Sandpaper Buyers Guide

Posted: July 24, 2020 By: MattM

EASTWOOD’S SANDPAPER SHOP

Eastwood offers an assortment of sandpaper for paint & rust removal, block sanding, and color sanding. Various compositions, backing and grits cover a multitude of uses. This handy chart will link you to each type on the Eastwood page, so you can buy just what you need without a lot of browsing.

Wet/Dry

Paper TypeMaterialP400 GritP600 GritP1000 GritP1500 GritP2000 GritP2500 Grit
9″ x 11″ Sheet Wet/Dry 50 pkSilicone Carbide313563135319633196341963531385
5.5″ x 11″ Half-Sheet Wet/Dry 50 pkSilicone Carbide——-——-31352313543135519636

Dry Use

TypeMaterialP40 GritP80 GritP120 GritP180 GritP220 GritP320 GritP400 GritP600 Grit
Rolls – Plain Back 2.75″ x 82.75″Alum. Oxide & Lubricant——313673136819612313691961319614——
Rolls Adhesive Back (PSA) 2.75″ x 82.75″Alum. Oxide & Lubricant31373313753137419627196283137631377——
Long Board – Plain Back 2.75″ x 16.5″Alum. Oxide & Lubricant31363313623136419609313651961019611——
Long Board – Adhesive Back 2.75″ x 16.5″Alum. Oxide & Lubricant31370313713137219629196301963119632——
6″ Disc White Adhesive Back 100-pkAlum. Oxide & Lubricant14063
50-pk
19619196163135931360313611961719618
6″ Disc White Adhesive Back 25-pkAlum. Oxide & Lubricant——19626196201962119622196231962419625

All sandpaper manufacturers have gone to the P-Grit standard, which is what we list for all papers sold on the Eastwood site. The difference between the two systems is negligible for coarser grits, 240 and lower numbers are the same in either system. In the upper, finer numbered grits it it very different, the old 1000 grit would be considered between 2000 and 2500 in the new system. You can use this chart to compare the 2 numbers, and also see what the size of the typical abrasive grain is for each grade.

US Grit to P-Grit.

Average particle size in micronsUS Grit (CAMI)P Grit (FEPA)
6.51200——
8.4——P2500
9.21000——
10.3——P2000
12.2800——
12.6——P1500
15.3——P1200
16600——
18.3——P1000
19.7500——
21.8——P800
23.6400——
25.75——P600
28.8360——
30——P500
35——P400
36320——
40.5——P360
44280——
46.2——P320
52.5——P280
58.5240P240
65.5220P220
78180P180
93150P150
116120P120
141100P100
19280P80
26860P60
35150P50
42840P40
53536P36
71524P24
90520P20
132016P16
184212P12

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