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03-06-2015, 04:34 AM
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#1
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Winnebago Owner
Join Date: Jul 2012
Posts: 122
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How to get rid of black spots in the fiberglass sides??????
2001 Winnebago Adventurer.
My Question.....
The sides on my MH has black "spots" which seem to be embedded in the fiberglass.
I have used a Magic Eraser in the past to clean the fiberglass. I does some good but the spots are still there and come back over time.
I keep my unit clean and waxed but I would like to know how to get rid of this defect.
I have been told about trying a coarse plastic scrubber and Soft Scrub to clean it.
I want my unit to have a clean look, not spotty.
Thanks for your time to reply.
__________________
2001 Winnebago Adventurer 32V, Ford F-53, V-10
2008 Jeep Grand Cherokee Limited, 4.7L V-8 QTII
U. S. Army Vet, In God We Trust
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03-06-2015, 04:48 AM
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#2
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Winnie-Wise
Join Date: Aug 2009
Posts: 307
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Here's a link to previous threads that dealt with this. Hopefully you'll get some tips there.
https://www.google.com/search?q=Blac...com&gws_rd=ssl
__________________
[SIGPIC][/SIGPIC]
Cliff,Tallulah and Buddy ( 1999-2012 )
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03-06-2015, 09:39 AM
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#3
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Winnie-Wise
Join Date: Sep 2013
Posts: 442
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Meguires #50 RV Marine cleaner wax.
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Manny and Larissa
2013 Winnebago 2301BH-Red
2012 Ram 2500 Megacab HO CTD
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03-06-2015, 10:10 AM
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#4
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Winnebago Owner
Join Date: Jul 2012
Posts: 122
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UPDATE:
I have tried all kinds of abrasives and none of them have removed the spots.
So, today I put a little Clorox on a cloth and wiped over a small area with spots.
The spots were immediately oxidized (bleached) and my finish is perfectly clean (except for the normal "microcracks" in the gel coat.)
I then wiped with a cloth w/ water.
Then I put a coat of wax on and it looks great.
QUESTION: Does anyone know if the gel coat will be affected by the Clorox?
I hope there is a chemist type person who can answer this.
Please advise with any thoughts that you may have.
Thanks for your consideration.
Paul
__________________
2001 Winnebago Adventurer 32V, Ford F-53, V-10
2008 Jeep Grand Cherokee Limited, 4.7L V-8 QTII
U. S. Army Vet, In God We Trust
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03-06-2015, 06:54 PM
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#5
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Winnebago Master
Join Date: Aug 2001
Location: North America somewhere
Posts: 2,108
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I've added bleach to my RV and car wash soapy water for many years, never noticed any adverse signs of use. I add ~2 oz bleach to 5G water + car wash soap. It removes mold and mildew spots from plastic trim and awnings too. Be sure to rinse thoroughly, especially awnings.
__________________
2000 Winnebago Ultimate Freedom USQ40JD, ISC 8.3 Cummins 350, Spartan MM Chassis. USA 1SG, retired;PPA,Good Sam Life member,FMCA. "We the people are the rightful masters of both the Congress and the Courts - not to overthrow the Constitution but to overthrow men who pervert the Constitution." Abraham Lincoln
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03-08-2015, 06:08 PM
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#6
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Winnebago Owner
Join Date: Jul 2012
Posts: 122
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STATUS REPORT:
I made a ~40% solution of Clorox and applied it to the "spotted" gelcoat.
Almost immediately the spots were oxidized and the surface was cleared of all spots and looked as close to new as possible.
I quickly rinsed the surface and waxed with McGuires wax.
I never had a shine like this and the surface looks like new.
I am about 75% completed.
I will try to get some close up pics and post later.
__________________
2001 Winnebago Adventurer 32V, Ford F-53, V-10
2008 Jeep Grand Cherokee Limited, 4.7L V-8 QTII
U. S. Army Vet, In God We Trust
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03-09-2015, 09:29 AM
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#7
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Winnebago Master
Join Date: Nov 2005
Posts: 1,080
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We've used this product on the shower in the motorhome and in the bathroom in the stick house.
X-14 The Bathroom Cleaning Expert: X-14 Mildew Stain Remover
It does a great job, however I would try it in an inconspicuous spot to make sure it works before applying it in large quantities. It works fast enough that you can watch the spots melt away.
Be sure not to touch any clothing on the sprayed surface. You won't notice anything until you wash the article in the laundry. Then you'll see where the color has disappeared every place the liquid made contact. I now have a spotted grey and white shirt as a result of touching the wet surface.
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Hikerdogs
2013 Adventurer 32H
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03-10-2015, 04:17 AM
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#8
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Winnebago Owner
Join Date: Jul 2012
Posts: 122
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Quote:
Originally Posted by Hikerdogs
We've used this product on the shower in the motorhome and in the bathroom in the stick house.
X-14 The Bathroom Cleaning Expert: X-14 Mildew Stain Remover
It does a great job, however I would try it in an inconspicuous spot to make sure it works before applying it in large quantities. It works fast enough that you can watch the spots melt away.
Be sure not to touch any clothing on the sprayed surface. You won't notice anything until you wash the article in the laundry. Then you'll see where the color has disappeared every place the liquid made contact. I now have a spotted grey and white shirt as a result of touching the wet surface.
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Thanks for the info.
I did some checking on the X-14 as well as Chlorox.
The active ingredient in X-14 is sodium hypochlorite at a concentration of 3 - 6 %. (This is the bleach that turns things white).
The active ingredient in Chlorox Bleach is also sodium hypochlorite at a concentration of 5 - 10 % (other minor chemicals are also present)
So, if I make a 40% solution of Chlorox Bleach, I have the active ingredient sodium hypochlorite at a concentration of 2 - 4 %.
When I applied this, there was an immediate visible reaction and the spots were completely gone in less than 1 minute. I ensured that the surface was kept "wet" by continuous wiping.
After the reaction was complete, I wiped the surface with clean water several times to remove any of the cleaning chemical.
When dry, I applied a coat of paste wax.
The surface looks like new and is back to a clean white appearance.
As soon as I transfer some photos from my phone to my computer, I will post them in this thread.
__________________
2001 Winnebago Adventurer 32V, Ford F-53, V-10
2008 Jeep Grand Cherokee Limited, 4.7L V-8 QTII
U. S. Army Vet, In God We Trust
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03-12-2015, 06:20 AM
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#9
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Winnebago Owner
Join Date: Jul 2012
Posts: 122
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Photos of before / after treatment.
__________________
2001 Winnebago Adventurer 32V, Ford F-53, V-10
2008 Jeep Grand Cherokee Limited, 4.7L V-8 QTII
U. S. Army Vet, In God We Trust
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03-12-2015, 06:28 AM
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#10
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Winnebago Camper
Join Date: Apr 2001
Location: East Tennessee
Posts: 9
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Thanks! I needed this answer too.
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JayGee
Foothills of the Smokies
2005 Bounder 35E
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03-13-2015, 08:27 PM
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#11
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Winnebago Master
Join Date: Aug 2001
Location: North America somewhere
Posts: 2,108
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X 14 mildew stain remover, by WD-40, MSDS. Like winne said, it is bleach, as in Scrubbing Bubbles and almost all such mildew and mold removers.
__________________
2000 Winnebago Ultimate Freedom USQ40JD, ISC 8.3 Cummins 350, Spartan MM Chassis. USA 1SG, retired;PPA,Good Sam Life member,FMCA. "We the people are the rightful masters of both the Congress and the Courts - not to overthrow the Constitution but to overthrow men who pervert the Constitution." Abraham Lincoln
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03-22-2015, 05:25 PM
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#12
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Winnebago Watcher
Join Date: Feb 2010
Posts: 1
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Did you notice any difference in the decals? Discoloration, or fading?
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2001 Winnebago Journey 32T
5.9 Cummins
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03-25-2015, 05:03 AM
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#13
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Winnebago Owner
Join Date: Jul 2012
Posts: 122
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Quote:
Originally Posted by dcharvey
Did you notice any difference in the decals? Discoloration, or fading?
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I was very careful to note any problems with the decals and paint.
There was absolutely no effect on either.
Note: I was sure to wash off each area that I cleaned with clean water. Also any drips or runs were washed. Apply the Clorox with a very damp cloth, not saturated so it will drip/run.
I noticed that I had to treat the area where the decal meets the gel coat.....that slight ridge where there was discoloration that had to be removed.
My unit still looks white and clean.
It is best to test each application before beginning the cleaning.
__________________
2001 Winnebago Adventurer 32V, Ford F-53, V-10
2008 Jeep Grand Cherokee Limited, 4.7L V-8 QTII
U. S. Army Vet, In God We Trust
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03-25-2015, 05:53 AM
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#14
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Winnie-Wise
Join Date: Jan 2013
Location: Michigan, NE of Hell
Posts: 258
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Great thread! I intend to do the diluted Clorox thing, too! Thank you so much!
Scott
__________________
2003 Winnebago Adventurer 35U, 8.1 W-22, TruCenter
Fly R/C Helicopters
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03-26-2015, 05:16 AM
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#15
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Winnebago Camper
Join Date: Jul 2014
Location: Alabaster, AL
Posts: 46
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I use a solution of 1 part bleach, 1 part white distilled vinegar, and 2 parts water. I keep it in a spray bottle for touch ups. I also used it to succesfully remove some ceiling stains on my previous coach. It had that white cloth material on the ceiling.
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Jerry & Susie, Alabaster, AL
2006 Itasca Horizon 40KD, 2014 CRV, Blue Ox
2017 Harley RoadGlide Ultra
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