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Topic: Spots on coach exterior (What is it?) (Read 414 times) previous topic - next topic

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Spots on coach exterior (What is it?)
Before leaving on our trip to Door County Wisconsin we washed down the coach.  When cleaning the roof I noticed some spots that looked like bird droppings close to the Hadley's on the passenger side.  I figured a bird was sitting on the horn and...

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  • Last Edit: September 12, 2019, 08:45:10 am by Michelle

  • John44
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Re: Spots on coach exterior (What is it?)
Reply #1
In South TX Mesquite tree sap will do that,any chance it's sap from a tree?

  • nitehawk
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Re: Spots on coach exterior (What is it?)
Reply #2
John, try soaking the spots with WD-40, then wipe off.

  • John44
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Re: Spots on coach exterior (What is it?)
Reply #3
Looks like he already got them off,along with his gelcoat.

  • Pyolet
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Re: Spots on coach exterior (What is it?)
Reply #4
They look like a previous gelcoat chip repair job to me.

Re: Spots on coach exterior (What is it?)
Reply #5
it looks like previous repairs to me.   Annually, I will walk the roof and coat anything that looks like a crack, chip, anything that may have penetrated the gelcoat and clean and cover it with Dicor self leveling sealant. This will prevent any...

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  • Pyolet
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Re: Spots on coach exterior (What is it?)
Reply #6
Dicor will work, but there are products out there that will work better, last longer, and be easier to remove later. 

https://www.homedepot.com/p/Aquatic-Gelcoat-Repair-Kit-in-White-35RKWH/100177610

I've used this to repair a few dings on the...

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  • John Haygarth
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Re: Spots on coach exterior (What is it?)
Reply #7
Definitly someone tried a quick repair fix before withall the wrong stuff.
If it peeled off then it did not bjnd with the original gel coat.
JohnH

  • Pyolet
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Re: Spots on coach exterior (What is it?)
Reply #8
Prep is everything.

Definitly someone tried a quick repair fix before withall the wrong stuff.
If it peeled off then it did not bjnd with the original gel coat.
JohnH


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Re: Spots on coach exterior (What is it?)
Reply #9
Was it where one of the antennas were

  • John44
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Re: Spots on coach exterior (What is it?)
Reply #10
Even if it was aquick repair something still made the spot to begin with.

Re: Spots on coach exterior (What is it?)
Reply #11
John Morales,  are they something new? You've had that beautiful coach for some time now and surely this isn't the first time you washed the roof.

Re: Spots on coach exterior (What is it?)
Reply #12
T-Man,
This is new,  never had this before.  They are like blisters.  I was told that it could have been done by a near by lightning strike. A lightning strike can cause any moisture trapped in the fiberglass to vaporize resulting in similar...

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Re: Spots on coach exterior (What is it?)
Reply #13
Wow!

Re: Spots on coach exterior (What is it?)
Reply #14
They are not blisters. Blisters are moisture trapped under the gelcoat, that has acid building up in them and causes it to cause a cavity to form. I don't think you can have a blister without it being in salt water. Blisters are unheard of above...

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