Oxidized bitumen

Blown bitumen grade 115/15, 90/40, 150/5, 85/25, 90/15, 75/25, 95/25

Oxidized bitumen 85/35

BS group Oxidized Bitumen 85/35 is suitable for sealing saw cuts and joints where there is expected to be the minimum amount of moving in the joint. BS group Blown bitumen grade R85/35 or Oxidized Bitumen 85/35 is produced by passing air through the penetration grades.

This process gives the bitumen more rubbery properties than its original formula and bitumen R85/35 are simply harder bitumen.

Oxidised Bitumen is shown by R(SP)(PEN) in which SP is Softening and PEN is Penetration as a result R85/35 mean an oxidized bitumen with Softening point=85 and Penetration=35.



Typical properties of oxidized bitumen 85/35

BS group oxidised bitumen 85/35 is made according to BS EN 13304:2009 standard and we guarantee that it meets the following specification requirements:



Test Method



Specific gravity at 25/25 C

EN 15326


1.05 approx.

Penetration at 25°c

EN 1426



Softening point °c

EN 1427



Loss on heating (wt) %

EN 13303

Wt. %

0.2 max

Flashpoint c


EN ISO 2592


250 min

Solubility is CS2 (wt) %

EN 12592

Wt. %

99.5 max

Stop test

A.A.S.H.O.T 102






Oxidised asphalt 85/35 uses in the chemical, fuel, lacquers, varnishes, paint paper-pulp-board, textile processing, road construction, pavement, civil works, roofing, construction industries; sealing and insulating buildings, adhesive, crack seal and repairmen, construction materials additive, dust-binding, insulating and impregnating agent, make rubber and plastic products. The asphalt R85/35 products are for paving. also used in asphalt-based paints for corrosion protection of metals, in lining public works structures, adhesives in electrical laminates, base for synthetic turf; typical uses for oxidized bitumen 85/35 used also for water-proof application and corrosion resistance for pipe coating, Portland cement pavement, hydraulic applications, paint manufacturing, caulking, mastics, and damp proofing. Blown bitumen R 85/35 is using insulation and isolation bitumen membrane sheet. Also, Car undercoating Automobile industry is specially required for Blown Asphalt. Vehicle undercoating material is based on Bitumen. Bitumen provides excellent waterproof, dust proof and noise proof for automobile undercoating.

Notice: The oxidized bitumen should be heated double temperature against the softening point to be able to have flow and viscosity.




BS group Oxidized Bitumen 85/35 is available in:

  • New Steel Drums (185 or 200 Kg)
  • Melt-able and craft bag
  • Craft box




The Delivery can be done in all terms like: FOB, CFR and CIF for more information feel free to send us your inquiry.


Contact information

BS group provides wide range of bituminous products and offers road maintenance solutions to clients base on their needs
Address: No1, Mobtakeran 4 St, Birjand industrial zone, Iran
Phone: +98-5632420200
Fax: +98-5632255130
Email: info[at]bsgroup.co.ir