Discs
Pro
Grit · 180
Festool Granat 5-Inch Disc, 180 Grit (25-pack)
Hardwood pre-stain. The grain stays open and invites what comes next.
FEPA P-grade · Converted
P180 in CAMI grit and microns.
P180 paper averages about 82 µm on the FEPA table. On the US CAMI scale that is about CAMI 180. A sheet printed plain "180" is about 82 µm, close enough that the P barely matters at this grade.
- Avg. particle
- ~82 µm
- FEPA table
- Nearest CAMI
- 180
- by particle size
- Plain "180"
- ~82 µm
- CAMI 180 ≈ P180
- 3M Trizact
- A110
- 3M’s own pairing
What P180 is for
Hardwoods before stain; feathering the edges of filler.
- 3M Trizact A110 / P180Pre-finish on metal and composites.
- Norton 3X P180Hardwoods before stain.
- Festool Granat P180Pre-stain on hardwoods.Check price →
Either side of P180
The neighborhood.
At this grade
Paper we link at P180.
Questions people ask
What is P180 in CAMI grit?
About 180. P180 averages 82 microns on the FEPA table and CAMI 180 averages 82, so the scratch is close to the same.
How many microns is P180 sandpaper?
About 82 microns average particle diameter, per the FEPA P-grade table (ISO 6344).
Is P180 the same as 180 grit?
Close enough to treat as the same. P180 averages 82 microns and CAMI 180 (a bare "180" on US paper) averages 82.
What Trizact grade is P180?
3M pairs P180 with Trizact A110 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.