
Methyl Tin Mercaptide Stabilizer
High-efficiency organotin stabilizer for rigid PVC with exceptional thermal stability and clarity.
VT-1900 is a premium methyl tin mercaptide stabilizer engineered for high-performance rigid PVC applications. It delivers outstanding initial color hold, long-term thermal stability, and excellent transparency. With a tin content optimized for cost-efficiency, VT-1900 is the go-to choice for pipe, profile, and sheet manufacturers demanding consistent batch-to-batch performance.
Key Features
Excellent initial color and long-term thermal stability
Superior transparency for crystal-clear PVC products
High PVC compatibility with minimal plate-out
Low dosage requirement — reduces formulation cost
Sulfur-free odor profile
FDA / EU food-contact compliant variants available
Technical Specifications
| Appearance | Colorless to pale yellow transparent liquid |
| Tin Content | 19.0% ± 0.5% |
| Specific Gravity (25°C) | 1.16 – 1.19 |
| Refractive Index | 1.505 – 1.515 |
| Viscosity (25°C) | ≤ 80 mPa·s |
| Sulfur Content | 10.5% – 12.5% |
| Color (Pt-Co) | ≤ 100 |
| Flash Point | ≥ 180°C |
Application Areas
- Rigid PVC pipes (pressure & drainage)
- PVC profiles and window frames
- Transparent PVC sheets and boards
- PVC film and blister packaging
- Bottles and containers (food grade)
Packaging Options
- 200KG UN-certified steel drum
- 1000KG IBC tote (Schütz / Mauser)
- Flexitank for bulk ocean freight
- Custom OEM packaging available
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