T top channel
Do you need to get all the black spots out?and is the dupont brand better than the por 15 acid, and the naval jelly? I,ve used a die grind but to many small pits, also tried wire brushing it in while it was wet. I'm using a cheap sandblaster tried a few different grits. Pisses me off because I have a large industrial sandblast cabinet right next to it, and it doesn' t do me any good on this project.
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