grit when grinding

[Bsheffer]

When sanding wood, the discussion of grit used to sand is very appropriate. When grinding concrete, are there particular "grits" that you want to use to grind "to"????? I have not yet done my "grind" but I know that once I do, I can tell this question is going to go through my mind in terms of when to stop??thanks

 

[LegacyIndustrial]

The Diamabrush tooling is best at 25.
Generally, 25-50 for concrete prep (for coatings) work, floor and system dependent.

 

[Armorpoxy]

Hi,
Diamond grinding numbers generally run as follows. The smaller numbers are more coarse like sandpaper.

The most course would be a #6 or #18 diamond in metal-bonded tooling. 'Metals' generally stop being made around #200. General grinding would be #40 or #80. At #120 most epoxy will cover the #120 swirl marks. Thin mil coatings may not cover swirl marks below#80.

Once you get into a #200 that continues the 'polishing' process up to #3000. Diamond pads #400 up are usually 'resin' type and not made of metal.

Feel free to email us at [email protected] for more info or clarification. Another note is that

 

[LegacyIndustrial]

As a DIY you will be left with little choice at The Home Depot or the local Sunbelt. Stay between 25 and 50 for effective coatings prep.


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