Another Sticky Dash Issue

nis350

the color of the dash was fine until I cleaned it with water from reading the posts here.

I wiped it with the Meguiars Interior cleaner last night and let it sit for a day, then I wiped it again with a dry cloth. the color is back to normal now without any stickiness, but time will tell if it'll get sticky later on. However, I prefer the little stickiness than the greyish color dash.

I am a little puzzled as to where/how the greyish color come about.