In the global tire manufacturing industry, natural rubber remains a vital raw material. Among the many natural rubber grades, SVR CV60 has gained a prominent reputation—especially in the production of truck and bus tires. In this article, we’ll explore why tire manufacturers worldwide, particularly those focused on heavy-duty applications, increasingly choose SVR CV60, how it performs under extreme conditions, and how companies like APT Rubber in Vietnam are contributing to global supply chains.
1. What Is SVR (TSR) CV60 Rubber?
SVR CV60 stands for Standard Vietnamese Rubber, and CV indicates Constant Viscosity. The “60” refers to the target Mooney viscosity (typically 60 ± 5 ML(1+4)@100°C).” It is a premium-grade block natural rubber made from field latex (not cup lump), ensuring higher purity and consistency, and is specially processed to maintain stable Mooney viscosity.
Origin: harvested from natural latex of Hevea brasiliensis trees in Vietnam
- Process: Involves de-ammoniation, coagulation (using acid or creaming agents), mechanical sieving, milling, drying, and compression into blocks
- Certification: Conforms to TCVN 3769:2016, Vietnam’s national quality standard for rubber
The “CV” designation means viscosity is tightly controlled during production, ensuring uniform mixing and performance in large-scale applications such as tire manufacturing, belts, and molded rubber parts.
2. Why Consistent Viscosity Matters for Tire Manufacturing
Tire compounds are carefully designed blends of natural rubber, synthetic rubber, carbon black, and additives.Within this formulation, natural rubber must behave predictably during mixing, extrusion, and vulcanization to maintain uniformity and product quality
SVR CV60 offers:
- Stable viscosity control: Ensures predictable mixing and extrusion
- Faster processing: Reduces mixing and extrusion defects in tire plants
- Reduces variation in cured rubber properties: Ensures consistent mechanical performance and quality
For high-volume tire manufacturers, this level of consistency is essential to reduce waste, streamline production, and maintain quality control across thousands of units per day.
3. Performance Benefits of SVR CV60 in Truck & Bus Tires
Truck and bus tires must handle extreme loads, long travel distances, varying temperatures, and rugged terrain. SVR CV60 enhances performance in several ways:
a. Superior Load-Bearing Strength
Natural rubber has excellent elasticity. When processed into CV60, this elasticity is retained but stabilized—perfect for high-pressure applications.
b. Thermal Stability
Heat buildup is a major concern in long-haul tires. SVR CV60 maintains its structural integrity, preventing blowouts and tread separation.
c. Improved Tread Life
Long-distance vehicles need longer-lasting tires. The uniform polymer structure of SVR CV60 leads to slower wear rates.
d. Enhanced Safety
SVR CV60 reduces micro-cracking in tires, leading to better resilience and improved safety over time.
4. SVR CV60 vs Other Rubber Grades
Rubber Grade | Key Benefit | Application |
SVR 10 | General durability | All-purpose automotive tires |
SVR 3L | Light color, low ash | Industrial and non-black rubber goods |
SVR CV60 | Constant viscosity, high strength | Truck, bus, and off-road tires |
SVR CV60 is more expensive than SVR 10 or SVR 3L, but it delivers higher value where performance matters most.
5. Use Cases in the Global Market
Manufacturers using SVR CV60 include:
- OEM tire makers (original equipment for trucks and buses)
- Retreading plants in developing countries
- Specialty tire producers for mining, forestry, and military vehicles
Countries importing SVR CV60 include China, India, South Korea, Turkey, and the UAE.
6. Why Choose Vietnamese Rubber – The APT Rubber Advantage
Vietnam is one of the world’s top exporters of natural rubber. Among its leading suppliers, APT Rubber stands out for its:
- Vertical integration: From farm collection to final processing
- Strict quality control: Every bale tested for Mooney viscosity, PRI, dirt, ash, and nitrogen
- International certification: ISO 9001:2015 and ISO 14001:2015
- Flexible packaging: Shrinkwrap pallets, loose bales, and wooden crates
- Global logistics experience: Exports to over 20 countries
With monthly capacity exceeding 2,000 tons, An Phuoc Thinh is a reliable long-term partner for tire producers worldwide.
7. Sustainability and Compliance
SVR CV60 is not just about performance. It’s also aligned with global goals:
- EUDR Compliance: Rubber sourced with traceability to farm level
- Environmental Standards: Energy-efficient drying and water treatment
- Worker Welfare: Fair wage policies, health and safety protocols
Tire manufacturers focused on ESG reporting increasingly prefer suppliers like APT Rubber who meet both product and social compliance requirements.
8. Packaging, Delivery & Support
APT Rubber offers customized logistics:
- MOQ (Minimum Order Quantity): We accommodate flexible order sizes to meet your business needs. Whether you require a full container load (FCL), less than container load (LCL), or small sampling orders by air, we’ve got you covered. For FCL shipments, the minimum order quantity is 1 x 20-foot container
- Payment Terms: L/C, T/T, DP, DA
- Delivery: FOB Ho Chi Minh or CIF to global ports
- Supporting documents for your shipment: We provide complete documentation with every shipment, including:
- Technical Data Sheets, Certificates of Analysis (COA)
- Certificates of Origin (Form E and other required forms upon request)
- Additional documents can be arranged to support your import processes, regulatory compliance, and quality assurance requirements.:
- After sales: Your Satisfaction Is Our Priority – Even After Delivery
- At APT Rubber, your purchase journey doesn’t end with delivery—it continues until you are fully satisfied. We’re committed to providing exceptional after-sales support, including technical consultation and prompt response to any concerns.
9. Customer Testimonials
10. Request a Quotation
Need a quotation for SVR CV60?
Visit https://aptrubber.com/contact-us or call us via WhatsApp/WeChat/Zalo at [email protected] / (+84) 918 35 2811 (Ms. Tram Mai)
11. Conclusion
SVR CV60 has proven itself in heavy-duty tire manufacturing due to its mechanical strength, process consistency, and long-term performance. With the added value of sustainability and a strong supplier like APT Rubber, it is a strategic choice for manufacturers aiming to lead in quality and reliability.
