FEPA P-grade · Converted
P1000 in CAMI grit and microns.
P1000 paper averages about 18.3 µm on the FEPA table. On the US CAMI scale that is about CAMI 500. A sheet printed plain "1000" is a different animal: about 10.3 µm, nearer P2000. If the instructions say P1000 and the pack has no P on it, reach for the CAMI number, not the digits.
- Avg. particle
- ~18.3 µm
- FEPA table
- Nearest CAMI
- 500
- by particle size
- Plain "1000"
- ~10.3 µm
- CAMI 1000 ≈ P2000
- 3M Trizact
- ·
- no A-grade paired by 3M
What P1000 is for
Orange peel and dust nibs in cured clear.
Either side of P1000
The neighborhood.
Questions people ask
What is P1000 in CAMI grit?
About 500. P1000 averages 18.3 microns on the FEPA table and CAMI 500 averages 20, so the scratch is close to the same.
How many microns is P1000 sandpaper?
About 18.3 microns average particle diameter, per the FEPA P-grade table (ISO 6344).
Is P1000 the same as 1000 grit?
No. P1000 averages 18.3 microns; a sheet printed plain "1000" on the CAMI scale averages 10.3, which is closer to P2000. The CAMI sheet is the finer of the two.
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.