| RUBBER
COMPOUNDS FOR SPECIAL PURPOSES |
|
| Type of rubber |
Group |
Color |
Hardness, Shore Type A Units |
Tensile strength МРA |
Resistance to mineral oils |
Resistanceagainst
acids |
resistance against
alkalies |
service temperature
º С |
| NR |
IA |
light colored |
35-50 |
>10 |
* |
** |
** |
-40 up to 70 |
| IB |
light colored |
35-45 |
>16 |
* |
** |
** |
-40 up to 70 |
| IІ |
black |
40-55 |
>10 |
* |
** |
** |
-40 up to 70 |
| NR+BR |
II A |
black |
45-55 |
>10 |
* |
*** |
*** |
-40 up to 80 |
| IIB |
black |
50-60 |
>10 |
* |
*** |
*** |
-45 up to 80 |
| IR |
IІA |
black |
47-57 |
>18 |
* |
*** |
*** |
-30 up to 70 |
| IІB |
black |
62-70 |
>26 |
* |
*** |
*** |
-40 up to 70 |
| IR+SBR |
I |
grey |
42-52 |
>12 |
* |
*** |
*** |
-30 up to 70 |
| IIA |
grey |
50-60 |
>10 |
* |
*** |
*** |
-30 up to 70 |
| IIB |
black |
60-70 |
>10 |
* |
*** |
*** |
-30 up to 70 |
| IR+NBR |
II |
black |
47-57 |
>15 |
** |
**** |
*** |
-30 up to 70 |
| IIR |
І |
light colored |
39-45 |
>5 |
* |
**** |
**** |
-40 up to 100 |
| SBR |
IIIA |
black |
80-85 |
>7 |
* |
**** |
**** |
-30 up to 70 |
| ІІІB |
black |
74-84 |
>10 |
* |
**** |
**** |
- 50 up to 70 |
| CR |
ІІ |
black |
65-75 |
>8 |
*** |
*** |
*** |
-25 up to 80 |
| CR+NBR |
ІІ |
black |
55-67 |
>12 |
**** |
*** |
** |
-35 up to 90 |
| NBR 18 |
ІІІ |
black |
72-79 |
>11 |
*** |
*** |
** |
-40 up to 70 |
| NBR 26 |
ІІ |
black |
65-80 |
>12 |
*** |
** |
** |
-20 up to 80 |
| NBR 40 |
ІІІA |
black |
70-80 |
>10 |
**** |
** |
** |
-15 up to 90 |
|
ІІІB |
black |
80-92 |
>11 |
**** |
** |
** |
-15 up to 90 |
| NBR+PVC |
ІІІ |
black |
75-85 |
>12 |
**** |
*** |
** |
-15 up to 90 |
|
| REMARK: ”Zebra”AD
is able to produce rubber compounds according to customer formulations
too. |
| Legend: |
| Resistance to liquids |
Shore A units |
Tensile strength, Mpa |
| **** |
excellent |
I |
35-50 |
A |
<10 |
| *** |
good |
II |
50-70 |
B |
>12 |
| ** |
fair |
III |
70-95 |
C |
- |
| * |
poor |
- |
- |
- |
- |
|
| We control the mechanical properties
of the rubber compounds according to 100 % control of : |
| Property |
Method of control according to |
| Hardness |
BDS ISO 7619 |
| Tensile strength |
BDS ISO 37 |
| Relative elongation |
BDS ISO 37 |
| Determination of density |
BDS ISO 2781 |
| Abrasion resistance |
BDS ISO 4649 |
| Determination of the resistance to liquids |
BDS ISO 1817 |
| Brittleness temperature |
BDS ISO R 812 |
| Determination of rebound resilience |
BDS ISO 4662 |
| Heat ageing in specific media at elevated temperature |
BDS ISO 1817 |
| Permanent set at ambient and elevated temperature |
ISO 815 |
|
| Delivery form: |
| |
Width, mm |
Thickness, mm |
Length, mm. |
Packing |
Insulation |
| 1.Cut sheets |
750-800 |
4 - 12 |
1000-1200 |
Stacked on wooden pallets |
plastic foil |
| 2. Strip |
600-800 |
4 - 8 |
|
folded on wooden pallets |
powdered with chalk or Zn-stearate |
| 3.Calendered sheet |
800-1400 |
1- 3 |
30000 up to 50000 |
on wooden rolls |
plastic foil |
|
