Bitumen SC70 – Slow Curing Grade for Superior Road Performance

Bitumen SC70 is a premium slow-curing cutback bitumen designed for road construction, prime coating, and maintenance projects that require deeper penetration into dense bases. With a slower curing profile than SC30, Bitumen SC70 provides engineers with extended working time and ensures stronger bonding between layers. This makes SC70 the preferred choice for large-scale infrastructure projects worldwide.

What Is Bitumen SC70?

Bitumen SC70 is a slow-curing binder produced by blending penetration grade bitumen with petroleum distillates that evaporate gradually. This controlled curing allows the binder to penetrate fully into compacted foundations before setting. The result is a durable and flexible base for asphalt layers, ensuring that SC70 delivers long-term road performance even under heavy traffic and harsh conditions.

Key Properties of Bitumen SC70

• Extended Curing Time – SC70 penetrates deeper into dense layers, preventing premature hardening.

• Consistent Viscosity – Guarantees uniform aggregate coating and reduces the risk of weak bonding.

• Superior Adhesion – Maintains strong bonds even in wet or high-traffic environments.

• Climate Adaptability – Effective in moderate and cooler climates where hot bitumen use is limited.

• Durable Residual Binder – After solvent evaporation, the remaining binder performs like high-grade paving bitumen.

Applications of Bitumen SC70

1. Prime Coating of Dense Bases –  SC70 creates a dust-free, stable surface for asphalt surfacing.

2. Surface Dressing of Highways – Improves skid resistance and seals roads against water penetration.

3. Road Rehabilitation – Used for patching, sealing, and preventive treatments to extend pavement life.

4. Dust Control – SC70 stabilizes unpaved surfaces in industrial areas and ports.

5. Cold Weather Paving – Reduces heating requirements, saving cost and energy in cooler regions.

Manufacturing Process of Bitumen SC70

The production of Bitumen SC70 follows strict industrial standards:

• Selection of premium penetration grade bitumen

• Blending with slow-evaporating petroleum distillates

• Continuous mixing to achieve consistent viscosity

• ASTM/AASHTO quality testing for penetration, flash point, viscosity, and residue

• Safe storage in sealed tanks or drums to prevent solvent loss

Packaging and Delivery

At Basekim, Bitumen SC70 is supplied in packaging formats suitable for every project:

• New steel drums (185–200 kg net weight)

• Bulk tanker shipments for large-scale road construction

• IBC containers for controlled application

• Custom packaging available upon request

All deliveries of SC70  include FOB or CIF terms, MSDS, and quality certificates to ensure safety and compliance with global standards.

Safety and Handling

• Store Bitumen SC70 in a cool, dry, and ventilated area

• Avoid exposure to heat or open flames due to flammable solvents

• Use protective gloves and eyewear during handling

• Keep containers sealed to maintain product quality

Frequently Asked Questions (FAQ)

Q1: How is SC70 different from SC30?
SC70 cures slower, offering deeper penetration and extended working time, while SC30 is designed for faster priming.

Q2: Can Bitumen replace oxidized bitumen?
No. Oxidized bitumen is used mainly for waterproofing, while SC70 is engineered for road construction and surface dressing.

Q3: Does Bitumen SC70 require heating?
Minimal heating may be required, but much less compared to hot-applied bitumen, making it more cost-effective.

Q4: How long can  SC70 be stored?
Properly sealed,SC70 maintains its quality. However, due to its solvent content, it has a shorter shelf life than hard binders.

Conclusion

SC70 is a high-performance slow-curing binder that ensures deep penetration, superior adhesion, and long-term durability. Its flexibility, curing profile, and adaptability make SC70 the ideal solution for prime coating, surface dressing, and road rehabilitation projects.

By choosing  SC70, contractors and infrastructure developers secure stronger, more sustainable, and longer-lasting roads.