PMB 25/55 Supplier and Exporter

PMB 25/55 is a polymer modified bitumen in one of the harder penetration ranges, used in asphalt where a project needs a stiff modified binder but has not called for the hardest range. We are a PMB 25/55 supplier for contractors, traders and project buyers in Dubai, the wider UAE and export markets, quoting each order against the specification you provide. Actual availability is confirmed at the quotation stage.

Below, you will find how to read the 25/55 range, the pavement conditions where it is commonly considered, and what to include in an enquiry. Background on PMB in general, and the full set of nine ranges, is on our Polymer Modified Bitumen category page.

What Does PMB 25/55 Mean?

The letters identify the product type: Polymer Modified Bitumen, a paving binder in which a polymer has been incorporated to alter its response to traffic and temperature. The numbers identify the consistency band. 25/55 is a nominal penetration range, so a standard needle penetrating the binder at 25 °C is expected to sink between 25 and 55 tenths of a millimeter.

25/55 Compared with 10/40

Read purely as penetration figures, 25/55 is less hard than 10/40 and harder than mid-range grades such as 45/80. That places the binder on the consistency scale, and nothing more. Two binders in the same penetration range can differ substantially in softening point, elastic recovery, and cohesion, because these depend on the base bitumen, the polymer, and the formulation. Those properties are fixed by the governing specification and confirmed in the product documentation, not inferred from the 25/55 label.

PMB 25/55 Characteristics

Without a confirmed product specification, PMB 25/55 can only be described qualitatively. Figures for a specific offer appear in its Technical Data Sheet.

Position in the PMB Range

With the second-lowest penetration range of the nine we offer, 25/55 sits towards the stiff end of PMB. Specifiers often look at this part of the scale when stiffness and deformation resistance are priorities.

Stiffness and Rutting Resistance

In a well-designed mix, a stiffer polymer-modified binder may help limit rutting and shoving where pavements carry heavy loads at elevated temperatures, a recurring concern on roads in the UAE and the wider Gulf. The benefit achieved depends on the formulation and the mix, not on the penetration range alone.

Effect of Polymer Modification

Compared with an unmodified binder of similar consistency, polymer modification can strengthen cohesion and reduce the binder’s sensitivity to temperature change, typically improving its ability to recover after loading. These effects vary with the polymer system and are verified through the applicable specification tests.

Practical Considerations

As with any harder binder, workability during mixing and compaction, and behavior at low temperatures, should be reviewed against the project’s climate and layer design. These are matters for the mix designer and the specification, and the TDS for the offered product should be checked before ordering.

PMB 25/55 Applications

PMB 25/55 may be specified in road-paving work where loading and temperature demands call for a harder modified binder. Typical contexts, always subject to specification, climate, traffic and mix design, include:

• asphalt binder and surface courses on motorways and arterial roads with sustained heavy-vehicle traffic
• urban corridors, intersections and their approaches, where braking, turning and queuing traffic stress the surface
• road surfacing in hot climates, where high summer pavement temperatures increase the risk of rutting
• industrial, logistics and port-access roads carrying slow, heavy loads
• infrastructure projects whose specifications set performance requirements an unmodified binder may not meet

Whether 25/55 is right for a particular layer is a design decision. Some projects will specify a harder or softer PMB, and others will be well served by an unmodified grade.

PMB 25/55 and EN 14023

EN 14023 sets out how polymer modified bitumen’s are specified. Rather than prescribing a composition, it lists the properties to be tested, such as consistency, cohesion and elastic behavior, and arranges the permitted results into classes. Each specification then selects the classes it requires for its climate and traffic.

Within that system, 25/55 identifies the penetration range only. The full designation also states the applicable minimum softening-point class, and the specification can impose further requirements on other properties. PMB 25/55 should therefore be read as a range description, not as a complete EN 14023 designation. For any order, the complete designation and the PMB 25/55 specifications that apply are confirmed against your project documents in our quotation and the accompanying TDS.

EN 14023 has been adopted as a Gulf standard by the GCC Standardization Organization, yet designation practice still varies between markets and projects. Some tenders specify Performance Grade (PG) binders or national standards instead. In that case, see our Performance Grade (PG) bitumen range and include the PG requirement in your enquiry.

PMB 25/55 vs Conventional Penetration Bitumen

An unmodified paving grade is classified mainly by its penetration range; these grades are listed on our Penetration Bitumen page. PMB 25/55 also states a penetration range, but it is a different product. The polymer is added to target properties that penetration alone does not capture, and the binder is specified under a PMB framework.

Two practical points follow. First, PMB 25/55 should not be swapped for an unmodified binder of similar hardness, or the reverse, without the specifier’s approval, since the two can perform differently in service. Second, choosing PMB is a project decision, not an automatic upgrade. On many roads, conventional bitumen remains technically suitable and more economical.

Choosing PMB 25/55 for a Project

In most cases, the range is fixed by the tender. Where a specification is still being developed, or alternatives are permitted, these questions help decide whether 25/55 is appropriate:

• Climate: how high do pavement temperatures run in service, and how cold does it get?
• Traffic: what volume of heavy vehicles is expected, and does traffic slow, stop, or run in channels?
• Pavement layer: is the binder for a wearing, binder, or base course?
• Asphalt mix: which mix type and design will the binder be used in?
• Required performance: are there stated criteria for rutting, fatigue, or durability?
• Applicable standard: is the project written to EN 14023, PG, or a national or authority specification?
• Project specification: does it name 25/55 directly, or allow equivalent binders?

The final grade and complete classification should always follow the project specification. If a harder or softer range might suit the project better, our PMB category page lists all nine ranges for comparison.

PMB 25/55 Supply from Dubai

Buyers in Dubai, elsewhere in the UAE, and overseas can request PMB 25/55 through us. As a PMB 25/55 supplier and exporter connected to the Dubai bitumen market, we review your specification, quantity and destination, then confirm what can be offered.

For UAE projects, the quotation is matched to the binder requirement in your tender or consultant documents. For export enquiries, it also sets out delivery terms, routing and the shipping documentation required, agreed case by case. Availability, origin and loading port are confirmed in writing for each PMB 25/55 order at quotation stage; nothing is assumed from a standard listing.

PMB 25/55 Documentation

Documentation can be provided and confirmed according to the product and order requirements. For PMB 25/55, buyers usually ask for:

• a Technical Data Sheet (TDS) confirming the offered product, its complete designation and specification basis
• a Certificate of Analysis (COA) with test results for the supplied batch
• a Safety Data Sheet (SDS/MSDS) covering handling, storage and transport
• inspection documentation from an agreed third party, where the project or buyer requires it

Send any project document checklist with your enquiry, and each item will be confirmed in our offer.

Frequently Asked Questions

Request a PMB 25/55 Quotation

PMB 25/55 is priced per enquiry rather than from a list. Send us the details below and we will prepare a quotation for delivery to Dubai, elsewhere in the UAE or your export destination:

• required specification and complete designation
• destination port and country
• quantity
• packaging requirement
• documentation and inspection requirements

Request a PMB 25/55 Quotation

Published Dubai Bitumen Prices cover conventional grades only; PMB 25/55 pricing is provided by quotation.