Oxidized bitumen 115/15 is based on petroleum bitumen which is made by blowing bitumen 60/70 by very hot air.

The most oxidized bitumen usable grade is bitumen 115/15 and 70% of our capacity is dedicated for this grade. 

Oxidized bitumen 115/15 is using in roofing manufacturing plants to produce shingles, roll goods, built-up roofing felts, and under layment felts, these oxidized asphalt 115/15 are shipped cold in bag and heating to became hot until used in the manufacturing process . 

Most blown bitumen 115/15 used to produce “mopping-grade” roofing asphalts. 

These bitumen 115/15 are generally shipped as a solid and heated in a kettle at the work site.