Discs
Pro
Grit · 150
Festool Granat 5-Inch Disc, 150 Grit (25-pack)
Pre-finish. When the surface has finally done what you needed it to do.
FEPA P-grade · Converted
P150 in CAMI grit and microns.
P150 paper averages about 100 µm on the FEPA table. On the US CAMI scale that is about CAMI 150. A sheet printed plain "150" is about 92 µm, close enough that the P barely matters at this grade.
- Avg. particle
- ~100 µm
- FEPA table
- Nearest CAMI
- 150
- by particle size
- Plain "150"
- ~92 µm
- CAMI 150 ≈ P150
- 3M Trizact
- A130
- 3M’s own pairing
What P150 is for
Pre-primer smoothness; softwoods before finish.
- 3M Trizact A130 / P150Metal finishing after a coarse grind.
- Norton 3X P150Pre-primer smoothness.
- Festool Granat P150Pre-finish on softwoods.Check price →
- Mirka Abranet P150Pre-primer; softwood before finish.Check price →
Either side of P150
The neighborhood.
At this grade
Paper we link at P150.
Discs
Pro
Grit · 150
Mirka ABRANET 5-Inch Mesh Disc, 150 Grit (50-pack)
Open mesh pre-finish. The surface stays clean because the dust actually leaves.
Questions people ask
What is P150 in CAMI grit?
About 150. P150 averages 100 microns on the FEPA table and CAMI 150 averages 92, so the scratch is close to the same.
How many microns is P150 sandpaper?
About 100 microns average particle diameter, per the FEPA P-grade table (ISO 6344).
Is P150 the same as 150 grit?
Close enough to treat as the same. P150 averages 100 microns and CAMI 150 (a bare "150" on US paper) averages 92.
What Trizact grade is P150?
3M pairs P150 with Trizact A130 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.