Choose between one or two segments (buttons or bars) depending on the machine weight – use one-seg tools with grinders under 25″, and two-seg tools with grinders over 25″.
Fewer segments cut faster, whereas more segments create more surface contact and allow for surface refinement with less scratches.
Grinders with 13″ heads should be loaded with 18 tools, i.e. 6 pcs/head.
Grit range: 14, 30, 50, 70, 120. To expose medium to large aggregate, you can start with 30 grit metals. For small to medium aggregate start with 70 grit metals. For salt and pepper – 120 grit metals.
For best results during grinding and polishing, we recommend an overlap of about 1/3 of each pass on the floor.
DIAMOND GLAZING & PREMATURE WEAR
Soft concrete is very abrasive and will wear out your diamonds faster. You should use a harder bond, so it can last longer.
Hard concrete requires a soft bond tool to avoid diamond glazing, where tools just slide on the concrete surface (not enough abrasion to keep the diamonds open). In this case, switch to a softer bond tool, or try adding water or an abrasive such as sand to open the diamonds.
