SPA140 is a highly effective stiffness modifier for asphalt binder modification.

SPA140 provides the benefit of stiffness modification without increasing viscosity or drastically impacting low temperature flexibility. Minimal dosages of SPA140 are required to provide significant grade bumping impact in both non-polymer and polymer asphalt modification.

SPA140 Benefit Highlights:

  • Compatible with Polymer Modifiers
  • Increase in Binder Stiffness Modulus
  • Minimal Impact on Low-Temperature Flexibility
  • High-temperature binder grade bumping:
    • PG 52-28 → PG 58-28
    • PG 58-34 → PG 64-34
    • PG 64-22 → PG 70-22
    • PG 76-22 → PG 82-22

Binder ID

Continuous Performance Grade, °C

Performance Grade, °C

BBR Delta Tc, °C

PG52-34 Control

55.0 – 35.3

52 – 34

-0.5

PG52-34 + 1.5% SPA140

66.2 – 35.9

64 – 34

-0.2

PG52-34 + 2.0% SPA140

73.7 – 35.2

70 - 34

0.0

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Safety Data Sheet

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