NR
NR or Natural Rubber Polyisoprene.
It is obtained as latex liquid which comes from rubber trees. Of the different species that contain the liquid, only the Hevea Brasiliensis is commercially exploited.
Originally from the Amazon region, it is now cultivated intensively in South East Asia and Africa.
- Excellent mechanical properties.
-
Available in a wide range of hardnesses from 35º to 90º Sh.A.
-
Low compression set and high resilience.
-
Excellent dynamic and rebound properties.
-
Temperature range: -50º C to +90º C.
-
Resistance to chemicals; good resistance to acids, alkalis and salts. Its contact with oils and hydrocarbons is not advisable.
| Ref. |
Specific Gravity |
Hardness |
Tens. Stren. |
Elong. |
Tear. Stren |
Abras.Resist.
mm3 |
Compres. Set |
Working
Temp. |
| |
g/cm3 |
Shore A |
M Pa |
% |
N/mm |
5 N |
10 N |
C |
h |
% |
º C |
| R353 |
1,00 |
38 |
20 |
650 |
20 |
70 |
|
70 |
22 |
25 |
-30/90 |
| R395 |
1,00 |
35 |
20 |
625 |
25 |
150 |
|
70 |
22 |
30 |
-40/80 |
| R431 |
1,03 |
45 |
16 |
600 |
27 |
90 |
|
70 |
22 |
35 |
-50/85 |
| R650 |
1,12 |
62 |
18 |
400 |
50 |
|
90 |
70 |
22 |
30 |
-50/85 |
| R698 |
1,21 |
60 |
15 |
400 |
40 |
|
130 |
70 |
22 |
35 |
-40/85 |
| R721 |
1,16 |
70 |
18 |
350 |
45 |
|
110 |
70 |
22 |
35 |
-50/90 |
| R847 |
1,15 |
80 |
15 |
240 |
30 |
|
120 |
70 |
22 |
40 |
-40/80 |
| Ref. |
Specific Gravity |
Hardness |
Tens. Stren. |
Elong. |
Tear. Stren |
Abras.Resist.
mm3 |
Compres. Set |
Working
Temp. |
| |
g/cm3 |
Shore A |
M Pa |
% |
N/mm |
5 N |
10 N |
C |
h |
% |
º C |
| R439 |
1,18 |
50 |
8,5 |
400 |
30 |
125 |
|
70 |
22 |
40 |
-40/70 |
| R608 |
1,49 |
65 |
4 |
200 |
12 |
|
480 |
70 |
22 |
43 |
-25/70 |
| Ref. |
Specific Gravity |
Hardness |
Tens. Stren. |
Elong. |
Tear. Stren |
Abras.Resist.
mm3 |
Compres. Set |
Working
Temp. |
| |
g/cm3 |
Shore A |
M Pa |
% |
N/mm |
5 N |
10 N |
C |
h |
% |
º C |
| R399 Natur. |
0,95 |
35 |
20 |
600 |
30 |
100 |
|
70 |
22 |
30 |
-40/80 |
| R499 Natur. |
1,00 |
43 |
20 |
650 |
30 |
80 |
|
70 |
22 |
30 |
-40/80 |
| R490 Natur. |
1,05 |
45 |
16 |
600 |
25 |
83 |
|
70 |
22 |
30 |
-40/85 |
| R397 Red |
0,95 |
35 |
24 |
700 |
30 |
60 |
|
70 |
22 |
30 |
-40/80 |
| R504 Red |
1,01 |
40 |
20 |
650 |
30 |
80 |
|
70 |
22 |
30 |
-40/80 |
| R492 Red |
1,05 |
45 |
16 |
600 |
25 |
83 |
|
70 |
22 |
30 |
-40/85 |
| R320 White |
0,95 |
40 |
19 |
600 |
32 |
110 |
|
70 |
22 |
25 |
-40/80 |
| R503 White |
1,04 |
40 |
20 |
650 |
30 |
80 |
|
70 |
22 |
30 |
-40/80 |
| R642 White |
1,30 |
65 |
10 |
600 |
26 |
|
200 |
70 |
22 |
35 |
-45/80 |
| R742 White |
1,30 |
75 |
10 |
300 |
25 |
|
200 |
70 |
22 |
35 |
-45/80 |
| R491 Yellow |
1,05 |
45 |
16 |
600 |
25 |
83 |
|
70 |
22 |
30 |
-40/85 |
| R398 Green |
0,95 |
35 |
24 |
700 |
30 |
60 |
|
70 |
22 |
30 |
-40/80 |
| R493 Green |
1,05 |
45 |
16 |
600 |
25 |
83 |
|
70 |
22 |
30 |
-40/85 |
| R506 Green |
1,01 |
40 |
20 |
650 |
30 |
80 |
|
70 |
22 |
30 |
-40/80 |
| R570 Green |
1,20 |
55 |
13 |
450 |
30 |
170 |
|
70 |
22 |
40 |
-40/80 |
| Ref. |
Specific Gravity |
Hardness |
Tens. Stren. |
Elong. |
Tear. Stren |
Abras.Resist.
mm3 |
Compres. Set |
Working
Temp. |
| |
g/cm3 |
Shore A |
M Pa |
% |
N/mm |
5 N |
10 N |
C |
h |
% |
º C |
| R449 Red |
1,28 |
50 |
10 |
500 |
15 |
250 |
|
70 |
22 |
40 |
-40/80 |
| R670 Red |
1,62 |
70 |
4,8 |
200 |
|
|
|
70 |
22 |
40 |
-30/70 |
| R448 White |
1,31 |
50 |
10 |
500 |
15 |
250 |
|
70 |
22 |
40 |
-40/80 |
| R661 White |
1,61 |
68 |
5 |
220 |
12 |
|
490 |
70 |
22 |
55 |
-25/70 |
| R572 Yellow |
1,26 |
45 |
13 |
500 |
20 |
225 |
|
70 |
22 |
40 |
-40/80 |
The current technical information has been carefully checked and given in good faith but it is not exempted from possible typing errors.
Historically, compounds have different commercial names in each market.
Our sales department can help you to find the quality that you need.
Please,
contact us and we will be more than happy to help you in anyway we can.