FAQ: What is Oxidized Bitumen 75/25?

❓ What is Oxidized Bitumen 75/25?

🧪 Blown Asphalt 75/25 is a hard, semi-solid grade of bitumen created by blowing air through penetration bitumen at high temperatures. The numbers 75/25 refer to its softening point (75°C) and penetration value (25 in 1/10 mm). This product offers high thermal stability and resistance to water. As a result, industries use it where performance under heat and pressure is critical.

❓ Where is Oxidized Bitumen 75/25 commonly used?

🏗️ Many industries use Blown Asphalt 75/25 in waterproofing, pipe coating, electrical applications, and flooring. It’s especially useful in environments where materials face high temperatures or require strong adhesion. Because of its hardness, it stays stable under heavy loads. You’ll often find it in roofing, bridge decks, and concrete joint sealants.

❓ How is Oxidized Bitumen 75/25 different from regular bitumen?

🔬 Unlike standard penetration bitumen, oxidized grades like 75/25 undergo a controlled air-blowing process. This changes their chemical structure and improves thermal resistance. It also gives them a rubbery texture and higher softening points. These properties make them ideal for industrial applications, not just paving.

❓ Can Oxidized Bitumen 75/25 handle high heat?

🔥 Yes, it performs well under high temperatures. Its high softening point (around 75°C) means it resists melting or deformation. This makes it ideal for processes where heat exposure is continuous. As a result, it’s a reliable choice for industrial insulation and sealing work.

❓ How do engineers test the quality of Oxidized Bitumen 75/25?

📊 Experts check Blown Asphalt 75/25 softening point, penetration value, ductility, and specific gravity. These tests confirm the material’s strength, flexibility, and stability. By following ASTM or EN standards, manufacturers ensure consistent quality. Reliable testing gives project managers confidence in long-term performance.