Cutback SC-70
Cutback Bitumen SC-70 | Slow Curing Bitumen by Pars Bitumen
Cutback Bitumen SC-70
Introduction
Cutback Bitumen SC-70 is a slow-curing bitumen formulated to deliver strong and durable adhesion in road construction, soil stabilization, and surface dressing applications. Manufactured and supplied by Pars Bitumen, this product combines penetration-grade bitumen with a heavy petroleum solvent to achieve longer curing times and deeper penetration — ideal for use in warm climates and granular surfaces requiring gradual setting.
What Is Cutback Bitumen SC-70?
Cutback Bitumen SC-70 (Slow Curing 70) is produced by dissolving penetration-grade bitumen in low-volatility solvents such as diesel or heavy kerosene.
This slower rate of solvent evaporation allows the bitumen to remain workable for an extended period, ensuring complete surface penetration and a long-lasting bond after curing.
SC-70 is best suited for applications where slow drying and deep sealing are desired — making it perfect for prime coats, dust control, and road base treatments.
Applications of SC-70
Pars Bitumen SC-70 is recommended for:
Prime coat on granular and stabilized bases before asphalt application
Surface dressing on unpaved or gravel roads
Dust suppression and soil stabilization
Cold-mix asphalt production in rural or low-traffic areas
Waterproofing and protective coating applications
The product’s controlled curing ensures uniform coating and superior bonding, even in hot climates.
Technical Specifications
Property Specification
Kinematic Viscosity @ 60°C 70 ± 10 cSt
Flash Point (COC) Minimum 40°C
Distillation to 225°C Maximum 20%
Residue from Distillation Minimum 55%
Penetration of Residue @ 25°C 120–250 dmm
Pars Bitumen SC-70 meets international standards such as ASTM D2027 / D2026, guaranteeing consistent quality and reliability.
|
Properties |
Min | Max | Test Method |
| Kinematic viscosity at 60°C [140°F], mm2/s | 70 | 140 | ASTM D2170 |
| Flash Point (Cleveland open cup), °C [°F] | 66[150] | – | ASTM D92 |
| Distillation test: | |||
| Total distillate to 360°C [680°F], volume % | 10 | 30 | ASTM D402 |
| Solubility in trichloroethylene, %, | 99.0 | – | ASTM D2042 |
| Kinematic viscosity on distillation residue at 60°C [140°F], mm2/s | 400 | 7000 | ASTM D2170 |
| Asphalt residue: | |||
| Residue of 100 penetration, % | 50 | – | ASTM D243 |
| Ductility of 100 penetration residue at 25°C [77°F], cm | 100 | – | ASTM D113 |
| Water, % | – | 0.5 | ASTM D95 |
Packaging and Supply
At Pars Bitumen, we provide SC-70 Cutback Bitumen in a variety of safe, export-ready packaging options:
200-liter steel drums (net weight ~200 kg)
Bulk tankers for large projects
IBC containers for efficient transport
Customized palletized drums for export markets
Each drum bears the Pars Bitumen logo and full labeling for easy identification and traceability.
Storage and Handling
Store SC-70 in a cool, dry, and shaded area away from heat and open flames. Use personal protective equipment (PPE) when handling and avoid prolonged inhalation of vapors. Properly sealed containers ensure a storage life of up to 12 months.
Why Choose Pars Bitumen?
Pars Bitumen is one of the region’s leading cutback bitumen manufacturers and exporters, offering all grades of slow-curing (SC), medium-curing (MC), and rapid-curing (RC) products.
We guarantee:
Consistent product quality and performance
Compliance with ASTM and international specifications
Reliable global logistics and export documentation
Customer-focused service and custom packaging solutions
With years of experience, Pars Bitumen remains a trusted partner in road construction and industrial bitumen supply worldwide.
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Conclusion
Cutback Bitumen SC-70 from Pars Bitumen is the ideal solution for contractors and engineers seeking a reliable, medium-curing binder for high-quality road construction and maintenance. Our commitment to excellence and innovation ensures every project achieves superior performance and durability.
Contact Pars Bitumen
🌐 Website: www.parsbitumen.com
📧 Email: sales@parsbitumen.com
📞 WhatsApp: +98 912 387 9127