| RUBBER
COMPOUNDS FOR GENERAL
USE |
|
|
| Type of rubber |
Group |
Color |
Hardness Shore Type A units |
Tensile strength, MPa |
Resistance to mineral oils |
Resistance against acids |
Resistance against alkalies
|
Abrasion resistance |
Service temperature |
| NR |
I |
black
|
35-50 |
>15 |
* |
*** |
*** |
** |
*** |
|
II |
black
|
50-70 |
>15 |
* |
*** |
*** |
*** |
** |
|
III |
black
|
80-90 |
>5 |
* |
*** |
*** |
*** |
** |
|
IR |
I |
red |
40-50 |
>6 |
** |
** |
** |
** |
** |
|
IIA |
black |
45-55 |
>10 |
*** |
*** |
*** |
** |
*** |
|
IIB |
|
55-65 |
>16 |
** |
**** |
*** |
** |
** |
| NR+IR |
IA |
natural |
35-40 |
>11 |
* |
*** |
** |
** |
** |
|
IB |
white |
40-50 |
>11 |
* |
*** |
** |
** |
** |
| SBR |
I |
black |
45-55 |
>5 |
* |
** |
** |
** |
** |
|
IIA |
black/
colored |
60-70 |
>4 |
* |
** |
** |
** |
* |
|
IIB |
black |
65-75 |
>10 |
* |
** |
** |
** |
** |
|
IIIA |
black/
colored |
80-86 |
>4 |
* |
*** |
** |
*** |
** |
|
IIIB |
black |
80-86 |
>18 |
* |
*** |
*** |
*** |
** |
|
IIIC |
white & colored |
87-93 |
>4 |
* |
** |
** |
** |
** |
| SBR+
NR |
IIA |
colored |
>60 |
>5 |
* |
** |
** |
*** |
** |
|
IIB |
black |
65-75 |
>4 |
* |
** |
** |
*** |
** |
|
IIC |
black/
green |
50-60 |
>10(6) |
* |
** |
** |
** |
** |
| SBR
+ IR |
I |
colored /black |
45-55 |
>12 |
* |
*** |
** |
** |
*** |
|
II |
black |
65-75 |
>11 |
* |
*** |
*** |
*** |
** |
|
IIIA |
black |
75-85 |
>11 |
* |
*** |
*** |
*** |
** |
|
IIIB |
black |
85-95 |
>10 |
* |
*** |
*** |
*** |
** |
| SBR+NBR |
IIA |
white/
black |
55-65 |
>5 |
*** |
*** |
*** |
** |
*** |
| IIB |
colored/
black |
65-75 |
>5 |
*** |
** |
** |
** |
*** |
| IIC |
black |
65-75 |
>12 |
*** |
** |
** |
*** |
** |
| NBR |
I |
black |
40-55 |
>6 |
**** |
** |
** |
** |
*** |
| IIA |
blue |
55-65 |
>8 |
**** |
** |
** |
** |
*** |
| IIB |
black |
65-75 |
>8 |
**** |
** |
** |
** |
*** |
| IIIA |
black |
70-80 |
>10 |
**** |
** |
** |
*** |
*** |
| IIIB |
natural |
78-86 |
>14 |
**** |
*** |
*** |
*** |
*** |
| IIIC |
black |
80-92 |
>11 |
**** |
** |
** |
*** |
*** |
| NBR+IR |
II |
black |
47-57 |
>15 |
** |
*** |
* |
** |
*** |
|
СR |
I |
white |
42-48 |
>13 |
*** |
*** |
** |
* |
*** |
| IIA |
colored/
black |
55-65 |
>12 |
*** |
*** |
** |
** |
*** |
| IIB |
black |
60-70 |
>12(7) |
*** |
*** |
** |
** |
*** |
| III |
black |
77-83 |
>12 |
*** |
*** |
** |
** |
*** |
| CR+NBR |
II |
black |
55-67 |
>9 |
*** |
** |
** |
** |
*** |
| CR+NR |
I |
green |
42-46 |
>8 |
** |
*** |
** |
* |
** |
| IIA |
green |
70-75 |
>4 |
** |
*** |
** |
* |
** |
| IIB |
green |
50-55 |
>8 |
** |
*** |
** |
* |
** |
| IIC |
colored/
black |
50-65 |
>12(9) |
** |
*** |
** |
** |
*** |
| III |
black |
80-92 |
>11 |
**** |
** |
** |
*** |
*** |
| EPDM |
II |
black |
60-70 |
>7 |
* |
**** |
**** |
* |
*** |
| SBR+EPDM |
II |
grey/
black |
55-65 |
>3,5 |
* |
*** |
*** |
** |
** |
| NR+BR |
II |
natural |
40-65 |
>8 |
* |
**** |
*** |
** |
** |
| IR+BR |
IIA |
black |
>65 |
>12 |
* |
**** |
*** |
*** |
** |
| IIB |
black |
65-75 |
>14 |
* |
**** |
*** |
*** |
** |
| IIC |
black |
57-70 |
>16 |
* |
*** |
*** |
*** |
** |
| SBR+BR |
IIA |
black |
58-68 |
>12 |
* |
*** |
*** |
*** |
** |
| IIB |
black |
58-68 |
>15 |
* |
*** |
*** |
**** |
** |
| IR+SBR+BR |
IIA |
black |
55-65 |
>15 |
* |
*** |
*** |
*** |
** |
| IIB |
black |
58-68 |
>15 |
* |
*** |
*** |
**** |
** |
| III |
black |
68-78 |
>9 |
* |
*** |
** |
*** |
** |
| ebonite |
III |
natural |
- |
- |
*** |
**** |
**** |
*** |
**** |
|
|
| 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: |
| Property |
Method of control according to |
| Hardness |
BDSISO 7619 |
| Tensile strength |
BDSISO 37 |
| Relative elongation |
BDS ISO 37 |
| Determination of density |
BDS ISO 2781 |
| Abrasion resistance |
BDSISO 4649 |
| Determination of the resistance to liquids |
BDS ISO 1817 |
| Brittlenesstemperature |
BDS ISO R 812 |
| Determination of rebound resilience |
BDS ISO 4662 |
| Heat ageing in specific mediaat 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. Strips |
600-800 |
4 - 8 |
|
folded
on wooden pallets |
powdered
with chalk or Zn-strearate |
| 3.Calenendered
sheet |
800-1400 |
1- 3 |
30000
up to 50000 |
on wooden
rolls |
plastic
foil |
|
|
