FAQ: What is Oxidized Bitumen 115/15?

❓ What is Oxidized Bitumen 115/15?

🧪 Oxidized Bitumen 115/15 is a high-softening, low-penetration grade bitumen. It has a softening point of 115°C and a penetration value of 15 dmm. Manufacturers produce it by blowing air through heated bitumen, which strengthens its structure and boosts thermal resistance. This process makes it ideal for hot and static environments.

❓ Where do industries use Oxidized Bitumen 115/15?

🏗️ Many industries rely on this grade for pipe coatings, cable insulation, roofing membranes, and under-tile waterproofing systems. Because it resists heat and deformation, it’s perfect for applications that face extreme conditions over long periods.

❓ How does it compare with other bitumen grades?

🔍 Unlike softer grades like 85/25 or 90/40, 115/15 offers significantly more stiffness and thermal stability. While flexible grades allow movement, this one ensures long-term shape retention. As a result, it supports structures that need a firm, heatproof material.

❓ Can Oxidized Bitumen 115/15 withstand prolonged heat exposure?

🌡️ Yes, it performs exceptionally well in continuous high-temperature environments. It resists sagging, cracking, and softening even after years of exposure. This consistency helps protect components from thermal failure.

❓ How do professionals test 115/15 quality?

📊 Quality checks involve ASTM D5 for penetration, ASTM D36 for softening point, and ASTM D113 for ductility. These tests confirm that the bitumen performs to standard in tough industrial applications.