Bitumen 50/70 – Premium Penetration Grade Paving Binder

Our Bitumen 50/70 is a high-performance penetration grade binder engineered for durability, flexibility, and resistance to deformation under heavy traffic loads. Ideal for highway construction, urban road paving, and asphalt concrete applications, Bitumen 50/70 delivers consistent quality that meets international paving standards.

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What Is Bitumen 50/70?

 Bitumen 50/70 is a penetration grade paving binder with a penetration value of 50–70 (0.1mm at 25°C), tested per EN 1426. This medium-hardness grade balances stiffness and flexibility, making Bitumen 50/70 one of the most widely specified binders for asphalt concrete production across global road construction projects today.

Manufactured to EN standards, Bitumen 50/70 offers a softening point of 46–54°C and kinematic viscosity above 295 CST at 135°C. These properties give Bitumen 50/70 strong resistance to deformation under heavy traffic loads, ensuring pavements retain structural integrity through temperature fluctuations, seasonal stress, and sustained vehicular pressure over time.

Contractors choose Bitumen 50/70 for highways, expressways, urban roads, and rural pavements requiring dependable, medium-to-heavy traffic performance. Compared to softer grades like 60/70, Bitumen 50/70 provides slightly better rutting resistance while retaining workability, making it a proven, cost-effective choice for durable, long-lasting asphalt infrastructure worldwide.

Bitumen 50/70 Specification

Bitumen Penetration Grade 50/70 Specifications

Essential Details

Test Method

Unit

Min.

Max.

  • Penetration at 25 °C, 100g, 5s
  • EN 1426
  • 0.1mm
  • 50
  • 70
  • Softening Point
  • EN 1427
  • °C
  • 46
  • 54
  • Kinematic Viscosity @ 135°C
  • EN 12595
  • CST
  • 295
  • –
  • Penetration Index
  • EN 12591
  • mm
  • –
  • 0.2
  • Flash Point
  • EN 2592
  • °C
  • –
  • 20
  • Solubility in Trichloroethylene
  • EN 12592
  • wt.%
  • 99
  • –
  • Spot Test
  • ASHTO T102
  • Negative

Bitumen 50/70 MSDS

pdf

Bitumen 50/70 Safety Data Sheet

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Our Packaging

We deliver bitumen in versatile, secure options: economical Jumbo Bags, robust steel Drums, or high-volume Bulk Containers (Bitutainers/Bituboxes).

Terms of Payment

Payment Terms for Smooth Transactions

TT Method

The buyer pays 30% advance, with the balance against B/L draft (CFR) or customs docs (FOB).

LC at Sight

100% irrevocable, non-transferable, confirmed LC at sight, subject to bank approval by Black Rock Bitumen.

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    Our faqs

    Frequently Asked Questions.

    Our 50/70 penetration grade bitumen is a versatile paving binder offering balanced hardness, durability, and workability for standard road construction.

    Bitumen 50/70 is a penetration grade paving bitumen with a penetration value of 50–70 (0.1mm at 25°C) as per EN 1426, indicating medium hardness suitable for standard road construction.

    Bitumen 50/70 is slightly harder than 60/70, with a tighter penetration range (50–70 vs 60–70) and marginally higher softening point (46–54°C), giving it better rutting resistance for heavier traffic loads while retaining good flexibility.

    Bitumen 50/70 is a harder, more temperature-stable grade than 80/100, making it better suited to hot climates and high-traffic roads, while 80/100 suits cooler regions requiring greater flexibility.

    Bitumen 50/70 offers a balanced mix of hardness and flexibility, strong rutting resistance under heavy loads, and a softening point of 46–54°C for thermal stability. Its performance is EN 1426/EN 1427 certified, with a proven track record in highway and expressway paving.

     Bitumen 50/70 should be stored in heated tanks between 140–160°C, kept free from moisture contamination, and handled using insulated tankers to maintain viscosity during transport and application.

    Bitumen 50/70 is supplied in jumbo bags, steel drums, and bulk containers (bitutainers/bituboxes), allowing flexible shipment sizes for contractors and EPC companies worldwide.

    Bitumen 50/70 typically has a shelf life of 12–24 months when stored correctly; MOQ varies by packaging type, with bulk container orders offering the most cost-efficient pricing per ton.

     Yes, Bitumen 50/70 from Black Rock Bitumen is tested and certified under EN 1426, EN 1427, EN 12591, and EN 12595 standards, ensuring consistent quality for global infrastructure projects.