Ideal handling advice is to hang it and not fold it though you can use a cool non-steam iron on the reverse if required. (NB: A benefit of Chromatte is that it can handle creases.) If it is to be stored then it should be rolled up and kept in a dust free container. Store above 5 degrees and below 25 degrees, in a cool and dry environment. Use a soft 'clothing' brush to remove any dust marks.