Oxidized
Bitumen 85/40
Petra Oil’s Oxidized Bitumen 85/40 is a versatile, semi-solid binder produced by air-blowing bitumen under controlled conditions. With a softening point of 85°C and a penetration value of 40 dmm at 25°C, this grade offers a balance between flexibility and rigidity, making it suitable for a wide range of applications.
Manufactured in compliance with ASTM D36 and D5 standards, Oxidized Bitumen 85/40 is commonly used in waterproofing membranes, joint sealants, roofing materials, and adhesives. Its high flash point of 260°C ensures safety during handling and application.
Key Specifications:
- Softening Point: 85°C
- Penetration: 40 dmm at 25°C
- Flash Point: ≥260°C
- Solubility in CS₂: ≥99%
- Ductility: ≥3 cm at 25°C
- Loss on Heating: ≤0.2%
Main Applications:
- Waterproofing Membranes: Provides effective moisture barriers for foundations and basements.
- Joint Sealants: Offers flexibility and adhesion for sealing expansion joints.
- Roofing Materials: Used in modified bitumen roofing systems.
- Adhesives: Serves as a base for adhesives in construction and manufacturing.
Key Benefits:
- Balanced Flexibility and Rigidity: Adapts to various environmental conditions.
- Excellent Adhesion: Bonds effectively to a wide range of substrates.
- High Thermal Stability: Resists softening in hot climates.
- Long Service Life: Reduces maintenance and replacement costs.
Specification
No |
Description |
Unit |
85/40 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
|
