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Regular & halogenated butyl rubber

The X_Butyl® product family contains a broad range of regular butyl rubber products and halogenated butyl rubber products.

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Bromobutyl Rubber
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 46 MU ISO 289 / ASTM D 1646 ML (1+8) 125 °C
Bromine Content 1,80 wt % Internal Method
Antioxidant non-staining > 0,03 wt % Internal Method
Ash Content ≤ 0,7 wt % ISO 247 / ASTM D 5667
Volatile Content ≤ 0,7 wt % ISO 248 / ASTM D 5668
Regular Butyl Rubber
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 51 MU ISO 289 / ASTM D 1646 ML (1+8) 125 °C
Unsaturation 1,75 %(Mol) (*)
Ash Content ≤ 0,3 wt % ISO 247 / ASTM D 5667
Volatile Content ≤ 1 wt % ISO 248 / ASTM D 5668
Bromobutyl Rubber
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 39 MU ISO 289 / ASTM D 1646 ML (1+8) 125 °C
Bromine Content 1,80 wt % Internal Method
Antioxidant non-staining ≥ 0,03 wt % (*)
Ash Content ≤ 0,7 wt % ISO 247 / ASTM D 5667
Volatile Content ≤ 0,7 wt % ISO 248 / ASTM D 5668
Bromobutyl Rubber
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 32 MU ISO 289 / ASTM D 1646 ML (1+8) 125 °C
Bromine Content 1,80 wt % Internal Method
Antioxidant non-staining > 0,03 wt % Internal Method
Chlorobutyl Rubber
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 38 MU ISO 289 / ASTM D 1646 ML (1+8) 125 °C
Chlorine Content 1,25 wt % Internal Method
Antioxidant non-staining ≥ 0,03 wt % (*)
Ash Content ≤ 0,5 wt % ISO 247 / ASTM D 5667
Volatile Content ≤ 0,5 wt % ISO 248 / ASTM D 5668
Regular Butyl Rubber
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 33 MU ISO 289 / ASTM D 1646 ML (1+8) 125 °C
Unsaturation 2,25 %(Mol) (*)
Antioxidant non-staining ≥ 0,03 wt % (*)
Ash Content ≤ 0,3 wt % ISO 247 / ASTM D 5667
Volatile Content ≤ 0,3 wt % ISO 248 / ASTM D 5668
Regular Butyl Rubber
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 51 MU ISO 289 / ASTM D 1646 ML (1+8) 125 °C
Unsaturation 1,85 %(Mol) (*)
Antioxidant non-staining ≥ 0,03 wt % (*)
Ash Content ≤ 0,3 wt % ISO 247 / ASTM D 5667
Volatile Content ≤ 0,3 wt % ISO 248 / ASTM D 5668

Butadiene Rubber

The BR polymer family contains polybutadiene rubbers which are divided into different categories according to their polymerization process and application field.

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Cobalt BR
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 53 MU ISO 289 / ASTM D 1646 ML (1+4) 100 °C
Cis 1,4 Content > 96 %
Cobalt BR
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 40 MU ISO 289 / ASTM D 1646 ML (1+4) 100 °C
Cis 1,4 Content > 96 %
Neodymium BR
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 63 MU ISO 289 / ASTM D 1646 ML (1+4) 100 °C
Cis 1,4 Content > 96 %
Lithium BR
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 45 MU ISO 289 / ASTM D 1646 ML (1+4) 100 °C
Cis 1,4 Content 38 %
Lithium BR
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 54 MU ISO 289 / ASTM D 1646 ML (1+4) 100 °C
Solution Viscosity 165 mPa.s Internal Method
Cis 1,4 Content 36 % Internal Method
Trans 1,4 Content 53 wt % Internal Method
Vinyl Content 11 wt % Internal Method
Color < 7,5 Internal Method
Lithium BR
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 54 MU ISO 289 / ASTM D 1646 ML (1+4) 100 °C
Cis 1,4 Content 36 % Internal Method
Trans 1,4 Content 53 wt % Internal Method
Vinyl Content 11 wt % Internal Method
Cobalt BR
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 43 MU ISO 289 / ASTM D 1646 ML (1+4) 100 °C
Cis 1,4 Content > 96 %
Neodymium BR
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 44 MU ISO 289 / ASTM D 1646 ML (1+4) 100 °C
Cis 1,4 Content > 96 %
Lithium BR
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 51 MU ISO 289 / ASTM D 1646 ML (1+4) 100 °C
Cis 1,4 Content 36 % Internal Method
Lithium BR
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 55 MU ISO 289 / ASTM D 1646 ML (1+4) 100 °C
Cis 1,4 Content 38 %
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Chloroprene Rubber

Baypren® is a chloroprene rubber with a wide diversity of applications due to its attractive combination of key technical properties that is unmatched by any other kind of rubber at comparable price. Learn more about our portfolio and the range of applications for Baypren.

Sulfur-modified Grades
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 43 MU ISO 289 / ASTM D 1646 ML (1+4) 100 °C

Emulsion Styrene Butadiene Rubber

The Buna® SE product group comprises the general purpose emulsion styrene-butadiene rubbers (E-SBR) which is one of the most important types of synthetic rubber. Emulsion Styrene Butadiene Rubber is the most widely used rubber in the world, representing about 40% of the synthetic rubber market,...

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Oil-free E-SBR
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 49 MU ISO 289 / ASTM D 1646 ML (1+4) 100 °C
Bound Styrene 23,5 wt % ASTM D 5775
Oil-extended E-SBR
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 53 MU ISO 289 / ASTM D 1646 ML (1+4) 100 °C
Bound Styrene 40,0 wt % ASTM D 5775
Oil Content 27,2 wt % ASTM D 5774
Oil-extended E-SBR
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 49 MU ISO 289 / ASTM D 1646 ML (1+4) 100 °C
Bound Styrene 23,5 wt % ASTM D 5775
Oil Content 27,2 wt % ASTM D 5774
Oil-extended E-SBR
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 51 MU ISO 289 / ASTM D 1646 ML (1+4) 100 °C
Bound Styrene 23,5 wt % ASTM D 5775
Oil Content 27,2 wt % ASTM D 5774
Oil-extended E-SBR
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 55 MU ISO 289 / ASTM D 1646 ML (1+4) 100 °C
Bound Styrene 40,0 wt % ASTM D 5775
Oil Content 27,2 wt % ASTM D 5774
Latex
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 135 MU ISO 289 / ASTM D 1646 ML (1+4) 100 °C
Brookfield Viscosity 800 cps ASTM D1417 25 °C
Bound Styrene 24,0 wt % ASTM D 5775
Total Solids 68,0 wt % ASTM D 1417
Superficial Tension 33,5 dyn/cm ASTM D 1417
Latex
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 135 MU ISO 289 / ASTM D 1646 ML (1+4) 100 °C
Brookfield Viscosity 800 cps ASTM D1417 25 °C
Bound Styrene 24,0 wt % ASTM D 5775
Total Solids 68,0 wt % ASTM D 1417
Superficial Tension 33,5 dyn/cm ASTM D 1417
Oil-free E-SBR
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 52 MU ISO 289 / ASTM D 1646 ML (1+4) 100 °C
Bound Styrene 23,5 wt % ASTM D 5775
Oil-free E-SBR
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 53 MU ISO 289 / ASTM D 1646 ML (1+4) 100 °C
Bound Styrene 23,5 wt % ASTM D 5775

Ethylene Propylene Diene Rubber

Keltan® has the broadest portfolio of premium EP(D)M grades in the world. The versatility of Keltan® elastomer, high product quality, high supply reliability and high service level enables high performance for our customers, their products and industrial solutions.

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Medium Mooney
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 52 MU ISO 289 / ASTM D 1646 ML (1+4) 125 °C
Molecular Weight Distribution CLCB Internal Method
Ethylene Content 58 wt % ASTM D 3900
ENB Content 4,5 wt % ASTM D 6047
Oil Content 100 PHR ISO 1407
High Mooney
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 80 MU ISO 289 / ASTM D 1646 ML (1+4) 125 °C
Molecular Weight Distribution CLCB Internal Method
Ethylene Content 66 wt % ASTM D 3900
ENB Content 5,0 wt % ASTM D 6047
Very high Mooney
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 92 MU ISO 289 / ASTM D 1646 ML (1+8) 150 °C
Molecular Weight Distribution CLCB Internal Method
Ethylene Content 56 wt % ASTM D 3900
ENB Content 5,5 wt % ASTM D 6047
Oil Content 15 PHR ISO 1407
Medium Mooney
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 48 MU ISO 289 / ASTM D 1646 ML (1+4) 125 °C
Molecular Weight Distribution Broad Internal Method
Ethylene Content 56 wt % ASTM D 3900
ENB Content 4,1 wt % ASTM D 6047
Oil Content 50 PHR ISO 1407
Medium Mooney
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 48 MU ISO 289 / ASTM D 1646 ML (1+4) 125 °C
Molecular Weight Distribution CLCB Internal Method
Ethylene Content 64 wt % ASTM D 3900
ENB Content 8,7 wt % ASTM D 6047
Oil Content 100 PHR ISO 1407
Medium Mooney
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 48 MU ISO 289 / ASTM D 1646 ML (1+4) 125 °C
Molecular Weight Distribution CLCB Internal Method
Ethylene Content 62 wt % ASTM D 3900
ENB Content 8,7 wt % ASTM D 6047
Oil Content 100 PHR ISO 1407
Medium Mooney
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 46 MU ISO 289 / ASTM D 1646 ML (1+4) 125 °C
Molecular Weight Distribution Narrow Internal Method
Ethylene Content 66 wt % ASTM D 3900
ENB Content 5,1 wt % ASTM D 6047
Oil Content 75 PHR ISO 1407
Medium Mooney
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 52 MU ISO 289 / ASTM D 1646 ML (1+4) 125 °C
Molecular Weight Distribution CLCB Internal Method
Ethylene Content 58 wt % ASTM D 3900
ENB Content 4,5 wt % ASTM D 6047
Oil Content 75 PHR ISO 1407
Medium Mooney
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 37 MU ISO 289 / ASTM D 1646 ML (1+8) 150 °C
Molecular Weight Distribution Narrow Internal Method
Ethylene Content 64 wt % ASTM D 3900
ENB Content 4,0 wt % ASTM D 6047
Oil Content 50 PHR ISO 1407
High Mooney
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 63 MU ISO 289 / ASTM D 1646 ML (1+4) 125 °C
Molecular Weight Distribution Medium Internal Method
Ethylene Content 64 wt % ASTM D 3900
DCPD Content 1,2 wt % ASTM D 6047
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Ethylene Vinyl Acetate Rubber

Durability energized by Levapren® rubber from ARLANXEO. The cost-effective EVM-specialty fordemanding applications as for moving sidewalks and floorings.

General Purpose Grades
Property Nominal Value Test Method Condition Temperature
Melt Flow Index 190 °C 2,75 g/10mi ISO 1133
Vinyl Acetate Content 50 wt % Internal Method LP 015
General Purpose Grades
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 27 MU ISO 289 / ASTM D 1646 ML (1+4) 100 °C
Vinyl Acetate Content 50 wt % Internal Method LP 015
General Purpose Grades
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 27 MU ISO 289 / ASTM D 1646 ML (1+4) 100 °C
Vinyl Acetate Content 60 wt % Internal Method LP 015
General Purpose Grades
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 27 MU ISO 289 / ASTM D 1646 ML (1+4) 100 °C
Vinyl Acetate Content 70 wt % Internal Method LP 015
General Purpose Grades
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 28 MU ISO 289 / ASTM D 1646 ML (1+4) 100 °C
Vinyl Acetate Content 80 wt % Internal Method LP 015
General Purpose Grades
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 38 MU ISO 289 / ASTM D 1646 ML (1+4) 100 °C
Vinyl Acetate Content 90 wt % Internal Method LP 015
General Purpose Grades
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 20 MU ISO 289 / ASTM D 1646 ML (1+4) 100 °C
Vinyl Acetate Content 40 wt % Internal Method LP 015

 Hydrogenated Nitrile Butadiene Rubber

Successful in many key industries. Excellent properties e.g. for engine components. Reliable resistance to aggressive fluids, oil and grease – able to function up to 165°C.

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Low Temperature Grades
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 74 MU ISO 289 / ASTM D 1646 ML (1+4) 100 °C
Acrylonitrile Content 21,0 wt % ISO 24698-1
Residual Double Bonds 0,9 % IR Spectroscopy
Partially Saturated (suitable for peroxide and sulfur crosslinking) Grades
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 61 MU ISO 289 / ASTM D 1646 ML (1+4) 100 °C
Acrylonitrile Content 34,0 wt % ISO 24698-1
Residual Double Bonds 3,95 % IR Spectroscopy
Fully Saturated (suitable for peroxide crosslinking) Grades
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 70 MU ISO 289 / ASTM D 1646 ML (1+4) 100 °C
Acrylonitrile Content 34,0 wt % ISO 24698-1
Residual Double Bonds 0,9 % IR Spectroscopy
Partially Saturated (suitable for peroxide and sulfur crosslinking) Grades
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 61 MU ISO 289 / ASTM D 1646 ML (1+4) 100 °C
Acrylonitrile Content 43,0 wt % ISO 24698-1
Residual Double Bonds 5,5 % IR Spectroscopy

Functionalized & Standard S-SBR and Block Co-Polymers

The Buna® S-SBR product family contains a wide range of solution styrene butadiene rubber products which are defined into Buna FX, Buna VSL, Buna SL and Buna BL.

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Diblock Copolymers (Buna BL)
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 50 MU ISO 289 / ASTM D 1646 ML (1+4) 100 °C
Bound Styrene 48,5 wt % ASTM D 5775
Block Styrene Content 34,5 wt % ASTM D 3314
Standard S-SBR (Buna SL)
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 45 MU ISO 289 / ASTM D 1646 ML (1+4) 100 °C
Styrene Content 25 wt % ASTM D 5775
Diblock Copolymers (Buna BL)
Property Nominal Value Test Method Condition Temperature
Mooney Viscosity 45 MU ISO 289 / ASTM D 1646 ML (1+4) 100 °C
Bound Styrene 48,0 wt % ASTM D 5775
Block Styrene Content 30,0 wt % ASTM D 3314