FEPA P-grade · Converted
P2500 in CAMI grit and microns.
P2500 paper averages about 8.4 µm on the FEPA table. On the US CAMI scale that is finer than any published CAMI grade.
- Avg. particle
- ~8.4 µm
- FEPA table
- Nearest CAMI
- < 1000
- past the CAMI table
- Plain "2500"
- n/a
- no CAMI 2500 published
- 3M Trizact
- A6
- 3M’s own pairing
What P2500 is for
The last paper step before polish on a show finish.
- 3M Trizact A6 / P2500Pre-polish refinement.
Either side of P2500
The neighborhood.
Questions people ask
What is P2500 in CAMI grit?
There isn't one. P2500 averages 8.4 microns, and the published CAMI table stops at CAMI 1000, which is coarser.
How many microns is P2500 sandpaper?
About 8.4 microns average particle diameter, per the FEPA P-grade table (ISO 6344).
What Trizact grade is P2500?
3M pairs P2500 with Trizact A6 in its Trizact brochure. Don't read the A-number as microns: 3M's own pairings put A45 at P400, which averages 35 microns on the FEPA table.
Convert any other grade, from CAMI, microns or a Trizact A-number, on the grit converter.
Sizes are average particle diameters from the published FEPA (ISO 6344) and CAMI (ANSI B74.12/B74.18) tables. "Nearest" means within 10%; otherwise both neighbors are shown. Trizact pairings are 3M's own. Sources: Wikipedia, "Sandpaper" grit table (rev. 1127917881); Klingspor coated abrasives grit chart; 3M Trizact A-to-P table.