PG 70-40 Performance Grade Bitumen — Polymer-Modified Binder for Cold-Climate Roads

PG 70-40 is engineered for pavement temperatures up to 70°C and as low as −40°C, offering superior flexibility, rutting resistance, and thermal-crack protection for highways and bridges in the harshest cold-climate conditions.

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What Is PG 70-40 Bitumen?

PG 70-40 is a performance-graded asphalt binder engineered to perform at high pavement temperatures up to 70°C and extremely low temperatures down to −40°C. It’s the most cold-resistant grade in the PG70 family, often achieved through advanced polymer modification.

This grade offers outstanding resistance to rutting under heavy traffic and heat, paired with exceptional flexibility that prevents cracking in extreme cold. It’s built for pavements and bridges exposed to the widest possible temperature swings.

Classified under the AASHTO/ASTM Superpave PG system, PG 70-40 is specified for highways, expressways, and bridges in extreme-climate regions where lower cold-grade binders would fail prematurely.

PG 70-40 Specification

PG 70-40 Specifications

Essential Details

Test Method

Unit

Min.

Max.

  • Specific Gravity at 25 °C
  • ASTM D70
  • –
  • 1.01
  • 1.05
  • Penetration at 25 °C, 100g, 5s
  • ASTM D5
  • 0.1mm
  • 70
  • 40
  • Softening Point
  • ASTM D36
  • °C
  • 58
  • 78
  • Ductility at 25 °C
  • ASTM D113
  • cm
  • 100
  • –
  • Loss on Heating
  • ASTM D6
  • wt.%
  • –
  • 1.0
  • Drop in Penetration after Heating
  • ASTM D5
  • %
  • –
  • 20
  • Flash Point
  • ASTM D92
  • °C
  • 230
  • –
  • Solubility in Trichloroethylene
  • ASTM D2042
  • wt.%
  • 99
  • –
  • Spot Test
  • ASHTO T102
  • Negative

PG 70-40 MSDS

pdf

PG 70-40 Safety Data Sheet

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    Our faqs

    Frequently Asked Questions.

    Our PG 70-40 bitumen is a high-performance asphalt binder designed for high-temperature stability and exceptional low-temperature crack resistance in extreme climates.

    PG 70-40 is a Performance Grade (PG) asphalt binder designed to perform at high pavement temperatures up to 70°C and low temperatures down to −40°C.

    2. Where is PG 70-40 commonly used?

    It is commonly used in:

    • Cold and extreme climate regions
    • Highways and expressways
    • Bridges and pavements prone to thermal cracking
    • Heavy-traffic roads exposed to wide temperature variations

    It offers excellent resistance to rutting at high temperatures and exceptional flexibility at very low temperatures, often achieved through advanced polymer modification.

    • Outstanding low-temperature crack resistance
    • Strong high-temperature stability
    • Long pavement service life
    • Reliable performance in extreme climates

    PG 70-40 should be stored in temperature-controlled heated tanks, avoiding prolonged overheating, and handled with clean equipment to maintain binder properties.