Like everyone says it all comes down to how much material/Clear is on the car. Here at BOS We start with 600/800, 1000, 1500,2000,2500,3000 and then compound/polish. But your painter should know if he's comfortable using 600/800 b4 he dives into it as you can get yourself in trouble pretty fast. Goodluck
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67' El Camino: 468BBC, TH400, Grocery Getter
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