Micron (µ), Grit (#) & Mesh Conversion Chart

Diamond Polishing Paste Grades:

Micron	Grit	Mesh
0.25	100,000	0-0.5
1	14,000	0-2
3	8,000	2-4
4	5000	2-6
5	4,500	4-6
7	2,800	5-10
9	1,800	6-12
14	1,400	8-20
25	800	20-30
45	325	40-50
90	225	80-100

Why Choose Our Diamond Polishing Paste?

• UK-made & always fresh stock (2-year shelf life)
• Nine micron grades for every stage: 0.25–90µm
• Easy-apply 5g syringe, water-soluble carrier
• Effective on metals, glass, ceramics & gemstones
• From rapid stock removal to a true mirror polish

What Can You Use Diamond Polishing Paste For?

Polishing Glass & Removing Scratches

• Restore watch/optical glass and fused glass edges
• Improve stubborn marks on stove glass
• Smooth and polish sea glass surfaces

Jewellery & Precious Metals

• High mirror polish on silver and gold
• Final finishing after scratch removal
• Ideal for fine detailing and small components

Engineering & Precision Work

• Lapping and pre-polishing of hard metals
• Polishing ceramics and mineral surfaces
• Laboratory/optical work needing ultra-smooth finishes

How to Use Diamond Polishing Paste

Apply the diamond polishing compound with a piece of wood such as a peg, pegwood or a toothpick (for very detailed work), a piece of leather or flexible plastic or one of our felt polishing bobs in a rotary tool.. 

Alternatively, apply to a soft wheel using a canvas belt, one belt for each grade.

The finer grades, such as 0.25µ of diamond paste, will absorb into wool, felt or material, so be sure to apply these with wood, leather or plastic.

• Use on silver: In recent tests, it has been found that using the 8 micron first, followed by the  3 micron and finishing with the 1 micron leaves a wonderful mirror finish to silver.
• Many scientists use the 0.25 micron to give a microscopic ultra-smooth finish and this grade is often used for polishing optical glass
  
• Ideal for removing scratches on: watch glass, glass or gemstones. Try starting with 6 micron (yellow) then 3 micron (green) and so on until the desired finish is achieved. 
• 14 micron paste is excellent as a glass cleaner on stubborn scratches on the glass of Wood Fire Burning Stoves.
• Looking to remove the frosted appearance on sea glass? 45 micron paste will do the trick.
• For glass engraving, use the diamond paste for the final polishing stages, applying a tiny amount to a felt bob or point.
• Use finer grits such as 1 micron to restore and polish jewels or for a superfine polish after removing scratches. 
• Our diamond grinding paste will also restore the shine to fused glass edges.

Diamond paste for polishing is done progressively, starting with a coarser grade, i.e. 6 microns, and then finishing with the 1 or quarter micron grade. If the work you are polishing is already of a reasonable finish, then you can often skip the coarser grades and start with the 3 or 1 micron.