Re: fiberglass textured deck repair questions
The tiny diamonds pattern you are describing is called molded non-skid. Yes, in a simplistic way, you would need to either sand it smooth or fill the tiny cavities and sand some more, depending how much "wear" you've got. After that you'll need to paint the deck where the non-skid will not be applied. The third step is to mask, sand then apply the new non-skid.