FAQ: What is Oxidized Bitumen 105/15?

❓ What is Oxidized Bitumen 105/15?

🧪 Oxidized Bitumen 105/15 is a very hard, high-softening-point bitumen produced through controlled air-blowing. This process raises its softening point to 105°C and gives it a low penetration value of 15, which indicates extreme hardness. As a result, it suits applications requiring excellent thermal resistance and rigidity.

❓ Where is Oxidized Bitumen 105/15 commonly used?

🏗️ You’ll often find this grade in protective pipe coatings, industrial flooring, cable insulation, and bituminous mastics. Its high-temperature tolerance makes it ideal for hot climates and harsh processing environments. Moreover, it offers reliable performance in heavy-duty, non-flexible applications.

❓ How does Oxidized Bitumen 105/15 differ from softer grades?

🔍 Compared to grades like 90/40 or 85/25, 105/15 is significantly harder and more heat-resistant. It lacks flexibility, but that trade-off ensures stability under intense heat and pressure. Because of these qualities, it works best in applications where movement and expansion are minimal.

❓ Can Oxidized Bitumen 105/15 resist deformation over time?

🌡️ Yes, this grade maintains its shape even under prolonged heat and heavy loads. Its stiff structure prevents sagging, dripping, or cracking. Therefore, industries use it to protect structural components exposed to extreme operational conditions.

❓ How is the quality of 105/15 verified?

📊 Specialists test it using standard methods like ASTM D5 for penetration, ASTM D36 for softening point, and ASTM D6/D113 for ductility. These tests help confirm the material’s compliance with performance and safety standards. Consistent results ensure it performs as expected in industrial use.