I immediately hosed it down since it does contain bleach. After using wash and wax it hadn't hurt the shine and that was 5 years ago. The decals still look new. I use Blue Coral wash and wax mixed way stronger than recommended every 6 months and the black streaks come off with no effort at all. It still looks and shines like a new one in-between washes. Just my experience your mileage may vary.
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Old 08-05-2019, 04:12 PM   #27
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I just tried a Totally Awesome based on reviews here. Have to say it did remove black streaks but also all the wax, immediately. This was the pre diluted mix. It appears the black streaks are on top of the wax which makes sense. I tried another area with a good wax/cleaner and it took them off without removing the older layers of wax like the Totally Awesome product did. I think Iíll stick with the wax/cleaners and a good wash.
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Old 08-24-2019, 08:26 AM   #28
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Originally Posted by KEliasz View Post
What's the best way to get the black streaks off the RV? Tried washing her yesterday with normal car wash soap but black streaks are still there. I dont want to go with too harsh a chemical like bleach
They make a black streak remover... But
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Old 08-24-2019, 08:43 AM   #29
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Use to use I posted early on this thread, then I discovered "IBIZ Everything Wash and Wax." WOW !!! It's pricey, but I use it on TT, both cars and it did a number on the black streaks on the TT.
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