Contents
- 1 What is SVR 3L Rubber and Why It Matters
- 2 Key Specifications of SVR 3L Rubber
- 3 Industrial Applications of SVR 3L Rubber
- 4 Benefits of SVR 3L for Manufacturers & Exporters
- 5 SVR 3L vs RSS 3: Which Should You Choose?
- 6 Why Buyers Trust SVR 3L from Ngoc Chau
- 7 📩 Ready to Source SVR 3L?
- 8 ❓ Frequently Asked Questions
Industrial buyers are under pressure to reduce material waste, ensure consistency, and choose suppliers they can trust. But when it comes to natural rubber, choosing the right grade can be confusing. So—what is SVR 3L rubber, and why do global manufacturers prefer it?
In this article, Ngoc Chau Rubber’ll explain what SVR 3L rubber is, how it’s used across multiple industries, and why it offers high industrial value—especially for manufacturers in adhesives, footwear, tapes, and rubber parts.
What is SVR 3L Rubber and Why It Matters
SVR 3L stands for Standard Vietnamese Rubber 3L, a technically specified natural rubber grade (TSR) produced in Vietnam. It is made from field latex and refined through a rigorous process under ISO 2000:2014 and TCVN 3769:2016 standards.
The “3L” designation indicates:
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Low impurity
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Light color
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Stable processing behavior
This makes SVR 3L a premium natural rubber for industries that rely on consistent viscosity, visual cleanliness, and reduced waste during production.
✅ SVR 3L rubber is a clean, ISO-certified natural rubber ideal for industrial manufacturing with minimal contamination and strong physical properties.
Key Specifications of SVR 3L Rubber
Manufacturers and engineers often prioritize purity, viscosity, and durability when selecting rubber materials. SVR 3L is engineered to meet all these expectations.
| PROPERTY | TEST RESULT | STANDARD LIMIT | METHOD |
|---|---|---|---|
| Dirt Content | 0.005% | ≤ 0.03% | TCVN 6089 / ISO 249 |
| Ash Content | 0.2% | ≤ 0.5% | TCVN 6087 / ISO 247-1 |
| Volatile Matter | 0.19% | ≤ 0.8% | TCVN 6088 / ISO 248-1 |
| Nitrogen Content | 0.43% | ≤ 0.6% | TCVN 6091 / ISO 1656 |
| Wallace Plasticity (P₀) | 40.1 | ≥ 35 | TCVN 8493 / ISO 2007 |
| Plasticity Retention Index (PRI) | 79 | ≥ 60 | TCVN 8494 / ISO 2930 |
| Lovibond Color Index | 4.3 | ≤ 6 | TCVN 6093 / ISO 4660 |
🧪 SVR 3L from Ngoc Chau is certified by the Rubber Research Institute of Vietnam.
SVR 3L rubber bale from Vietnam – low impurity and high brightness
Industrial Applications of SVR 3L Rubber
SVR 3L’s balance of purity, elasticity, and viscosity makes it suitable for a wide range of industrial applications:
✅ Footwear Manufacturing
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Improves elasticity in soles
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Ensures color consistency for visible rubber parts
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Reduces molding defects and excess trimming
✅ Adhesive Production
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Blends well in rubber-based glues
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Enhances bonding strength and visual clarity
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Offers predictable flow for formulation consistency
✅ BOPP Tape
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Strengthens rubber backing for stretchable tapes
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Reduces breakage and delamination
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Helps ensure even coating
✅ Rubber Components
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Used in gaskets, seals, vibration dampers
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Offers durability under stress
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Reliable for molding without shrinkage
Benefits of SVR 3L for Manufacturers & Exporters
Choosing SVR 3L offers practical production and procurement advantages:
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🧼 High purity = less contamination and scrap
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⚙️ Stable Mooney viscosity = consistent molding
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🎨 Bright appearance = better visual products
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🌍 Export-ready = comes with COA, MSDS, TDS
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📦 Packaging options = bale, pallet for 20DC containers
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🔧 Technical support = includes consultation on formulation and processing
SVR 3L vs RSS 3: Which Should You Choose?
| Feature | SVR 3L | RSS 3 |
|---|---|---|
| Impurity Level | 0.005% (very low) | ~0.1%–0.2% |
| Color | Light yellow/ivory | Darker brown / gray |
| Viscosity Stability | High (Mooney ~40–50) | More variable |
| Certification | ISO + TCVN certified | Depends on supplier |
| Best Use Cases | Adhesives, footwear, tapes, sealing | Reprocessing, tires |
👉 If your product requires precision, aesthetics, or strong bonding: choose SVR 3L.
RSS 3 may be more appropriate for high-volume tire manufacturing or non-visual applications.
Why Buyers Trust SVR 3L from Ngoc Chau
Ngoc Chau Natural Rubber supplies SVR 3L globally, trusted by traders and manufacturers across 20+ countries.
🌟 Our Advantages:
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Full compliance: ISO 2000:2014 / TCVN 3769:2016
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Transparent quality: COA, MSDS, TDS on request
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Custom packing: 33.33kg or 35kg bales, on pallet or loose
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Global logistics: 20DC container load, flexible shipping timelines
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Multilingual support: English, Russian, Vietnamese
📩 Ready to Source SVR 3L?
Contact Ngoc Chau to receive:
✅ Technical test reports
✅ A free sample
✅ Competitive FOB or CIF pricing
❓ Frequently Asked Questions
Q1. What does SVR 3L mean in rubber?
SVR stands for Standard Vietnamese Rubber. 3L is a clean, technically specified grade used in industrial applications.
Q2. Is SVR 3L suitable for adhesives and tapes?
Yes. Its clean color, bonding strength, and flow stability make it ideal for adhesive products and BOPP tape.
Q3. Does SVR 3L meet international standards?
Yes. SVR 3L is certified to ISO 2000:2014 and TCVN 3769:2016, with lab test reports available.
Ms Evan