Understanding Matrix Glazing & Re-Sharpening
Glazing is a temporary metal bond condition, not a permanent blade failure. Dressing re-sharpens the diamond rim in seconds.
Direct Answer: Diamond blades lose their cutting edge ("glazing") when cutting hard, dense, non-abrasive materials that do not erode the metal bond matrix. The exposed diamond crystals wear flat while the metal bond holds them fast, turning the blade smooth. Restore cutting speed instantly by dressing the blade: make 3 to 5 shallow cuts into an abrasive material (cinder block, soft brick, asphalt) to strip the worn metal bond and expose fresh sharp diamonds.
Glazing is a temporary metal bond condition, not a permanent blade failure. Dressing re-sharpens the diamond rim in seconds.
Make several cuts into a soft abrasive cinder block or brick to strip the glazed metal matrix and expose sharp diamond grit.