About 8 years ago I coated my 02 Bounder with Zep floor wax and have since reapplied every couple of years. This year it needs to be all removed due to flaking. I am using ZEP floor stripper and its r...
More than likely the yellowing is from sun exposure and the normal aging of the fiberglass. I stiped off a sun stroked black graphic several years before I started using Zep and there was a stark white shadow where the graphic used to be.