Review on 🔧 Permatex 80036 Valve Grinding Compound: Precision in 1.5 oz. Gray Package by Donnie King

I bought this paste to sharpen the blades on an old drum mower. After cleaning, I adjusted the blades so they were close enough to the mower to scrape it as it turned, applied an abrasive paste to the edge of the blades, and then sat for a while spinning the wheels. With each pass of the blades, the abrasive compound sharpened the blades as they hit any part of the mower. It worked so well that very little was applied to each blade.