Viscous petroleum road bitumen grade BND 60/90
Quality:
Needle penetration depth at 25℃, 0.1 mm – 61
Softening temperature along the ring and ball, ℃ - 49.0
Extensibility at 0℃, cm - 3,5
Brittleness temperature, ℃ - 15
Flash point, ℃ - 298
Change in softening temperature after heating, ℃ - 5