303 Products Black Streak Remover - Removes Black Streaks and Dirt, Eco-Friendly, Provides A Clean, Streak-Free Finish on RVs, Campers, Pop-Ups, Motorhomes, and Boats, 32oz (30243)

Had some nasty streaks on motorhome thus removed them had to use it with quite a bit of soaking but came up a treat

Highly recommend this stuff. It’s the best I’ve found for removing the black streaks from my camper van

I've had an RV since 1998 its fiberglass. Black streaks are always an issue obviously on lighter colors. The stuff 303 works. If you don't wash your vehicle regularly and you expect this to work after years of neglect well good luck with that. But if you maintain your vehicles this will definitely get out the black streaks. Some water stains can't be taken out except for maybe with a buffer. But this does what it's intended to do. And don't forget to rinse it off after. Very impressed, thought I'd take a shot at it .Ive have black streaks in some spots for years that I've almost gotten used to now it looks like a brand new vehicle. Any negative reviews don't make any sense to me.

I wasn’t expecting this to work so I didn’t take before and after pics but wish I had. This stuff worked great! I left it on much longer than the 2-3 minutes suggested (more like 20-30 minutes) and the streaks just came off with the washing brush. No scrubbing, just passing over it with the brush and they’re gone. Totally recommend!

I love 303 Aerospace protectant, I put it on everything especially my old Honda Element with lots of body plastic panels. So I was relying on 303 to come through in this too. It is OK. The dark streaks on the side of our small RV travel trailer are very annoying. The dark black Butyl sealant use all over it constantly leaves dark drips on the sides. This cleaner does help but works just as well as may other household cleaners including some home concoctions from white vinegar and dish soap. I will use this up and perhaps try another brand in the future to compare them. But I do trust 303 products and will definitely slather some 303 protectant on after I use the cleaner.

Seller ships very quickly, great product and great communication after slight shipping carrier snafu. Seller quickly resolved issue and I will definitely be a return customer! A++++++ 5☆