Getting off black streaks

[d1h]

Why do black streaks form so fast and are so hard to get 100% off? Got a 6 month old fiberglass TT and black steaks mostly wash off but you can still see a faint shadow. Even tried a magic eraser. They are on the plastic trim too. Want to keep it looking new but seems very hard to do. Anybody found anything that actually works that's safe on decals?

[rmilty153]

My RV was super dirty and I tried everything.  My wife comes out and uses a magic eraser takes everything off made it look Great.  I had tried Meguiars, crud cutter, soap and water but I 100% recomend trying magic erasers they work great. I buy the 50 pack off amazon. 

[rac4348]

I've used Camco's Black Streak Remover.  Available in the RV Aisle in Walmart or online at Amazon.  Spray and wipe.  The window seals on my previous RV streaked constantly, this was the only product that seemed to work without a lot of elbow grease.

https://www.amazon.com/Camco-®-Pro-Strength-Streak-Remover/dp/B01B3PIATS/ref=sr_1_5?crid=3K7Q42JGWFH4F&dib=eyJ2IjoiMSJ9.QP53S3K-f_XKPxLQkhclRVysyH9cAnCgEWkV3ODt85vQe1gYtuo2xBIrX7m75jOogS_hu8GX3M1HMZNCf5j0_EQaodrz3plCTH9n6wCHKNGBwprqpT_xuPbBu2G6m07BoM6AH4_zM0A_-SqErXNjMB2dPsmM5866QLfadGCRa8rcEv5H5a7YrZ6wIi2CO4LZ1ka142qEfnHSiJjsSaD9R-GX4FoIwvix19LTH6SOFC_boxl4_IwrEhvw9o46NhLmuuIggwC_Gbtmqbb2lU4N2sv2JYCeEaDdqVJ_tgBcgyw.xClxupzbSjF5RRyNQqQuB7ftlNPGZ6KO2bSWPqeQhT8&dib_tag=se&keywords=camco+black+streak+remover+for+rv+camper&qid=1715192960&sprefix=Camco+Black%2Caps%2C166&sr=8-5

[Latner]

I've had good luck with Meguiar's Cleaner Wax - Paste Wax