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Trioctyl Trimellitate (TOTM) from WSD CHEMICAL is a premium-grade, high-performance trimellitate plasticizer engineered for applications demanding exceptional resistance to high temperatures, prolonged heat aging, and extraction.
Item | Index | Test Method |
Appearance | Clear, Colorless to Slight Yellow, Viscous Liquid | Visual |
Ester Content | ≥ 99.0% | GB/T 1665 |
Acid Value | ≤ 0.10 mg KOH/g | GB/T 1668 |
Color (Pt-Co) | ≤ 100 | GB/T 3143 |
Moisture Content | ≤ 0.10% | Karl Fischer |
Density (20°C) | 0.985 - 0.995 g/cm³ | GB/T 4472 |
Flash Point (COC) | ≥ 245 °C | GB/T 3536 |
Viscosity (20°C) | 150 - 300 mPa·s | GB/T 265 |
Outstanding High-Temperature Endurance: The core advantage of WSD CHEMICAL's TOTM is its exceptional resistance to high temperatures. It exhibits extremely low volatility and minimal weight loss at temperatures exceeding 125°C, making it ideal for 105°C and 125°C rated wire and cable insulation.
Superior Permanence & Low Migration: Its high molecular weight and complex aromatic structure result in extremely low migration into adjacent materials and high resistance to extraction by oils, fuels, and solvents. This ensures long-term retention of flexibility and physical properties.
Excellent Electrical Properties: Provides stable and high volume resistivity, making it the plasticizer of choice for high-temperature, high-voltage electrical insulation where consistent dielectric performance is critical.
Good Compatibility & Plasticizing Efficiency: Compatible with PVC, polyurethane, and other polar polymers. While its plasticizing efficiency is slightly lower than phthalates, it offers an unmatched balance of permanence and flexibility in harsh environments.
Long-Term Heat Aging Resistance: Compounds plasticized with TOTM from WSD CHEMICAL show significantly less embrittlement and property degradation after extended exposure to heat, far outperforming phthalates and other common plasticizers.
· High-Temperature Wire & Cable: Primary plasticizer for 105°C, 125°C, and even 150°C rated insulation and sheathing in automotive, aerospace, and industrial cables.
· Automotive Under-the-Hood Components: Engine compartment wiring, gaskets, and seals requiring resistance to high ambient temperatures and oil/fuel exposure.
· PVC Films & Sheets for Demanding Environments: Used in applications like solar panel backsheets or industrial membranes where long-term heat and UV stability are required.
· Specialty Adhesives & Sealants: For applications needing high-temperature performance and low migration.
· Typical Loading in PVC: 30 - 60 phr (parts per hundred resin), depending on the required flexibility and temperature rating.
· Formulation Guidance: For optimal high-temperature performance, it is often used in conjunction with appropriate heat stabilizers (e.g., lead-based or advanced calcium-zinc systems from WSD CHEMICAL). Our technical team can provide formulation support.
· Packaging: Available in 200 kg drums, 1000 kg IBC totes.WSD CHEMICAL ensures packaging integrity for this high-value product.
· Storage: Store in a cool, dry, well-ventilated area away from heat and open flames. Keep containers tightly closed to prevent contamination.
· Shelf Life: 24 months from the date of manufacture when stored under recommended conditions.
· General Handling: Use with adequate ventilation. Avoid prolonged skin contact. Standard PPE (gloves, safety glasses) is recommended.
· Regulatory Status: TOTM is generally considered a safer alternative to certain phthalates in many high-temperature applications. However, for specific end-use compliance (e.g., automotive, electrical standards), please consult the relevant specifications and the Safety Data Sheet (SDS) provided by WSD CHEMICAL.
1.Trioctyl trimellitate/TOTM is a heat-endurant and long-lasting plasticizer
2.TOTM plasticizer mainly used on 105℃ electrical cable and other heat-resisting plastic products
3.TOTM plasticizer also used with other plasticizer together