Backing

Cloth Backing
Type	Property	Backing-material
J-flex-w	light, extremely flexible	cotton cloth
J-flex	light, very flexible	cotton cloth
J	light, flexible	cotton cloth
EJ	light, flexible	synthetic cloth
X-flex(Xw-flex)	heavy, flexible	cotton cloth
X(Xw)	heavy, medium flexible	cotton cloth
TY	heavy duty, medium flexible	synthetic cloth
Y(Yw)	heavy duty, stiff flexible	synthetic cloth
Z	heavy duty, stiff	synthetic cloth
XX	heavy duty, stiff flexible	cotton cloth

Stitch Bonded Cloth
Type	Property	Backing-material
XX	heavy duty, stiff flexible	synthetic stitch bonded cloth
Y	heavy duty, stiff flexible	synthetic stitch bonded cloth
YR	heavy duty, stiff flexible	synthetic stitch bonded cloth
XX	heavy duty, stiff	synthetic stitch bonded cloth

Paper
Type	Weight g/m"
A (Aw)	< 85
B (Bw)	>80 - 110
C (Cw)	>110 - 135
D	>135 - 160
E	>220 - 270
F	>270 - 350
G	>350 - 500

Fiber
Type	Average thickness
J-flex	0,4 - 0,55 mm
J	0,6 - 0,65 mm
X	0,8 - 0,85 mm

Film

Type

PES = Polyester

Abrasive Grains and Grain Standards
Grain	Grain Standard
A/O (Aluminum Oxide)	P = FEPA - DIN 69 176
Sapphire Blue® (microfracture Aluminum Oxide)	P = FEPA - DIN 69 176
S/C (Silicon Carbide	P = FEPA - DIN 69 176
Z/A (Zirconia Alumina)	# = ANSI - B74.18-1984
Garnet	# = ANSI - B74,18-1984
Hermesit	P = FEPA - DIN 69 176

Bonding Systems
Bonding	Description
Resin
Resin, antistatic
Resin, Procut	Size coat with active additives
Resin, Prolub	Applied stearate coat, or active additives in the size coat
Glue
Glue, Prolub	Applied stearate coat, or active additives in the size coat