Removing Waterproofing Substance from Siding

[cesmart6]

A couple of years ago a person rubberized the roof on his RV that was parked next to mine. When I discovered that he had splattered the substance onto my unit, the substance had dried.

A long interchange with the insurance company ensued. Not long after, we moved the unit to a safer storage area. The substance has not yet been removed, though.

Some tiny spots will buff off with a soft cloth, but the larger splotches seem impervious to gentle methods of removal. Is there are method I can use to get the spots off without endangering my siding?

Thanks.

2015 Crossroads Longhorn 320-QB

P.S. I'm still not a weekend camper! Full-timer! Now in Florida

[mark5w]

You can try a product called "Goof Off". https://goofoffproducts.com/
Not sure it will work, but worth a try.

[Papa-T]

I’ve used goof off before but not on a camper. Try on a small area first.

[sleepyT]

cesmart6
Try WD40 the original...I use it for removing tar & bugs from my car and truck, it might remove the substance you are trying to remove...

[Lloyd]

Originally Posted by sleepyT

cesmart6
Try WD40 the original...I use it for removing tar & bugs from my car and truck, it might remove the substance you are trying to remove...

Same here. You might have to let it soak for awhile.
I had some pine sap that hardened on my truck before I got to it. Tried WD-40. denatured alcohol, paint thinner, finally went to lacquer thinner and let it penetrate. It took it off and didn't harm the finish. Did have to re wax that area tho.

[cesmart6]

Thanks, everybody. I just read that WD40 can be used to help with the removal of those decals, too! I will try it on the drips!