Fibreglass

[gmcsierra]

Does carnauba wax turn fibreglass yellow?

[Niblick]

I would think its quite possible, particularly if the wax has a color dye in it

[GenesisCoupe]

My marine quick wax sprays are often very white in color unlike yellowish when using car quick wax sprays so possibly.. Maybe just very very light?

[swanicyouth]

Fiberglass cars? No. There would be a lot of yellow Corvettes driving around...Boats? No idea what your dealing with there.

[gmcsierra]

Dealing with an RV

[GenesisCoupe]

I doubt u will see any yellow

[primo spaghetti]

if the wax is yellow, and there is alot of porosity, and you dont get the wax out....possibly....

[Lakeside Detail]

I tried D300 once on a white boat and it turned the area pink, product is pink. I tried everything to get it out but no luck, finally I tried a orange pad soaked in eraser and that worked great.