SVR CV50 (TSR CV50) Natural Rubber
Constant-viscosity natural rubber with Mooney ML(1+4) 100°C: 50 ± 5, commonly used in automotive components, industrial rubber goods, and molded applications requiring balanced flow and process stability. Manufactured in Vietnam, with EUDR-aligned supply available upon request.
Product: SVR CV50 with Constant Viscosity (50±5) | EUDR Compliant
Status: 
In Stock & Ready to Ship
| Grade |
Reference SVR CV50 Price (FOB) |
Valid Until |
| SVR CV50 | From $2020 USD / MT* | 11/01/2026 |
*Note: Indicative price based on current market. Subject to volume available and APT’s final confirmation.
- 6-Month Guarantee on stable Mooney viscosity
- Direct sourcing from manufacturer
- Flexible Ordering for trial quantity and samples
Compared to higher-viscosity CV grades, SVR CV50 offers improved flow characteristics, reduced mastication energy, and smoother mixing behavior—making it ideal for general-purpose rubber goods and non-critical automotive components.
Common Questions about SVR CV50
Is your SVR CV50 EUDR Compliant?
APT Rubber offers EUDR-aligned supply options for SVR CV50. Traceability documentation and due-diligence information can be provided upon request to support customers’ EUDR compliance processes.
Do you provide a Certificate of Analysis (COA)?
Each shipment of SVR CV50 is accompanied by a Certificate of Analysis (COA), with testing conducted in accordance with TCVN 3769:2016.
Does your SVR CV50 require premastication?
In most applications, SVR CV50 does not require premastication. Its lower Mooney viscosity compared to CV60 allows easier mixing and faster dispersion, helping manufacturers reduce processing time and energy consumption.
What is the difference between SVR CV50 and SVR CV60?
The primary difference lies in viscosity level.
Both SVR CV50 and SVR CV60 are constant-viscosity natural rubber grades manufactured with strict Mooney control (±5).
SVR CV50 (50±5) is selected when a lower Mooney value is required for compound design, while SVR CV60 (60±5) is used where higher viscosity is needed.
What applications use SVR CV50?
SVR CV50 is widely used in:
- Automotive rubber components
- Industrial molded goods
- Rubber hoses and profiles
- Adhesives and general-purpose rubber compounds
Its balanced viscosity supports stable processing across a wide range of formulations.
What standards does SVR CV50 comply with?
SVR CV50 is produced in accordance with TCVN 3769:2016 for technically specified rubber (TSR). Each batch is tested to ensure compliance with the required physical and chemical parameters, and a Certificate of Analysis (COA) is provided with shipment.
Packaging & Shipping DAta
APT Rubber offers flexible packing solutions for our natural rubber products to meet diverse international shipping requirements. We provide standard 33.33kg and 35kg bales, wrapped in either Thin PE (dispersible) or Thick PE (strippable) film based on your processing needs.
Customers can choose between Loose Bale packing for maximum tonnage or Pallets for easier unloading. Our standard 20ft container load capacity ranges from 19.2 Metric Tons (MT) to 21 Metric Tons (MT).
| Specification | Details |
| Bale Weight | 33.33 kg or 35 kg |
| Bale Wrapping (PE) | Thin PE (Dispersible) or Thick PE (Strippable) |
| Packing Methods | Loose Bales (Floor Loaded) or Pallets |
| Container Capacity (20ft) | Pallet: 19.20 MT – 20.16 MT / Loose Bales: 21 MT |
Stabilize Your Production with Premium SVR CV50
Don’t let viscosity fluctuations slow down your mixing line. APT Rubber produces SVR CV50 (Constant Viscosity) specifically for manufacturers who require precision.
Unlike standard grades, our CV50 undergoes a rigorous viscosity-stabilization process using industry-standard agents to inhibit storage hardening. Our formulae guarantees a Mooney Viscosity of 50 (+/- 5) upon arrival at your factory.
Why Leading Manufacturers Choose APT Rubber:
- Guaranteed Stability: We guarantee minimum 6 months of Mooney viscosity stability. We understand shelf-life is your main concern, and unlike others, we commit to this claim.
- Energy Saving: Our soft, stable rubber requires minimal mastication, significantly reducing your electricity costs and mixing time.
- EUDR Ready: We provide full traceability data (geolocation) for every container, ensuring your products are safe for the European market.
- 25+ Years of Expertise: Established in 1998, we have over two decades of experience in processing natural rubber.
- Global Trust: Our SVR CV60 is currently trusted by buyers in USA, India, Korea, Japan, Germany and Malaysia.
- Direct Sourcing: Buy directly from our Vietnam factory to eliminate middleman margins.
- 2 FACTORIES
Located in Dong Nai and Quang Ngai Province, Vietnam
- 40,000 MT/YEAR
Wet latex line – 20,000 MT
Cup lump line – 20,000 MT
- QUALITY
TCVN 3769:2016
ISO 19001:2015
- GREEN
ISO 14001:2015
EUDR Compliance
Technical Data (TCVN 3769:2016)
Our SVR CV50 is rigorously tested to meet or exceed national standards.
| Parameter | Limit | APT Rubber Result |
| Mooney Viscosity (ML 1+4, 100°C) | 50 ± 5 | Strictly Controlled |
| Dirt Content (max % wt) | 0.02 | ≤ 0.02% (High Purity) |
| Ash Content (max % wt) | 0.40 | ≤ 0.50% |
| Nitrogen Content (max % wt) | 0.60 | ≤ 0.60% |
| Volatile Matter (max % wt) | 0.80 | ≤ 0.80% |
| Plasticity Retention (PRI) (min) | 60 | > 60 (High Aging Resistance) |
| Lovibond Color | – | Yellow |
Evaluate the best grade for your technical and cost targets
💡 Customization Note: While strictly adhering to TCVN 3769:2016, we offer custom blending services to adjust finished product parameters to your specific manufacturing requirements. Contact us to discuss your technical profile.
Our Quality Control Process
From the rubber farm to the final bale, we monitor 5 critical control points to ensure our “6-Month Stability” guarantee. This grade is manufactured in our owned Vietnam natural rubber manufacturing facilities under ISO-aligned quality systems.
Latex Reception: Screening for DRC and Ammonia content.
Viscosity Stabilization: Precise dosing of stabilizers agent.
Mechanical Processing: Crumbing and washing to remove dirt (0.02% limit).
Drying: Controlled temperature to maintain plasticity (PRI > 60).
Lab Testing: Every pallet is tested for Mooney Viscosity before packing.
Our natural rubber processing production line is supplied and maintained periodically by Quang Trung Mechanical Co., Ltd., a reputable company in the mechanical industry, manufacturing production lines, laboratory equipments and waste water treatment systems in Vietnam rubber industry.
Audited under ISO 9001 & ISO 14001 systems
APPLICATIONS
With its Mooney viscosity of 50±5, SVR CV50 supports efficient mixing and stable processing across a wide range of general-purpose rubber applications.
- General-purpose pressure-sensitive adhesives (PSA)
- Rubber-based bonding agents
- Packaging and carton sealing adhesives
- Inner tubes and curing bladders
- Rubber sheets and calendered compounds
- Non-critical automotive rubber parts
- Rubber mats and flooring
- General-purpose molded rubber goods
- Flexible hoses and low-pressure tubing
- Rubber bands and elastic products
- Footwear components and soles
- Household and leisure rubber items
👉Explore Related SVR Grades
Constant Viscosity (60±5). A firmer alternative to CV50, offering excellent flow and reduced energy consumption during mixing.
EUDR Compliant.
Light-colored, high-purity rubber with low dirt content (0.03%). The industry standard for adhesives, medical parts, and colored products.
✅ EUDR Compliant.
