PMB 65/105 Polymer Modified Bitumen Manufacturers

PMB 65/105 is a medium-soft polymer modified bitumen grade with a penetration range of 65 to 105 (0.1 mm) at 25 °C. It is considered for pavement projects where flexibility and resistance to cracking are important design priorities. The required EN 14023 property classes must be confirmed against the complete product designation and project specification.

The softer consistency can be useful in applications where low-temperature flexibility matters, while polymer modification helps improve performance compared with an unmodified binder of similar penetration. The final suitability of PMB 65/105 depends on the pavement design, expected climate, traffic conditions, and specified binder properties. It follows PMB 40/100 and precedes PMB 75/130 in the Tiger Bitumen Polymer Modified Bitumen range.

Tiger Bitumen is the product brand of HY International Group. PMB 65/105 export enquiries are assessed against the complete EN 14023 designation and the property classes specified for the buyer’s project.

Tiger Brand PMB 65/105 Specifications (EN 14023)

Only the penetration range is indicated by the PMB 65/105 grade name. The softening point and other performance properties depend on the complete designation and the applicable classes in the product specification. These details should be confirmed before an order is accepted. If a project specification requires cohesion testing by tensile test (EN 13587) or the Vialit pendulum method (EN 13588), the specified test method should be followed.

Balancing Cold-Weather Cracking and Summer Rutting

A medium-soft modified binder may be considered when a pavement needs a balance between flexibility and resistance to deformation. Two properties that deserve particular attention are the Fraass breaking point and softening point. A designation such as PMB 65/105-60 should only be used when it matches the applicable product specification, including the relevant penetration and softening-point requirements.

Using PMB 65/105 Against Reflective Cracking

When a new asphalt overlay is placed over a cracked pavement, movement in the existing cracks can gradually cause cracks to appear in the new surface. A stress-absorbing membrane interlayer (SAMI) is a binder-rich layer installed between the existing pavement and the overlay to help manage this movement.

For these applications, the selected binder must meet the project’s requirements for flexibility, cohesion, and elastic recovery. PMB 65/105 may be considered for a SAMI or overlay project when its declared properties meet the specification. Select the grade based on pavement condition, climate, traffic, and the engineer’s design requirements.

Applications of PMB 65/105

• Asphalt surface courses in temperate and cooler climates, where the specified properties are suitable.
• Porous asphalt and thin surfacings where flexibility and the required performance characteristics are priorities.
• Stress-absorbing membrane interlayers (SAMI) over cracked pavements before an overlay, where approved by the project specification.
• Maintenance overlays on flexible or ageing pavements where reflective-cracking control is a design consideration.

Selecting PMB 65/105

PMB 65/105 may suit projects where flexibility is an important performance requirement. The grade named in the project specification always takes priority. As a general guide, the following alternatives can be considered according to their designated properties and intended applications:

Supplying PMB 65/105 for Export Projects

PMB 65/105 selection depends on the project’s climate, pavement design and specified binder properties. The same penetration grade may be supplied with different softening-point and Fraass requirements, depending on the complete designation and the relevant market specification. Consistent production also depends on suitable base bitumen, effective polymer dispersion and appropriate storage and handling controls.

For an export enquiry, provide the complete designation, required property classes, order quantity and destination port. If the specification is based on climatic conditions, include the design temperature range as well. HY International Group’s export team can review these requirements against the relevant product specification before preparing a quotation.

Handling PMB 65/105

PMB 65/105 may be easier to pump and mix than some harder PMB grades, but its viscosity and handling requirements depend on the formulation and temperature. Keep mixing, spraying, and storage temperatures within the limits specified for the particular product. Minimise unnecessary hot-storage time and avoid overheating, as excessive heat can degrade the polymer and affect binder performance.

PMB 65/105 FAQs