GBT Quality
|
RMA Quality
|
DIN Quality
|
ISO Quality
|
Temperature (°F)
|
Basic Materials
|
Application Technical Characteristics
|
min.
|
surf.
|
mat
|
|
|
|
|
|
|
|
|
|
|
N.A.
|
RMA 3
|
Z
|
L
|
-20
|
165
|
190
|
SBR
|
General purpose light conditions
|
|
Grade 2
|
RMA 2
|
Y
|
|
-30
|
175
|
212
|
NR/SBR
|
High abrasion resistant for normal service conditions
|
|
HARC
|
|
W
|
D
|
-40
|
175
|
190
|
NR/SBR
|
Super abrasion resistant for heavy service conditions for abrasive materials with a large proportion of fines
|
|
Grade 1
|
RMA 1
|
X
|
H
|
-40
|
175
|
190
|
NR
|
Extra abrasion & cut resistant for heavy duty service conditions with sharp materials and adverse loading conditions
|
|
HM 250
|
|
T
|
|
-25
|
250
|
300
|
SBR
|
Heat resistant for materials at moderate temperatures
|
|
HM 400
|
|
T
|
|
-25
|
400
|
300
|
SBR/IR
|
Higher heat resistance for materials with controlled high temperaturs
|
|
HM 750
|
|
T
|
|
-25
|
750
|
400
|
EPDM
|
Very heat resistant for heavy duty service conditions excluding abrasive materials up to 750°F
|
|
MOR/SC
|
|
G
|
|
-20
|
175
|
200
|
SBR/NBR
|
Oil and fat resistant for terpenes, vegetable and animal oils - medium service conditions
|
|
SOR
|
|
G
|
|
-20
|
175
|
200
|
SBR/NBR
|
Oil resistant for vegetable oils and animal fats and/or heavy service conditions
|
|
OHR
|
|
G
|
|
-20
|
250
|
350
|
NBR
|
Oil and heat resistant for oily materials (mineral oil base)
|
|
FR-SBR
|
|
K
|
|
-20
|
175
|
200
|
SBR
|
Fire resistant for coal
|
|
FR-HA
|
|
K
|
|
-30
|
175
|
200
|
NR/SBR
|
Fire resistant for coal, high abrasion
|
|
FR-OR-SC
|
|
K
|
|
-20
|
175
|
200
|
SBR/NBR
|
Same characteristics as MOR/SC and also fire resistant
|
|
FR-SOR-SC
|
|
K
|
|
-20
|
175
|
200
|
SBR/NBR
|
Same characteristics as SOR and also fire resistant
|
|