| Grade TG-7720 |
Specification |
Typical Result * |
Test Method |
| Binder.............................................. |
NBR |
NBR |
|
| Cork Grain Size............................... |
0.5 to 1 mm |
0.5 to1 mm |
|
Physical Characteristics
Hardness, Shore A...................................
Compressibility at 400 PSI(%)..................
Recovery after (%)...................................
Tensile Strength (Kg/cm2)........................ |
70 +/- 5
25 ~ 35
80 min
15.80 min |
71
29.35
88.70
24.51 |
IS: 3400(Part II)-1965
IS:4253(Part II)-1980
(clause 7.5)
IS:4253(Part II)-1980
(clause 7.5)
IS:4253(Part II)-1980
(clause 7.4) |
| Flexibility (Thickness X 3) |
No Cracks |
No Cracks |
IS:4253(Part II)-1980
(clause 7.7) |
Volume Change After Immersion
Tansformer Oil,70 hrs @ 90 deg C( %).
ASTM no.3 Oil,70 hrs @100deg C( %). |
8% Max
15% Max |
5.36
11.52 |
IS:4253(Part II)-1980
(clause 7.8) |
