Vacuum-distillation residuum: asphaltenes (polar, aromatic, high MW) dispersed in maltenes. Road paving, roofing. Performance-graded by high/low service temperatures (PG 64-22).
Vacuum-distillation residuum: asphaltenes (polar, aromatic, high MW) dispersed in maltenes. Road paving, roofing. Performance-graded by high/low service temperatures (PG 64-22).