Oxidized
Bitumen 90/25
Petra Oil’s Oxidized Bitumen 90/25 is a high-quality, semi-solid oxidized bitumen produced through a controlled air-blowing process. With a softening point of 90°C and a penetration value of 25 dmm at 25°C, this grade offers a perfect balance of hardness and flexibility. Bitumen 90/25 is widely used in construction, waterproofing, pipe coating, and various industrial applications that require long-term thermal stability and moisture resistance.
This grade is designed to perform in environments subject to temperature variations, where a firm yet pliable material is essential to prevent cracking and deformation. Bitumen 90/25 remains stable under high temperatures and exhibits excellent resistance to aging, oxidation, and water penetration. Compliant with ASTM D36 and D5 standards, Bitumen 90/25 ensures consistent performance and workability in both factory-based and field-applied scenarios.
Key Specifications:
- Softening Point: ~90°C
- Penetration: ~25 dmm at 25°C
- Standard Compliance: ASTM D36 / D5
- Form: Solid at ambient temperature
Main Applications:
- Waterproofing membranes and roofing felts
- Joint filler and expansion joint compounds
- Pipe insulation and anti-corrosion coatings
- Bituminous mastics and industrial adhesives
Key Benefits:
- Balanced Rigidity and Flexibility: Ideal for areas requiring durable, semi-flexible materials.
- Excellent Thermal Stability: Maintains performance under prolonged heat exposure.
- High Water and Chemical Resistance: Ensures long-lasting protection in demanding environments.
- Versatile Application: Suitable for both manual and machine-based application systems.
Specification
No |
Description |
Unit |
90/25 Grade |
Test Method |
|---|---|---|---|---|
1
|
Specific Gravity @ 25°C
|
Kg/Cm3
|
1.05 aprx
|
ASTM D70
EN 15326
|
2
|
Penetration @ 25°C
|
MM/10
|
20/30
|
ASTM D5
EN 1426
|
3
|
Softening Point °C
|
°C
|
20/30
|
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
|
