67/68/69 cuda dilemma

kursplat said

ever try a nylon cup brush? makes a mess but it tears right though the under coating they used and leaves nice clean metal

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Yup, I have. It works great but leaves a dusty mess, and you want a respirator on while using it. Not a great option in 100° weather. Scraping it off with a torch, then wiping down is a mess as well, but minimal dust.