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Material Grade Reference Library

500 manufacturer-listed material grades for reference and comparison.

These are raw-material or compound references, not finished products or confirmed available stock. Reported values are typical source values under the stated test conditions. Blank fields mean not reported; they do not mean zero.

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500 matching grades · Page 2 of 20

Manufacturer / gradePolymerHardnessTensile MPaElongation %Source and test context
Buna® CB 1203
ARLANXEO		BR———Manufacturer source
Reported conditions

Accessed 2026-10-19. RSM-0026

Mooney Viscosity
{"value":"43 MU","test_method":"ISO 289 \/ ASTM D 1646","condition":"ML (1+4)","temperature":"100 °C"}
Cis 1,4 Content
{"value":"> 96 %","test_method":"","condition":"","temperature":""}
Density
{"value":"0,91 g\/cm3","test_method":"ASTM D 297","condition":"","temperature":""}
Buna® CB 1220
ARLANXEO		BR———Manufacturer source
Reported conditions

Accessed 2026-10-19. RSM-0027

Mooney Viscosity
{"value":"40 MU","test_method":"ISO 289 \/ ASTM D 1646","condition":"ML (1+4)","temperature":"100 °C"}
Cis 1,4 Content
{"value":"> 96 %","test_method":"Internal Method","condition":"","temperature":""}
Density
{"value":"0,91 g\/cm3","test_method":"ASTM D 297","condition":"","temperature":""}
Buna® CB 1221
ARLANXEO		BR———Manufacturer source
Reported conditions

Accessed 2026-10-19. RSM-0028

Mooney Viscosity
{"value":"53 MU","test_method":"ISO 289 \/ ASTM D 1646","condition":"ML (1+4)","temperature":"100 °C"}
Cis 1,4 Content
{"value":"> 96 %","test_method":"","condition":"","temperature":""}
Density
{"value":"0,91 g\/cm3","test_method":"ASTM D 297","condition":"","temperature":""}
Buna® CB 22
ARLANXEO		BR———Manufacturer source
Reported conditions

Accessed 2026-10-19. RSM-0029

Mooney Viscosity
{"value":"63 MU","test_method":"ISO 289 \/ ASTM D 1646","condition":"ML (1+4)","temperature":"100 °C"}
Cis 1,4 Content
{"value":"> 96 %","test_method":"","condition":"","temperature":""}
Density
{"value":"0,91 g\/cm3","test_method":"ASTM D 297","condition":"","temperature":""}
Buna® CB 24
ARLANXEO		BR———Manufacturer source
Reported conditions

Accessed 2026-10-19. RSM-0030

Mooney Viscosity
{"value":"44 MU","test_method":"ISO 289 \/ ASTM D 1646","condition":"ML (1+4)","temperature":"100 °C"}
Cis 1,4 Content
{"value":"> 96 %","test_method":"","condition":"","temperature":""}
Density
{"value":"0,91 g\/cm3","test_method":"ASTM D 297","condition":"","temperature":""}
Buna® CB 25
ARLANXEO		BR———Manufacturer source
Reported conditions

Accessed 2026-10-19. RSM-0031

Mooney Viscosity
{"value":"44 MU","test_method":"ISO 289 \/ ASTM D 1646","condition":"ML (1+4)","temperature":"100 °C"}
Cis 1,4 Content
{"value":"> 96 %","test_method":"","condition":"","temperature":""}
Density
{"value":"0,91 g\/cm3","test_method":"ASTM D 297","condition":"","temperature":""}
Buna® CB 380 IL
ARLANXEO		BR———Manufacturer source
Reported conditions

Accessed 2026-10-19. RSM-0032

Mooney Viscosity
{"value":"38 MU","test_method":"ISO 289 \/ ASTM D 1646","condition":"ML (1+4)","temperature":"100 °C"}
Solution Viscosity
{"value":"90 mPa.s","test_method":"Internal Method","condition":"","temperature":""}
Cis 1,4 Content
{"value":"38 %","test_method":"","condition":"","temperature":""}
Density
{"value":"0,90 g\/cm3","test_method":"ASTM D 297","condition":"","temperature":""}
Color
{"value":"< 5","test_method":"Internal Method","condition":"","temperature":""}
Buna® CB 45
ARLANXEO		BR———Manufacturer source
Reported conditions

Accessed 2026-10-19. RSM-0033

Mooney Viscosity
{"value":"45 MU","test_method":"ISO 289 \/ ASTM D 1646","condition":"ML (1+4)","temperature":"100 °C"}
Cis 1,4 Content
{"value":"38 %","test_method":"","condition":"","temperature":""}
Density
{"value":"0,90 g\/cm3","test_method":"ASTM D 297","condition":"","temperature":""}
Buna® CB 45 VP
ARLANXEO		BR———Manufacturer source
Reported conditions

Accessed 2026-10-19. RSM-0034

Mooney Viscosity
{"value":"45 MU","test_method":"ISO 289 \/ ASTM D 1646","condition":"ML (1+4)","temperature":"100 °C"}
Cis 1,4 Content
{"value":"38 %","test_method":"","condition":"","temperature":""}
Density
{"value":"0,90 g\/cm3","test_method":"ASTM D 297","condition":"","temperature":""}
Buna® CB 530 T
ARLANXEO		BR———Manufacturer source
Reported conditions

Accessed 2026-10-19. RSM-0035

Mooney Viscosity
{"value":"68 MU","test_method":"ISO 289 \/ ASTM D 1646","condition":"ML (1+4)","temperature":"100 °C"}
Solution Viscosity
{"value":"250 mPa.s","test_method":"Internal Method","condition":"","temperature":""}
Cis 1,4 Content
{"value":"38 %","test_method":"","condition":"","temperature":""}
Density
{"value":"0,90 g\/cm3","test_method":"ASTM D 297","condition":"","temperature":""}
Color
{"value":"< 4,5","test_method":"Internal Method","condition":"","temperature":""}
Buna® CB 550 IL
ARLANXEO		BR———Manufacturer source
Reported conditions

Accessed 2026-10-19. RSM-0036

Mooney Viscosity
{"value":"54 MU","test_method":"ISO 289 \/ ASTM D 1646","condition":"ML (1+4)","temperature":"100 °C"}
Solution Viscosity
{"value":"163 mPa.s","test_method":"Internal Method","condition":"","temperature":""}
Cis 1,4 Content
{"value":"38 %","test_method":"","condition":"","temperature":""}
Density
{"value":"0,90 g\/cm3","test_method":"ASTM D 297","condition":"","temperature":""}
Color
{"value":"< 5,0","test_method":"","condition":"","temperature":""}
Buna® CB 550 IT
ARLANXEO		BR———Manufacturer source
Reported conditions

Accessed 2026-10-19. RSM-0037

Mooney Viscosity
{"value":"54 MU","test_method":"ISO 289 \/ ASTM D 1646","condition":"ML (1+4)","temperature":"100 °C"}
Solution Viscosity
{"value":"163 mPa.s","test_method":"Internal Method","condition":"","temperature":""}
Cis 1,4 Content
{"value":"38 %","test_method":"","condition":"","temperature":""}
Density
{"value":"0,90 g\/cm3","test_method":"ASTM D 297","condition":"","temperature":""}
Color
{"value":"< 5,0","test_method":"Internal Method","condition":"","temperature":""}
Buna® CB 550 T
ARLANXEO		BR———Manufacturer source
Reported conditions

Accessed 2026-10-19. RSM-0038

Mooney Viscosity
{"value":"54 MU","test_method":"ISO 289 \/ ASTM D 1646","condition":"ML (1+4)","temperature":"100 °C"}
Solution Viscosity
{"value":"163 mPa.s","test_method":"Internal Method","condition":"","temperature":""}
Cis 1,4 Content
{"value":"38 %","test_method":"","condition":"","temperature":""}
Density
{"value":"0,90 g\/cm3","test_method":"ASTM D 297","condition":"","temperature":""}
Color
{"value":"< 4,5","test_method":"Internal Method","condition":"","temperature":""}
Buna® CB 565 T
ARLANXEO		BR———Manufacturer source
Reported conditions

Accessed 2026-10-19. RSM-0039

Mooney Viscosity
{"value":"60 MU","test_method":"ISO 289 \/ ASTM D 1646","condition":"ML (1+4)","temperature":"100 °C"}
Solution Viscosity
{"value":"44 mPa.s","test_method":"Internal Method","condition":"","temperature":""}
Cis 1,4 Content
{"value":"38 %","test_method":"","condition":"","temperature":""}
Density
{"value":"0,90 g\/cm3","test_method":"ASTM D 297","condition":"","temperature":""}
Color
{"value":"< 4,5","test_method":"Internal Method","condition":"","temperature":""}
Buna® CB 728 T
ARLANXEO		BR———Manufacturer source
Reported conditions

Accessed 2026-10-19. RSM-0040

Mooney Viscosity
{"value":"44 MU","test_method":"ISO 289 \/ ASTM D 1646","condition":"ML (1+4)","temperature":"100 °C"}
Solution Viscosity
{"value":"160 mPa.s","test_method":"Internal Method","condition":"","temperature":""}
Cis 1,4 Content
{"value":"> 94 %","test_method":"","condition":"","temperature":""}
Density
{"value":"0,91 g\/cm3","test_method":"ASTM D 297","condition":"","temperature":""}
Color
{"value":"< 5,0","test_method":"Internal Method","condition":"","temperature":""}
Buna® Nd 22 EZ
ARLANXEO		BR———Manufacturer source
Reported conditions

Accessed 2026-10-19. RSM-0041

Mooney Viscosity
{"value":"63 MU","test_method":"ISO 289 \/ ASTM D 1646","condition":"ML (1+4)","temperature":"100 °C"}
Cis 1,4 Content
{"value":"> 96 %","test_method":"","condition":"","temperature":""}
Density
{"value":"0,91 g\/cm3","test_method":"ASTM D 297","condition":"","temperature":""}
Buna® Nd 24 EZ
ARLANXEO		BR———Manufacturer source
Reported conditions

Accessed 2026-10-19. RSM-0042

Mooney Viscosity
{"value":"44 MU","test_method":"ISO 289 \/ ASTM D 1646","condition":"ML (1+4)","temperature":"100 °C"}
Cis 1,4 Content
{"value":"> 96 %","test_method":"","condition":"","temperature":""}
Density
{"value":"0,91 g\/cm3","test_method":"ASTM D 297","condition":"","temperature":""}
NIPOL® BR 1220
ZEON		BR———Manufacturer source
Reported conditions

Accessed 2026-10-19. RSM-0043

Mooney Viscosity ML 1+4, 100°C [MU]
43
NIPOL® BR 1250H
ZEON		BR———Manufacturer source
Reported conditions

Accessed 2026-10-19. RSM-0044

Mooney Viscosity ML 1+4, 100°C [MU]
50
NIPOL® BR 1261
ZEON		BR———Manufacturer source
Reported conditions

Accessed 2026-10-19. RSM-0045

Mooney Viscosity ML 1+4, 100°C [MU]
50
X_Butyl® CB 1240
ARLANXEO		CIIR———Manufacturer source
Reported conditions

Accessed 2026-10-19. RSM-0046

Mooney Viscosity
{"value":"38 MU","test_method":"ISO 289 \/ ASTM D 1646","condition":"ML (1+8)","temperature":"125 °C"}
Chlorine Content
{"value":"1,25 wt %","test_method":"Internal Method","condition":"","temperature":""}
Antioxidant non-staining
{"value":"> 0,03 wt %","test_method":"Internal Method","condition":"","temperature":""}
Ash Content
{"value":"≤ 0,5 wt %","test_method":"ISO 247 \/ ASTM D 5667","condition":"","temperature":""}
Volatile Content
{"value":"≤ 0,5 wt %","test_method":"ISO 248 \/ ASTM D 5668","condition":"","temperature":""}
Baypren® 110 M 41
ARLANXEO		CR———Manufacturer source
Reported conditions

Accessed 2026-10-19. RSM-0047

Mooney Viscosity
{"value":"41 MU","test_method":"ISO 289 \/ ASTM D 1646","condition":"ML (1+4)","temperature":"100 °C"}
Density
{"value":"1,23 g\/cm3","test_method":"Internal Method","condition":"","temperature":""}
Baypren® 110 M 49
ARLANXEO		CR———Manufacturer source
Reported conditions

Accessed 2026-10-19. RSM-0048

Mooney Viscosity
{"value":"49 MU","test_method":"ISO 289 \/ ASTM D 1646","condition":"ML (1+4)","temperature":"100 °C"}
Density
{"value":"1,23 g\/cm3","test_method":"Internal Method","condition":"","temperature":""}
Baypren® 110 M 65
ARLANXEO		CR———Manufacturer source
Reported conditions

Accessed 2026-10-19. RSM-0049

Mooney Viscosity
{"value":"65 MU","test_method":"ISO 289 \/ ASTM D 1646","condition":"ML (1+4)","temperature":"100 °C"}
Density
{"value":"1,23 g\/cm3","test_method":"Internal Method","condition":"","temperature":""}
Baypren® 114 M 62
ARLANXEO		CR———Manufacturer source
Reported conditions

Accessed 2026-10-19. RSM-0050

Mooney Viscosity
{"value":"62 MU","test_method":"ISO 289 \/ ASTM D 1646","condition":"ML (1+4)","temperature":"100 °C"}
Density
{"value":"1,23 g\/cm3","test_method":"Internal Method","condition":"","temperature":""}

Source access date: 19 October 2026. Cure conditions are not continuous service-temperature ratings. Shore A and Asker C are kept separate. Refer to the manufacturer source for full conditions and current documentation.