So yesterday, I was working on the front bumper of my tC with my UDM, using a 4" orange flat pad and M105. I was working on a slightly curved surface, and put some extra pressure on there to try to get rid of some stubborn swirls. To my horror, as I pushed the machine away from that section, a thick grayish/white, opaque layer revealed itself. I shut off the machine and touched the paint there... it was quite hot. I immediately thought the worse, assuming that my pressure along with the very aggressive compound and 4" pad had caused me to burn the CC. :wow: I sat back in horror and pure shock for a couple minutes... It was a terrible feeling.
I reached for the clay, which did nothing. But then, as i was wiping off (I was angry and you should step away for a little while when something like this happens), I accidentally nicked the "burned" paint with my fingernail. To my surprise, I saw the deep black reflections underneath where my nail had scratched. I took a look at my orange pad, to find it was somewhat torn up in the center (second use on this pad... I clearly killed it with my extra pressure in the last few seconds of polishing). It was also separating on the sides, and the ink on the velcro was smeared from the heat. I switched out to a white 6.5" CCS pad and a larger backing plate, primed it with some M105 and prayed. I switched on the machine, and after 2 passes, I could see my black paint again! The smeared whitish/gray substance was quickly abraded away. I did a couple more light passes and finished with Menz FP. It looks flawless.
Now, I definitely learned my lesson, and will always be that much more careful with the 4" pad, and even larger ones on any curved surfaces. But being the curious person that I am, I really wonder what that substance was on the paint. It was so thin that my nail would not catch between the paint and the gray area, yet it was completely opaque. Could it be melted foam that was sort of spread on the surface, or some weird reaction that M105 had with the heat? Has anybody else experience this?
I reached for the clay, which did nothing. But then, as i was wiping off (I was angry and you should step away for a little while when something like this happens), I accidentally nicked the "burned" paint with my fingernail. To my surprise, I saw the deep black reflections underneath where my nail had scratched. I took a look at my orange pad, to find it was somewhat torn up in the center (second use on this pad... I clearly killed it with my extra pressure in the last few seconds of polishing). It was also separating on the sides, and the ink on the velcro was smeared from the heat. I switched out to a white 6.5" CCS pad and a larger backing plate, primed it with some M105 and prayed. I switched on the machine, and after 2 passes, I could see my black paint again! The smeared whitish/gray substance was quickly abraded away. I did a couple more light passes and finished with Menz FP. It looks flawless.
Now, I definitely learned my lesson, and will always be that much more careful with the 4" pad, and even larger ones on any curved surfaces. But being the curious person that I am, I really wonder what that substance was on the paint. It was so thin that my nail would not catch between the paint and the gray area, yet it was completely opaque. Could it be melted foam that was sort of spread on the surface, or some weird reaction that M105 had with the heat? Has anybody else experience this?