What Is SC-800 Cutback Bitumen?
SC-800 Cutback Bitumen is a high-viscosity, slow-curing liquid bitumen produced by blending penetration-grade bitumen with a low-volatility petroleum diluent. The diluent reduces the viscosity of the bitumen, making it easier to mix, spray, penetrate, and apply at lower working temperatures.
After application, the diluent gradually evaporates, leaving a durable bituminous binder that provides strong adhesion, effective aggregate coating, and reliable surface protection.
The letters SC stand for Slow Curing, while the number 800 refers to the lower limit of the product’s kinematic viscosity range at 60°C. SC-800 typically has a kinematic viscosity of 800–1600 mm²/s (cSt) at 60°C.
Alps Asphalt supplies SC-800 Cutback Bitumen for road construction, pavement maintenance, industrial projects, and international export markets.
Main Characteristics of SC-800 Cutback Bitumen
SC-800 is more viscous than lower slow-curing grades such as SC-70 and SC-250. Its extended curing period allows the binder more time to penetrate road-base materials and coat aggregates thoroughly.
The principal characteristics of SC-800 include:
- Slow and controlled curing
- High viscosity compared with lighter cutback grades
- Excellent adhesion to mineral aggregates
- Effective penetration into granular surfaces
- Good aggregate coating and binding performance
- Reduced application temperature compared with conventional paving bitumen
- Suitable workability for selected cold-mix and maintenance applications
- Durable bituminous residue after the diluent evaporates
SC-800 Cutback Bitumen Applications
Prime Coating
SC-800 may be used as a prime coat on prepared granular base courses before the application of an asphalt layer. It penetrates the base, binds loose particles, and helps create a stronger bond between the underlying surface and the subsequent pavement layer.
Cold-Mix Asphalt
The product can be incorporated into selected cold-mix asphalt formulations where extended mixing and curing times are required. Its slow-curing behavior helps provide sufficient time for aggregate coating, transportation, placement, and compaction.
Road Base Stabilization
SC-800 Cutback Bitumen can be used to bind and stabilize suitable granular materials in road-base construction. It helps improve cohesion, reduce dust, and increase resistance to moisture penetration.
Surface Treatment and Maintenance
Depending on the project design and local specifications, SC-800 may be used in certain surface treatments, patching operations, maintenance mixtures, and protective bituminous applications.
Dust Control
The penetrating and binding properties of SC-800 can help control dust on selected unpaved roads, construction routes, and industrial access areas.
Industrial and Waterproofing Applications
SC-800 may also be suitable for certain industrial coating, moisture-protection, and waterproofing applications where a slow-curing bituminous binder is required.
Typical Technical Specifications of SC-800
SC-800 Cutback Bitumen is generally specified according to ASTM standards for slow-curing cutback asphalt.
| Property | Unit | Minimum | Maximum | Test Method |
|---|---|---|---|---|
| Kinematic viscosity at 60°C | mm²/s (cSt) | 800 | 1600 | ASTM D2170 |
| Flash point, Cleveland Open Cup | °C | 93 | — | ASTM D92 |
| Total distillate to 360°C | Volume % | 2 | 12 | ASTM D402 |
| Solubility in trichloroethylene | % | 99.0 | — | ASTM D2042 |
| Kinematic viscosity of distillation residue at 60°C | mm²/s | 2,000 | 16,000 | ASTM D2170 |
| Residue of 100 penetration | % | 70 | — | ASTM D243 |
| Ductility of 100-penetration residue at 25°C | cm | 100 | — | ASTM D113 |
| Water content | % | — | 0.5 | ASTM D95 |
Important: The values shown above are general reference specifications. Final properties may vary according to the applicable standard, buyer requirements, production batch, and agreed contract specifications. A batch-specific Certificate of Analysis can be provided where applicable.
SC-800 Compared with Other Slow-Curing Grades
Slow-curing cutback bitumen is commonly classified according to its viscosity:
- SC-70: Low-viscosity grade offering deeper penetration and easier spraying
- SC-250: Medium-viscosity grade used for various road-treatment applications
- SC-800: High-viscosity grade providing stronger aggregate coating and a heavier residual binder
- SC-3000: Very high-viscosity grade intended for specialized heavy applications
The appropriate grade should be selected according to the aggregate type, surface condition, climate, application method, curing requirements, and project specifications.
Advantages of SC-800 Cutback Bitumen
Extended Working Time
The slow evaporation rate provides more time for mixing, spreading, placement, and compaction.
Strong Aggregate Adhesion
SC-800 forms a consistent bituminous film around suitable aggregates, supporting cohesion and long-term performance.
Effective Surface Penetration
When properly applied, the product can penetrate granular surfaces and bind loose particles.
Lower Application Temperature
The addition of a diluent improves workability and can reduce the heating required compared with conventional paving-grade bitumen.
Durable Residual Binder
Following the curing process, the remaining bitumen provides binding, waterproofing, and protective properties.
Packaging and Supply Options
Alps Asphalt can supply SC-800 Cutback Bitumen in packaging selected according to the order volume, destination, transportation conditions, and customer requirements.
Available supply options may include:
- New steel drums
- Bulk road tankers
- Bitutainers
- ISO tanks
- Other customized export arrangements upon request
Packaging availability and filling weight should be confirmed when placing an order.
Storage and Handling
SC-800 contains petroleum-based diluents and must be stored and handled according to the applicable safety regulations.
Recommended precautions include:
- Store in properly sealed and approved containers or tanks.
- Keep away from flames, sparks, heat, and ignition sources.
- Provide adequate ventilation in storage and application areas.
- Avoid inhalation of vapours and prolonged skin contact.
- Use suitable protective clothing, gloves, and eye protection.
- Review the current Safety Data Sheet before handling or application.
- Observe all applicable transportation, environmental, and occupational-safety regulations.
Because cutback bitumen releases volatile compounds during curing, its use may be restricted in certain countries or projects. Buyers should confirm local environmental regulations and project requirements before ordering.
Why Choose Alps Asphalt for SC-800?
Alps Asphalt is a producer, supplier, and international trader of bitumen, serving road contractors, distributors, industrial users, and infrastructure projects across global markets.
Our supply services include:
- Product conformity based on agreed specifications
- Quality-control documentation
- Flexible export packaging
- Competitive commercial terms
- International shipping coordination
- Technical and commercial support
- Customized supply solutions for different destinations
Order SC-800 Cutback Bitumen
For current SC-800 Cutback Bitumen prices, technical documents, packaging options, minimum order quantities, and shipping terms, Contact the Alps Asphalt sales team.
When requesting a quotation, please specify:
- Required quantity
- Destination country and port
- Preferred packaging
- Required technical standard
- Delivery term or Incoterm
- Intended application
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