MODELING DATA GRIT SIZE vs MICRON SIZES

GRIT MICRONS GRIT MICRONS
1000(fine) 7(small) 90 145
900 9 80 165
800 12 70 203
600 16 60 254
320 31 54 305
700 32 46 356
280 39 36 483
500 40 30 559
400 45 24 686
240 50 20 940
220 63 16 1092
180 76 14 1346
150 89 12 1600
120 102 10 1854
100 122 8(coarse) 2210(large)
THIS CHART IS USEFUL FOR CHOOSING ABRASIVE BLASTING MATERIAL AND SANDPAPERS.

GRIT NUMBERS RANGE FROM #1000(FINE)TO #8(COARSE).

SANDPAPERS, BOTH WET AND DRY TYPES,COMMONLY USED IN MODEL RAILROADING RANGE FROM 180 TO 1000 GRIT. 180 GRIT IS VERY AGRESSIVE

BLASTING ABRASIVES COMMONLY USED IN MODEL RAILROADING ARE 50 TO 75 MICRONS.

S.A. McCall