Our Blown Bitumen or Oxidized Bitumen is made by modification of rheological properties by reaction with air at elevated temperatures. Oxidized bitumen has a penetration index (Ip) > +2.0. We produce nine grades of Blown Bitumen to our customers in Europe to manufacture membranes, shingles, roofing applications and HMA binders.
This product can be used as a replacement of Bitumen or a major binder for Bitumen. We offer Blown Bitumen in different packaging and deliver in PP, Jumbo and Craft bags. These products are also available in cylindrical craft, drums and tankers.
Blowing air through the bitumen mix gives it higher viscosity and greater resistance to softening (particularly for road applications), and secondary processes involving specially developed additives or emulsifying with water.