| Nebar - Cork - elastomer Jointings—Technical Details |
| This table shows the 10 standard grades of Nebar together with a range of standard physical properties and supply details |
|
Nebar Grade |
Type |
Base Elastomer |
ASTM
D1415
Hardness °IRHD
|
ASTM F152 Minimum Tensile Strength Mpa |
ASTM F36 |
Low Temperature Flexibility °C (see note 3) |
Maximum Operating Temp in Fluids °C |
Fluid Resistance Volume Swells ASTM F146 (%) |
Sheet Size (mm) |
Supply Details |
||||
|
Percentage Compressibility @ 2.8 N/mm2 |
Minimum Percentage Recovery |
ASTM 1 72 Hours @ 100°C |
ASTM3 72 Hours @ 100°C |
Fuel A 22 Hours @ Ambient Temperature |
BS148 Transformer Oil 14 Days @ 90°C |
Standard Thicknesses (mm) |
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|
Yellow |
Premium Nitrile |
Nitrile + SBR |
60 75 |
1.72 |
20 30 |
75 |
-20 |
110 |
-5 to + 15 |
+5 to +20 |
+5 to +15 |
+1 |
1200 x 1000 |
0.75, 1.00, 1.50, 3.00 |
|
Black |
High Performance Electrical |
Nitrile + Polychloroprene |
65 80 |
2.45 |
15 25 |
85 |
-15 |
110 |
-2.7 |
+10.5 |
+1 |
+1.2 |
1200
x 1000
1800 x 1000
1200 x 1200
|
2.50
3.00
5.00
|
|
Red |
High Pressure |
Polychloroprene |
70 85 |
2.35 |
10 30 |
80 |
-30 |
110 |
-5 to +5 |
+10 to +30 |
0 to +10 |
+10 |
1200
x 1000
1200 x 1200
|
0.75
1.5, 2.5, 3.00, 6.00, 6.40, 9.50, 22.00
|
|
Brown |
General Purpose |
<3mm Nitrile + SBR >3mm Polychloroprene + Nitrile |
65 85 |
1.75 |
15 30 |
75 |
-20 |
110 |
-3 to +10 |
0 to +30 |
-5 to +15 |
+8 to +25 |
1200
x 1200
900 x 9000
|
0.75,
1.00, 1.50, 2.00, 2.50, 3.00, 4.00, 5.00, 6.00, 6.40
0.75, 1.50, 2.00, 3.00, 5.00
|
|
White |
Premium Neoprene Electrical |
Polychloroprene + Nitrile |
65 85 |
1.75 |
20 30 |
80 |
-30 |
105 |
-5 to +10 |
+10 to +30 |
0 to +10 |
+10 |
1200 x 1200 |
0.75, 1.50, 2.00, 3.00, 4.00, 5.00, 6.00, 6.40, 8.00, 9.50 |
|
Purple |
Nitrile Electrical |
Nitrile + SBR |
60 80 |
2 |
15 25 |
75 |
-20 |
120 |
-5 to +15 |
+5 to +20 |
+5 to +15 |
+1 to +10 |
1200
x 900
1270 x 1014
|
1.50,
3.00, 4.00, 5.00, 6.00, 6.40
1.50, 5.00
|
|
Orange |
Neoprene Electrical |
Polychloroprene + Nitrile + SBR |
65 - 80 |
>2 |
20 35 |
75 |
-30 |
110 |
-5 to +10 |
0 to +30 |
0 to +15 |
+5 to +15 |
1200 x 1200 |
1.50, 2.00, 2.50, 3.00, 5.00, 6.00, 9.50 |
|
Grey |
Premium Nitrile Electrical |
Nitrile |
70 75 |
2.45 |
20 30 |
85 |
-25 |
110 |
-2 to +10 |
-2 to +15 |
-2 to +10 |
+2.4 |
1200 x 900 |
1.50, 3.00, 5.00, 6.00 |
|
Blue |
Unleaded Services |
Nitrile |
60 75 |
1.75 |
25 40 |
75 |
-5 |
115 |
-5 to +5 |
-2 to +15 |
-2 to +10 |
+0.8 |
1200
x 1000
1200 x 1200
|
2.00
3.00, 8.00
|
|
Green |
Sponge |
Polychloroprene |
30 45 |
0.53 |
35 50* |
75 |
-30 |
100 |
-10 to +10 |
+15 to +50 |
0 to +25 |
+15 |
1200 x 1000 |
3.00, 5.00, 6.4 |
| 1. All grades flexible at ambient temperature when placed around a mandrel of diameter equal to three times its thickness. |
| 2. Low Temperature flexibility shown is the temperature at which material remains flexible when placed around a mandrel of diameter equal to six times its thickness. |
| 3. Refer to the product information sheets for specification compliance. |
| *. Compressibility at 0.7N/mm2 |