When I apply the brakes the pedal feels hard and requires some strength to stop the car. I'm actually going to go out for a road test again and think about how the pedal feels to be sure. After reading your post, I feel like I'm not sure. I'll confirm and repost.
The discs were cleaned prior to installation, because they did have that preservative that your talking about and it was also mentioned on the instruction sheet that came with them.