Save changes on material at runtime

I'm using code below, it works on editor, when I change color in play mode the color persist even I quit play mode.
The problem is if I deploy to mobile it changes color but resets to original when I change scene or quit.

Code (CSharp):

1. Material mat = Resources.Load("Materials/"+Selected, typeof(Material)) as Material;
2. mat.SetColor("_Color", clr);