MEDIUM CURING CUTBACK BITUMEN (MC-250)
General information:
- Priming and Tack Coating – Cutback bitumen’s suitable for priming are also used for tack coats, which are applied to an underlying surface to help with the adhesion of subsequent asphalt layer.
- Primer Sealing – Where temperatures are too cool for an effective priming operation, or where traffic is likely to upset a primed surface before the final seal can be sprayed, a primer seal can be used to give adequate protection of the pavement for periods of up to 6 to 12 months. Cutback bitumen’s suitable for primer sealing can also be used in the manufacture of pre-mix asphalt, which is used in repairs.
- Sprayed Sealing – Cutback bitumen’s are used extensively in sprayed sealing applications, particularly in cooler weather where they provide improved initial stone retention due to their lower viscosity.
- Packing : 220, 230 , 240(Liter) new steel drum
Technical Specifications:
| Property | Min | Max | Test Method |
| kinematic viscosity at 60°C mm^2/s | 250 | 500 | ASTM D2170 |
| Flash point (tag open-cup), °C | 66 | - | ASTM D3143 |
| distillate test: distillate,volume percent of total distillate at 360°C: | |||
| To : 225°C | - | 10 | ASTM D402 |
| To : 260°C | 15 | 55 | ASTM D402 |
| To : 316°C | 60 | 87 | ASTM D402 |
| residue from distillation to 360°C,percent volume by difference | 67 | - | ASTM D402 |
| test on residue from distillation: | |||
| viscosity at 60°C | 30 | 120 | ASTM D2170 |
| Penetration, 25°C | 120 | 250 | ASTM D5 |
| Ductility, 25°C | 100 | - | ASTM D113 |
| Solubility in trichloroethylene, % | 99 | - | ASTM D2024 |
| water , % | - | 0.2 | ASTM D95 |