Thread: Question about sandpaper grits

I have a stack with 220, 320, 400, 600, 1500, and 2000.

When I am done, the blade is very near mirror finished.

I think there are four main systems - the three in this table, and the JIS japanese one.

From the table, you can see that the P1200 is roughly equivalent to CAMI 600 grit. CAMI is standard for North America, FEPA (the "P" system) is European.

Regards,
Neil

Originally Posted by Neil Miller

I think there are four main systems - the three in this table, and the JIS japanese one.

From the table, you can see that the P1200 is roughly equivalent to CAMI 600 grit. CAMI is standard for North America, FEPA (the "P" system) is European.

Regards,
Neil

So in the list DPflaumer just gave me, those would be CAMI numbers?

The list I gave is P

Originally Posted by DPflaumer

The list I gave is P

Ok, that makes more sense. Thanks for clearing that up.

Am I to assume then that most people use the "P" grits when just conversing on here, despite CAMI being the supposed standard in the US?

I would guess that most people mean P

Originally Posted by chaiguy

Ok, that makes more sense. Thanks for clearing that up.

Am I to assume then that most people use the "P" grits when just conversing on here, despite CAMI being the supposed standard in the US?

Yes. We all "P" freely here.

Originally Posted by Pete_S

Yes. We all "P" freely here.

Aha, according to Sandpaper - Wikipedia, the free encyclopedia the "P" refers to the ISO/FEPA system, the other one being CAMI. In higher grits, the CAMI numbers are smaller, thus the "P" would be the 4000 side of 1200/4000.

Guess I could have checked that before asking, but now it's here in case anyone else has a similar question.