PMB 65/105 Polymer Modified Bitumen Supplier and Exporter

PMB 65/105 is a soft, highly elastic grade in the Tiger Bitumen range of Polymer Modified Bitumen. Its penetration range is 65 to 105 tenths of a millimetre (0.1 mm) at 25 °C. Compared with harder grades such as PMB 45/80, it offers a softer consistency. Depending on its formulation, polymer modification can improve cohesion, elastic recovery and low-temperature performance. Engineers may specify this grade for thin, gap-graded and porous asphalt wearing courses when the project requirements support its use.

Key Characteristics and Benefits

• Soft, high-penetration binder: The 65–105 (0.1 mm at 25 °C) range provides a softer consistency than harder PMB grades.
• Elasticity and cohesion: The polymer system can improve elastic recovery and binder cohesion, helping suitable thin and open-textured asphalt layers withstand traffic.
• Low-temperature performance: Its softer consistency and elastic properties may help asphalt accommodate thermal movement and reduce cracking when the binder suits the climate and mix design.
• Fatigue and reflective cracking performance: An appropriately designed elastic binder can help a pavement tolerate repeated loading and movement in underlying layers.
• Controlled working temperatures: Mixing and compaction temperatures depend on the formulation. Follow the supplier’s technical data sheet and approved mix design.

Applications

• Thin and very thin asphalt wearing courses
• Porous asphalt and other gap-graded surface mixtures
• Stone mastic asphalt (SMA) wearing courses where the specification permits this grade
• Wearing courses in colder climates or locations with significant temperature variations
• Bridge deck surfacing where the approved design requires high binder elasticity

Selecting the Right Grade

This grade may suit projects where elasticity, cohesion and low-temperature flexibility are important, particularly in thin wearing courses. However, engineers should consider traffic loading, climate, pavement structure and the approved asphalt mix design before making a selection.

Where greater stiffness and rutting resistance are priorities, a harder grade such as PMB 45/80 may be worth evaluating. Conversely, a softer grade such as PMB 75/130 may be considered when the project specification calls for a higher penetration range. Include your project requirements in your enquiry so our team can confirm suitability.

Technical Specifications and EN 14023

EN 14023 provides a framework for specifying polymer-modified bitumen used on roads, airfields and other paved areas. The 65/105 designation identifies the penetration range at 25 °C, measured according to EN 1426.

The complete designation also includes a softening-point class measured using the Ring and Ball method under EN 1427. Examples stated for this grade include PMB 65/105-60 and PMB 65/105-80. The suffix indicates the applicable minimum softening-point class, but it does not define every performance property of the binder.

Other properties, including cohesion, resistance to hardening, Fraass breaking point, elastic recovery and storage stability, depend on the selected specification and declared product properties. Confirm the full designation and test values against the technical data sheet for the actual supply.