Bitumen Penetration Grade 80/100 or as per ASTM Bitumen Penetration Grade 85/100 is a standard penetration grade Bitumen usually used as a Paving Grade Bitumen suitable for road construction and for the production of asphalt pavements with superior properties. This grade of Bitumen is mainly used in the spraying and chip applications. Penetration Grade Bitumen supplied by Kariouz Trading is petroleum grade bitumen, manufactured from fractional / vacuum distillation of crude oil. The Bitumen supplied by Kariouz Trading is produced from vacuum residue (short residue) feedstock. Penetration Grade bitumen’s are specified by the penetration and softening point test. Designation is by penetration range only. The penetration grade bitumen’s have a thermoplastic property which causes the material to soften at high temperatures and to harden at lower temperatures. This unique temperature/ viscosity relationship is important when determining the performance parameters such as the adhesion, rheology, durability and application temperatures of bitumen.