My 2019 Alpine 5th wheel is exhibiting some signs of wear in the Darco. It was new in Apr 2018. Here is a picture under the passenger side. I have washed it off, so it’s not dirty. Normal Darco is black with no sign of wear.
. The second picture is the drivers side slide. It has the beginning of wear on it too.
Feel free to pass these to Keystone if it might help the effort.