On my last day of the season at Mt. Baker Friday the snow at the very bottom of the mountain was in terrible shape. Because it had melted away the ski area had plowed in snow from other parts of the slope nearby to cover the area at the base (see the picture below). This snow contained all kinds of contaminants from sand to rocks to other unrecognizable stuff that made the snow black/brown. Luckily, you only had to navigate this if you wanted to get to your car or go to White Salmon Lodge. Most people refused to ski on it and were taking their skis off and walking over the garbage. In that spirit, on my final run I skied up to the brown edges, stopped, took my skis off and walked to the car from there.
I must have skied over the brown a bit because when I got home and looked at my bases they were covered with black, sticky glop that was probably engine oil, grease, or hydraulic fluid from the snow cats that were used to push the snow around. Anyway, this thick, sticky, black goo would not come off the bases easily. I tried several ways including scraping, warm water, and dish detergent and water. None worked. I finally got desperate and used a degreaser and it took the stuff right off. It also seemed to dry the bases out so much that I've not seen bases look like that since I was young and didn't ever wax my skis. I took the skis into the shower and rinsed them off really well, put on a layer of storage wax, did not scrape, and put the skis away for the summer.
My question is: Did I damage my bases by degreasing them? If so, what do I do now?