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Petra Oil

Oxidized-Bitumen 90/40

Oxidized

Bitumen 90/40

Petra Oil’s Oxidized Bitumen 90/40 is a softer oxidized bitumen designed for use in applications where enhanced flexibility and moderate thermal resistance are required. Featuring a softening point of 90°C and a penetration of 40 dmm at 25°C, Bitumen 90/40 is suitable for dynamic surfaces and structures that experience minor movement or frequent thermal cycling.

 

Its viscoelastic properties make it a top choice for flexible sealing compounds, expansion joints, damp-proofing layers, and other industrial applications that demand elasticity without sacrificing resistance to environmental factors. This bitumen grade can be easily heated, poured, and applied with conventional tools and is known for its strong bonding to concrete, metals, and masonry. Manufactured according to ASTM D36 and D5, Bitumen 90/40 ensures consistent quality and process efficiency across a range of construction and industrial processes.

Key Specifications:

  • Softening Point: ~90°C
  • Penetration: ~40 dmm at 25°C
  • Compliance: ASTM D36 / D5
  • Form: Semi-solid block

Main Applications:

  • Expansion joints and flexible seals
  • Pipe coatings and duct linings
  • Waterproofing membranes in flexible systems
  • Asphalt modification in low-traffic roads

Key Benefits:

  • Enhanced Flexibility: Prevents cracking in dynamic or moving surfaces.
  • Easy Application: Can be melted and applied with minimal equipment.
  • Moisture and UV Resistant: Withstands harsh environmental exposure.
  • Adapts to Substrate Movement: Maintains integrity in both warm and cool climates.

Specification

No
Description
Unit
90/40 Grade
Test Method
1
Specific Gravity @ 25°C
Kg/Cm3
1.05 aprx
ASTM D70 EN 15326
2
Penetration @ 25°C
MM/10
35/45
ASTM D5 EN 1426
3
Softening Point °C
°C
85/95
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