Bitumen SC70 – Premium Cutback Bitumen from Basekim
Bitumen SC70 is a slow-curing cutback bitumen made by mixing penetration-grade bitumen with a slow-evaporating solvent. Because of this formula, it becomes more fluid and penetrates deeper into the road base. Therefore, it is one of the best materials for prime coats and patching jobs. At Basekim, we produce SC70 that meets international standards and delivers steady, reliable performance for all types of road projects.
Why Bitumen SC70 Works So Well
Bitumen SC70 is designed for road bases that need extra absorption time. Since it evaporates slowly, the binder can soak deeply into gravel and unbound layers before it becomes solid. As a result, the base becomes stronger and holds the final asphalt layer more effectively.
Better absorption
SC70 enters the base slowly, and because of that, it creates a stronger bond between particles. This bond improves durability and reduces early road damage.
Longer working time
The slow curing gives workers more time to apply the product. Therefore, the coating becomes smoother and more even, even in hot climates.
Improved protection
After curing, SC70 forms a tight seal. Consequently, the road becomes more resistant to moisture, cracks, and erosion. This makes SC70 suitable for moderate-traffic roads and challenging weather conditions.
Technical Specifications of Bitumen SC70
Every batch from Basekim goes through strict quality checks. Moreover, the values below follow international ASTM standards.
| Property | Test Method | Specification |
|---|---|---|
| Kinematic Viscosity @ 60°C | ASTM D2170 | 70–140 cSt |
| Flash Point | ASTM D3143 | Min 38°C |
| Distillation Residue | ASTM D402 | Min 55% |
| Penetration of Residue | ASTM D5 | 100–250 dmm |
| Ductility of Residue | ASTM D113 | Min 100 cm |
| Solubility in TCE | ASTM D2042 | Min 99% |
We also provide SDS and COA documents so contractors can verify safety and product quality immediately.
Where SC70 Is Used in Road Construction
Bitumen SC70 is used in several important applications. Because it penetrates deeply, it creates a strong and stable base for asphalt.
1. Prime Coating
SC70 bonds loose particles together. Therefore, it prepares the base for the asphalt layer and improves long-term performance.
2. Patching and Repairs
SC70 stays workable longer. As a result, contractors can repair potholes and damaged areas more easily and with fewer mistakes.
3. Light Surface Treatments
When the road needs extra bonding or mild waterproofing, SC70 provides a balanced and effective solution.
4. Tack Coats (selective use)
SC70 can also serve as a tack coat when deeper bonding is required and longer curing is acceptable.
Because SC70 flows smoothly, workers find it easy to spray, spread, and control. Moreover, after full curing, the treated area becomes more durable and resistant to moisture.
Why Choose Basekim for SC70?
Basekim is a trusted global supplier of SC70 cutback bitumen. We control every step, from production to export. Therefore, customers receive consistent quality, proper packaging, and reliable delivery. We offer steel drums, IBC tanks, and ISO tanks to fit different project needs.
Since we export to over 40 countries, our clients benefit from fast service, complete documentation, and competitive pricing. Moreover, our technical team supports every order to ensure the best performance in the field.
Get a Fast Quote for Bitumen SC70
If you are building new roads or repairing existing ones, Bitumen SC70 is a strong and flexible choice. In addition, our team can help you select the right quantity and packaging.
Contact Basekim today for a quick quote and full technical support. We are ready to assist your next project with reliable, high-quality materials.
Q1: What is bitumen SC70 used for?
A: Bitumen SC70 is a slow-curing cutback bitumen used primarily for road priming and patching tasks. Its high-boiling solvent provides excellent fluidity and deep penetration, enhancing bonding and durability in base layers.
Q2: How does bitumen SC70 compare to faster curing grades?
A: Bitumen SC70 evades premature hardening thanks to its slow solvent evaporation, offering extended working time during application. This results in better surface absorption and adhesion compared to rapid curing alternatives.
Q3: What are the key technical properties of bitumen SC70?
A: Bitumen SC70 features kinematic viscosity at 60 °C of 70–140 cSt, a minimum flash point of 38 °C, at least 55 % distillation residue by volume, penetration of 100–250 dmm, ductility over 100 cm, and solubility above 99 % in TCE.