Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×
RV Trip Planning Discussions

Go Back   iRV2 Forums > MOTORHOME FORUMS > Class A Motorhome Discussions
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
Thread Tools Search this Thread Display Modes
Old 05-27-2022, 05:15 PM   #1
Junior Member
Winnebago Owners Club
Join Date: Feb 2011
Posts: 24
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.
gallowm is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free! RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 05-27-2022, 05:33 PM   #2
Senior Member
Join Date: Mar 2021
Posts: 401
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.
Sam 3 is offline   Reply With Quote
Old 05-28-2022, 10:10 AM   #3
Junior Member
Paramour II's Avatar
Join Date: Oct 2021
Posts: 5
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.
Paramour II is offline   Reply With Quote
Old 05-28-2022, 12:00 PM   #4
Senior Member
astrnmrtom's Avatar
Join Date: Sep 2013
Location: Pacific Northwest
Posts: 1,933
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.
Tom and Pris M. along with Buddy the 17 year old Siamese cat
1998 Safari Serengeti 3706, 300HP Cat 3126 Allison 3060, 900 watts of Solar.
Dragging four telescopes around the US in search of dark skies.
astrnmrtom is offline   Reply With Quote
Old 05-28-2022, 09:56 PM   #5
Junior Member
Winnebago Owners Club
Join Date: Feb 2011
Posts: 24
Thanks for the tips !!
gallowm is offline   Reply With Quote
Old 05-29-2022, 09:46 PM   #6
Senior Member
Join Date: Apr 2022
Location: Renton-Highlands,Wa./HB,Ca./Fujieda-Japan
Posts: 598
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!
94 Southwind Storm 28ft - 454TBI w/4L80E
Flight System G-Man 360 generator man (PM me)
1972VWbus is offline   Reply With Quote


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Is there a Good fiberglass body shop in Phoenix, AZ area Mrbrain Monaco Owner's Forum 2 12-10-2015 04:29 PM
Fiberglass Rear lower body fenders and front and rear access doors breaking loose bruce Dixon Winnebago Industries Owner's Forum 2 05-14-2015 05:16 PM
Fiberglass Body Panels bendavid General Discussion 2 11-12-2013 08:22 PM
How to Buff or Wax an 1993 fiberglass body ChrisNiemann General Discussion 8 08-26-2010 06:51 AM

» Featured Campgrounds

Reviews provided by

All times are GMT -6. The time now is 01:52 AM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2023, vBulletin Solutions, Inc.