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Topic: Mold on fiberglass? (Read 760 times) previous topic - next topic

Mold on fiberglass?

Is this possibility mold? If so, can it be removed?
Christine & Jimmy
Nomadic, Full-time Life in Progress...
1997 U295/36/C8.3
600 AH BB-LiFePo/1080 Watts Solar
2020 Jeep Cherokee Trailhawk
** Social media: curiosity-in-motion

The cure for boredom is curiosity. There is no cure for curiosity. ~Dorothy Parker~

Re: Mold on fiberglass?

Reply #1
Are you sure that you have mold? 
Have you been around a hackberry/nettle/Celtis tree? If so it could be from them.
Either way try a microfiber towel with vinegar.

In your second pic. what is that in the right lower corner that looks like something pealing off?  If this is some kind of coating then you may have something bleeding through.

Pamela & Mike
Pamela & Mike 97 U 320

"It's not what happens to you, but how you react to it that matters."

Re: Mold on fiberglass?

Reply #2
Kinda looks like oil.. try some degreaser and see if it comes off.. if it is mold do 10-1 mix of bleach and that should kill it.. or was it 8-1 mix..

Just a guess though

Re: Mold on fiberglass?

Reply #3
Nothing is peeling! Think that just a streak from me cleaning the area!
New to us coach, so I am not sure what it been around!

It doesn't smear, so I don't think it's oil/grease, but I'll try cleaning it again. Vinegar and water solution did not work.
Christine & Jimmy
Nomadic, Full-time Life in Progress...
1997 U295/36/C8.3
600 AH BB-LiFePo/1080 Watts Solar
2020 Jeep Cherokee Trailhawk
** Social media: curiosity-in-motion

The cure for boredom is curiosity. There is no cure for curiosity. ~Dorothy Parker~

Re: Mold on fiberglass?

Reply #4
Have you tried a fiberglass polish? 
2014 ih45  (4th Foretravel owned)
 1997 36' U295 Sold in 2020, owned for 19 years
  U240 36' Sold to insurance company after melting in garage fire
    33' Foretravel on Dodge Chassis  Sold very long time ago

Re: Mold on fiberglass?

Reply #5
Or just any polishing compound.
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: Mold on fiberglass?

Reply #6
Have not tried a compound. Wasn't sure what I was dealing with!
Will try that next.
Christine & Jimmy
Nomadic, Full-time Life in Progress...
1997 U295/36/C8.3
600 AH BB-LiFePo/1080 Watts Solar
2020 Jeep Cherokee Trailhawk
** Social media: curiosity-in-motion

The cure for boredom is curiosity. There is no cure for curiosity. ~Dorothy Parker~

Re: Mold on fiberglass?

Reply #7
The gel coat (assuming it is still the OE gel coat is thick enough that you will NOT wear through it with polishing compound.
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: Mold on fiberglass?

Reply #8
I use Bar Keeper's Friend on our coach with great success.  It will remove the most stubborn stains without harming the gel coat.  I DO NOT use it on the decals, nor would I use it on a painted surface.  But for the original gel coat, it is excellent.  Powder or "soft" liquid - both work equally well.

In the Garage | How to Use | Bar Keepers FriendĀ®
1993 U280 SE 40' WTBI, Build: 4359
C8.3 300hp, 6-Speed, Exhaust Brake
960 watts on the roof (6 x 160)
Sorento (or BOLT) on a Kar Kaddy SS
"Nature abhors a vacuum"

Re: Mold on fiberglass?

Reply #9
If it is mold/mildew bleach and water will do the trick.
John
John and Stacey Smith
Motorcade NO: 11973
1997 U295 CSGI 40'..Build No. 5036     
920 Watts on the roof..CAT Power w/fuel Inj. Programmer
2021 GMC Sierra AT4 1500
EX..2015 Jeep Wrangler Sahara
Ex 1990 U280 RSAI 36'..Build No. 3638

 

Re: Mold on fiberglass?

Reply #10
We like Clorox Clean-Up.  Works really well as it's a detergent with bleach.  Cleans the Corian beautifully.  Leave it a stubborn stain for a few minutes and most will come out.

Keith
Keith, Joyce & Smokey the Australian Cattle Dog
1995 U320 SE Extreme 40' WTBI Build # 4780, with a Honda CR-V hopefully still following behind.
Motorcade # 17030
FMCA # F422159