Prop wear

Apr 11, 2009
46
Hunter 31 Thunder Bay
I hauled out today and noticed about 1/8 to 1/4 inch wide, a strip around the prop blades that is a bit rough, similar to fine sand paper. Is this normal wear, or any idea what could cause this. It is a fixed pitch prop.
 
Aug 19, 2015
6
West Wight Potter 19 Bar Harbor
I have that on my new Tohatsu OB prop. Got me. It was only in water, and only for about 2 hours.