
Product Overview – Penetration 85/100 Bitumen
Penetration Grade 85/100 Bitumen is a relatively soft grade of bitumen, ideal for use in warmer climates where flexibility and workability are essential. The “85/100” refers to the penetration value, which indicates how far a standard needle penetrates the bitumen under specific conditions. With a penetration depth between 85 and 100 (measured in tenths of a millimeter), this grade offers excellent performance in high-temperature environments where softer asphalt is preferred to reduce cracking and fatigue.
Consistency Classification and Testing Method
Bitumen penetration grades are determined according to the ASTM D5-18 standard, using a laboratory test in which a 100g needle is applied to a bitumen sample at 25°C for 5 seconds. The depth the needle penetrates indicates the bitumen’s softness or hardness. Grades like 85/100 fall on the softer side of the scale, providing improved flexibility, easier application, and better adhesion on hot surfaces.
Applications and Performance Benefits
Bitumen 85/100 is commonly used in road construction, especially in tropical or moderate climates, where it ensures smoother performance under heat and traffic stress. It’s also suitable for asphalt mixtures, surface treatments, and waterproofing systems that require higher penetration values. At iranbitumen.net, we supply Penetration Grade 85/100 in multiple export-ready packaging formats—drums, jumbo bags, and bitutainers—and we make it easy for international buyers to buy bitumen with confidence. With a reputation as a reliable bitumen dealer, we specialize in helping clients export bitumen globally with secure payment options and timely delivery.

