I just finished repairing a custom 68 gallon aquarium. It was my first adventure into it and learned a lot. I used 600, 800, 1000, and 2000 grit sandpaper progressively in that order and finished by buffing it out. I used a buffer wheel that attached to my drill and Mother's brand plastic polish. Pics attached... In the one pic, you can see the before and after very plainly.
Sent from my iPhone using MonsterAquariaNetwork app




Sent from my iPhone using MonsterAquariaNetwork app



