Physical Properties

Rubber Compounds

material

hardness Shore A

colour

max. service temp. °C ¹⁾

max. linear force N/mm ²⁾

tensile strength ³⁾

tear resistance ⁴⁾

abrasion resistance Zwick ⁵⁾

compression set ⁶⁾

resilience ⁷⁾

electrical conductivity ⁸⁾

050 15

15 A

yellow

50

5

0

720 30

30 A

yellow

120

5

2

2

2

2

0

The physical characteristics and the chemical resistance values given in the table are empirical values and results from laboratory experiments. As the operating conditions vary from one user to another, the indications can only serve as guidelines. A guarantee cannot be issued. In the case of doubt, please contact our Application Technology Department in Cologne for a definitive material definition. The physical values and the chemical stability apply to the upper rubber layer in case of multilayer coverings.

Physical properties:

For tear resistance, elongation at tear and tensile strength the materials are classified in function of their hardness.  Therefore, only materials which have the same hardness can be compared with one another.

1. For polyurethane-materials: Dry/wet application

2. Linear force in N/mm applies for an average roller diameter of 300 mm, temperatures up to 50° C and revolutions up to 250 r.p.m.

3. Tensile strength  following DIN 53504

4. Tear resistance following DIN 53515

5. Abrasion following DIN 53516. The abrasion of materials with a hardness inferior to 50 Shore A cannot be tested in accordance with DIN-standards.

6. Compression set following DIN 53517 (22 h/70° C)

7. Resilience following DIN 53512

8. Specific electrical conductance following DIN/IEC 93; the classification of the values measured on special test flaps is as follows:

1 = conductive (electr. resistance <1/105 Ω/cm)

2 = semi-conductive (electr. resistance <1/109 Ω/cm)

0 = Insulator (electr. resistance >1/1012 Ω/cm)

The conductivity measured on the rollers may deviate from the values given here.  In the case of any ambiguity, please contact our Application Technology Department.

Chemical resistance:

9. Reference fluid IRM 903

10. Fuel No. 1 (Isooctane acc. to DIN 53521)

11. Alcohols as e. g. methyl alcohol (methanol), ethyl alcohol (ethanol), propyl- and isopropyl alcohol (propanol and isopropanol)

12. Ester and ketones as e. g. ethyl ester of acetic acid (ethyl acetat), butyl ester of acetic ester (butyl acetat), acetone, methyl ethyl ketone (MEK), methyl isobutyl ketone (MIBK)

13. Aromatic hydrocarbons as e. g. benzene, toluene, xylene, phenol

14. Ozone following DIN 53509, Part 1, process A

310 35

35 A

black

90

5

4

4

1

1

0

450 40

40 A

yellow

50

5

0

725 40

40 A

pink

130

10

2

2

2

2

0

490 50

50 A

black

110

10

2

2

2

1

2

1

731 50

50 A

grey

140

10

2

3

1

2

2

0

733 50

50 A

red

100

10

3

2

3

3

2

0

751 50

50 A

black

140

10

4

4

2

1

1

1

491 55

55 A

black

110

20

2

2

2

1

3

1

492 60

60 A

black

110

30

1

1

2

2

3

1

611 60

60 A

red

230

30

2

1

1

1

2

0

736 60

60 A

green

140

30

2

4

2

2

1

0

493 65

65 A

black

110

40

2

1

2

1

3

1

671 65

65 A

white

130

40

1

1

1

3

3

0

738 65

65 A

black

140

40

4

3

2

1

1

1

027 70

70 A

yellow

110

30

1

2

1

3

3

0

130 70

70 A

black

120

50

2

3

2

1

2

1

484 70

70 A

light grey

110

50

2

2

2

2

2

0

494 70

70 A

black

110

50

1

1

2

1

3

1

612 70

70 A

red

200

50

3

1

1

1

2

0

673 70

70 A

grey

130

40

2

1

3

3

3

0

675 70

70 A

black

200

50

2

1

2

3

4

0

684 70

70 A

grey

130

50

2

1

1

2

2

0

739 70

70 A

black

140

50

2

2

2

1

1

1

740 70

70 A

grey

140

50

2

3

2

2

2

0

741 70

70 A

brown

100

30

2

1

1

4

2

0

485 75

75 A

light grey

110

60

2

2

2

2

2

0

495 75

75 A

black

110

60

1

1

2

1

3

1

685 75

75 A

grey

130

60

2

1

1

2

2

0

790 75

75 A

black

100

60

1

2

1

1

3

2

382 80

80 A

black

110

70

1

2

2

1

4

2

486 80

80 A

light grey

110

80

2

2

2

2

2

0

496 80

80 A

black

110

70

2

1

1

1

3

1

572 80

80 A

yellow

110

70

2

2

2

3

4

0

613 80

80 A

red

200

30

3

3

1

1

2

0

676 80

80 A

black

200

70

2

1

2

4

4

0

686 80

80 A

grey

130

80

2

1

1

2

2

0

748 80

80 A

black

140

70

2

2

2

1

2

1

497 85

85 A

black

110

80

2

1

2

1

4

1

468 90

90 A

anthracite

160

120

1

1

1

1

2

0

488 90

90 A

light grey

110

90

2

2

2

2

2

0

539 90

90 A

black

110

80

1

1

2

2

2

0

585 90

90 A

grey

110

80

2

1

2

2

2

0

489 95

95 A

light grey

110

100

2

2

2

2

2

0

041 00

100 A

beige

90

70

0

Plastic Materials

984 90

90 A

blue

120/80

120

1

1

1

4

1

0

939 95

95 A

red

150

70

1

0

1

4

1

0

986 85

95 A

blue

120/80

120

1

1

1

4

1

0

Chemical Resistance

Rubber Compounds

material

mineral oil      50° C ⁹⁾

benzine RT ¹⁰⁾

alcohol ¹¹⁾

ester/ ketones RT ¹²⁾

arom. hydro-carbons ¹³⁾

water 95° C

caustic soda  5% 95° C

caustic soda 25%  95° C

sulfuric acid  5% 95° C

sulfuric acid 25%   95° C

hydro-chloric acid 20%  80° C

nitric acid 25% RT

phosphoric acid   2% 80° C

chromium acid 5%      80° C

nitric-nitrofluoric acid 20% /  4% 75° C

formic/ acetic acid 5% 95° C

hydro-genium peroxide  15% RT

ozone ¹⁴⁾

050 15

720 30

310 35

450 40

725 40

490 50

731 50

733 50

751 50

491 55

492 60

611 60

736 60

493 65

671 65

738 65

027 70

130 70

484 70

494 70

612 70

673 70

675 70

684 70

740 70

741 70

485 75

495 75

685 75

790 75

382 80

486 80

496 80

572 80

613 80

676 80

686 80

748 80

497 85

468 90

488 90

539 90

585 90

489 95

041 00

Plastic Materials

984 90

939 95

986 85