Bitumen 120/150 – Penetration Grade Bitumen for Durable Road Construction

Bitumen 120/150 is a penetration-grade bitumen with a penetration value of 120–150 dmm, delivering consistent performance with excellent flexibility and adhesion. This penetration grade bitumen is ideal for durable road construction, paving, and heavy-duty infrastructure applications, making Bitumen 120/150 a trusted choice for projects worldwide.

What Is Bitumen 120/150?

 Bitumen 120/150 is a penetration grade bitumen with a penetration value ranging from 120 to 150 at 25°C. Softer than mid-range grades, Bitumen 120/150 offers superior flexibility and elasticity, making it well-suited for colder climate road construction and applications requiring enhanced low-temperature performance.

Bitumen 120/150 is commonly used in road paving across cooler regions, where softer binders resist cracking under low-temperature stress. This grade also suits surface dressing, priming coats, and modified bitumen production. Bitumen 120/150 performs reliably in applications demanding higher ductility and workability at reduced temperatures.

Blackrock Bitumen supplies high-quality Bitumen 120/150 manufactured to meet international penetration, softening point, and ductility standards. Our Bitumen 120/150 undergoes strict quality testing to ensure consistent performance for contractors and infrastructure projects worldwide. Choose Blackrock Bitumen for reliable Bitumen 120/150 supply.

Black Rock Bitumen 120/150

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Bitumen 120/150 Specification

Bitumen Penetration Grade 120/150 Specifications

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Bitumen 120/150 MSDS

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Bitumen 120/150 Safety Data Sheet

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    Our faqs

    Frequently Asked Questions.

    Penetration Grade Bitumen 120/150 offers reliable flexibility and adhesion, ideal for road surfacing and general paving applications.

    Penetration Grade Bitumen 120/150 is a softer grade of bitumen with a penetration value between 120–150, ideal for moderate traffic roads and flexible pavements.

    Store in a dry, covered area away from direct sunlight. Maintain a temperature above its pour point to prevent hardening and ensure easy handling.

    This bitumen grade offers good adhesion, adequate flexibility, and resistance to moderate temperature variations, making it suitable for varied climates.

    Always source from trusted suppliers like Black Rock Bitumen, and check compliance with ASTM, IS, or EN standards to guarantee consistent performance.

    Bitumen 120/150 has a softening point of 38–44°C per ASTM D36, one of the lowest ranges among Black Rock Bitumen's penetration grades, reflecting its soft, highly flexible consistency.

    The two grades sit close together — 120/150 has a slightly wider and softer penetration range (120–150 vs 100–120) with a marginally higher softening point ceiling (38–44°C vs 38–43°C). In practice, the choice usually comes down to the exact grade named in a project's technical specification rather than a major performance difference; buyers should confirm which grade their contract calls for.

    Bitumen 120/150 is tested to ASTM standards, including ASTM D5 (penetration), ASTM D36 (softening point), ASTM D113 (ductility), ASTM D92 (flash point), and ASTM D2042 (solubility in trichloroethylene), with a minimum flash point of 250°C.

    Under ASTM D113, Bitumen 120/150 must achieve a minimum ductility of 100 cm at 25°C, confirming its high elasticity for cold-climate and low-temperature applications.