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USA International 001-508-678-1985 · www.rexcut.com
sTAnDARD mARkinG sysTEm
AnD sPECifiCATiOns
Type of Grain
size of Grain
bonds
A = Aluminum Oxide
Coarse - 16, 24, 36
GFX - Soft
C = Silicon Carbide
Medium - 54, 80
JTX - Medium
Fine - 120, 180
MTX - Hard
Very Fine - 320
NTX - Very Hard
measured in micro-meter for a value
of RA (roughness average)
Grit size RA*
Rex-Cut
Cotton fiber
RA**
sigma
RA**
24
5.3 6.1
2.8 3.3
36
4.7 5.2
1.0 2.0
2.5
54 (60)
3.5 4.5
.8 1.5
2.0
80
1.6 4.4
.5 1.3
120
1.1 1.5
.4 .8
180
.6 1.0
.3 .5
240
.2 .5
N/A
320
.1 .4
.1 .3
*Industry data for conventional abrasives on stainless steel
**Rex-Cut RA values are measured with a Mahr Federal
Surface analyzer. The values are an average taken
from multiple measurements on 304 stainless steel.
COTTOn fibER AbRAsivE sPECifiCATiOns
mATER
i
AL
sPEC
ifi
CAT
i
O
ns
CLOsER LOOk inTO bOnDs
GFX - soft, flexible synthetic latex bond for light deburring, blending,
and finishing in one single operation
JTX - medium resin bond for light deburring, long life
MTX - hard resin bond for light to medium stock removal, long life
NTX - very hard resin bond for medium stock removal, long life
Sample wheel spec:
A36 GFX
sURfACE finisH
COmPARisOns
Rex-Cut Cotton Fiber products leave a finer
finish than the specified grit would suggest
due to the fact the grain is submerged in
cotton material.