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Petra Oil

Oxidized-Bitumen 105/35

Oxidized

Bitumen 105/35

Petra Oil’s Oxidized Bitumen 105/35 is a premium-grade, semi-hard oxidized bitumen formulated for applications where enhanced flexibility and moderate thermal performance are needed. With a softening point of approximately 105°C and a penetration of 35 dmm at 25°C, Bitumen 105/35 strikes a practical balance between hardness and elasticity, making it ideal for environments with moderate temperature variations.

 

This grade is created by blowing hot air through pure bitumen, modifying its chemical structure to improve performance in roofing, sealing, flooring, and anti-corrosion treatments. Bitumen 105/35 offers dependable performance in damp and humid conditions and is frequently used in damp-proofing, bridge deck protection, and as an additive in bituminous mastics and adhesives. Produced in accordance with ASTM standards, Bitumen 105/35 is known for its consistency, reliable bonding characteristics, and long shelf life.

Key Specifications:

  • Grade: Oxidized Bitumen 105/35
  • Softening Point: ~105°C
  • Penetration: ~35 dmm at 25°C
  • Standard Compliance: ASTM D36 / D5
  • Form: Solid block or slab

Main Applications:

  • Bridge Deck Waterproofing Systems: Protects concrete structures from moisture penetration.
  • Adhesive Formulations: Used in the production of solvent-based adhesives and mastics.
  • Roofing and Damp-Proofing Products: Ensures protection against moisture ingress.
  • Pipe Coating for Industrial Installations: Provides corrosion protection in humid environments.

Key Benefits:

  • Balanced Flexibility and Rigidity: Performs well in applications needing both strength and movement tolerance.
  • High Chemical Resistance: Protects surfaces against water, alkalis, and mild acids.
  • Excellent Bonding Properties: Ensures long-lasting adherence to concrete, steel, and masonry.
  • Versatile Use: Suitable for manufacturing, infrastructure, and construction industries.

Specification

No
Description
Unit
105/35 Grade
Test Method
1
Specific Gravity @ 25°C
Kg/Cm3
1.05 aprx
ASTM D70 EN 15326
2
Penetration @ 25°C
MM/10
30/40
ASTM D5 EN 1426
3
Softening Point °C
°C
100/110
ASTM D36 EN 1427
4
Loss on Heating (wt) %
WT %
0.2 Max
ASTM D6 EN 13303
5
Flash Point °C
°C
250 Min
ASTM D92 EN ISO 2592
6
Solubility is CS2 (wt) %
WT %
99.5 Min
ASTM D4 EN 12592
7
Spot Test
@
Negative
AASHOT 102