I just had new white aluminum gutters put on my house. In the lowest crease of the K there are some small places repeated for a few inches every foot or so where the white finish has been sc****d off along the length of some of the gutters and the aluminum shows. They made the seamless gutters on site. Are these areas likely to enlarge with time? They aren't visible from ground level but they can be seen if you get up close. Do I need to request that the gutters be done over? The installer said that it only occurred with the 1st roll of aluminum. Some of the gutters are OK.