Formulation | Ingredient, *pphr | |||||||
NR | Inner tube crumb | Zinc oxide | Stearic acid | Sulphur | TMTD | N330 | Vulkacit H/30 | |
A | 100 | 300 | 12 | 2 | 8 | 2 | 200 | 12 |
B | 100 | 300 | 16 | 5 | 10 | 3 | 200 | 12 |
C | 100 | 300 | 20 | 8 | 12 | 4 | 200 | 12 |