FEPA-P wet/dry sandpaper

Coated abrasive, graded to FEPA-P

This product is the standard grade. Premium European wet/dry paper is made to the FEPA-P grade, so it carries no particle size of its own: it inherits the FEPA-P distribution exactly. Here the product and the standard coincide. Compare this with a waterstone, which borrows a grit number without conforming.

Each grade below shows its size in microns, its spread (the published distribution, where a maker or standard gives one; most makers publish none), and where that size lands on the reference scale, a shared yardstick for reading grit numbers across makers.

Particle sizemicrons, log

403020105

coarserfiner

inkmeasured or standardmaker figureour estimate

shapeknown distributionpoint, spread unknown

P400Conforms to FEPA-P

FEPA P400

35 µm

The product is this grade, so it inherits the standard distribution: d3 53.9, median 35, d94 25.2 µm.

spread 53.9 to 25.2 µm · reference scale about #350

P800Conforms to FEPA-P

FEPA P800

21.8 µm

The product is this grade, so it inherits the standard distribution: d3 38.1, median 21.8, d94 15.1 µm.

spread 38.1 to 15.1 µm · reference scale about #550

P1500Conforms to FEPA-P

FEPA P1500

12.6 µm

The product is this grade, so it inherits the standard distribution: d3 25.8, median 12.6, d94 8.3 µm.

spread 25.8 to 8.3 µm · reference scale about #900

P2000Conforms to FEPA-P

FEPA P2000

10.3 µm

The product is this grade, so it inherits the standard distribution: d3 22.4, median 10.3, d94 6.7 µm.

spread 22.4 to 6.7 µm · reference scale about #1100

P2500Conforms to FEPA-P

FEPA P2500

8.4 µm

The product is this grade, so it inherits the standard distribution: d3 19.3, median 8.4, d94 5.4 µm.

spread 19.3 to 5.4 µm · reference scale about #1400