Make it shiny again
Once a star crack in the windshield is filled with UV-resin and covert with Impact-Filler. The razor blade removes excess material after curing. The remaining surface of the Impact-Filler is scratched and noticeable from the inside and outside of the vehicle. To get the cured surface shiny again this polisher mounted in the 12v drill in combination with plastic polish makes it a smooth and hard to notice windshield repair again.