In high-speed mechanical molding, continuous profiles, and advanced wire networks, driving fast vulcanization cycles while securing rugged mechanical performance properties is essential. Rubber Accelerator TMTD (universally known as TT) operates as a leading ultra-accelerator within the thiuram class. Chemically recognized as Tetramethylthiuram Disulfide (CAS No. 137-26-8), TMTD delivers robust cross-linking behavior when utilized as a primary or secondary accelerator in Natural Rubber (NR), SBR, NBR, and EPDM. Furthermore, containing roughly 13.3% available active sulfur, TMTD functions as an exceptional sulfur donor in efficient (EV) and semi-efficient vulcanization frameworks, providing treated compounds with remarkable heat-aging resistance and flat cure plateaus.
Technical Product Specifications
| Property / Parameter | Standard Specification |
|---|---|
| Chemical Name | Tetramethylthiuram Disulfide (TMTD / TT) |
| CAS Number | 137-26-8 |
| Molecular Formula | C6H12N2S4 |
| Appearance | White to off-white powder / oiled powder / dust-free granules |
| Initial Melting Point (°C) | ≥ 142.0 °C (First Grade) / ≥ 140.0 °C (Qualified Grade) |
| Loss on Drying (%) | ≤ 0.30% |
| Ash Content (%) | ≤ 0.30% |
| Sieve Residue (150 μm / 100 mesh) | ≤ 0.10% |
Why Choose Our TMTD (TT) Accelerator?
- ✓ High-Velocity Ultra-Activation: Yields fast vulcanization start-up behavior and robust cross-link networks at moderate curing temperatures, enhancing manufacturing speed in automated injection molding setups.
- ✓ Sustained Sulfur-Donor Integrity: Delivers non-blooming vulcanization profiles under low-sulfur or sulfurless vulcanization compounding protocols, generating monomolecular cross-links that yield superb heat resistance.
- ✓ Excellent Non-Staining Dispersibility: Leaves zero dynamic contact staining in technical rubber applications, ensuring color baseline stability across grey or colorful industrial mechanical moldings.
Primary Applications
Accelerator TMTD (TT) is globally integrated into Natural Rubber (NR), Styrene-Butadiene Rubber (SBR), Nitrile Rubber (NBR), and EPDM matrices:
Technical Molded Goods
Extensively applied in anti-vibration automotive dampers, industrial seals, gaskets, shoe outsoles, and heavy structural mechanical mounts.
Heat-Resistant Cables & Hoses
An ideal curing booster for continuous steam-vulcanized EPDM cable sheathings and high-temperature chemical transport hoses.
Tire Component Optimization
Utilized as an active secondary secondary booster alongside sulfenamides (CBS/TBBS) in tire carcasses and inner-liner compound batches.
Quality Assurance & Global Compliance
As a leading global partner in industrial chemical manufacturing, we understand that raw material purity, molecular consistency, and strict regulatory tracking directly safeguard your production line metrics. Our advanced manufacturing facilities maintain rigorous quality configurations to ensure total compliance and confidence across all international markets:
- Advanced Laboratory Quality Control: Every commercial batch of our Accelerator TMTD (TT) undergoes exhaustive laboratory verification—including precise melting point profiling, high-performance liquid chromatography (HPLC) active chemical fraction mapping, and moisture content calibration routines—ensuring complete batch uniformity.
- Comprehensive International Regulatory Compliance: We maintain a highly proactive approach to global chemical governance. All export shipments are systematically backed by complete regulatory documentation, including up-to-date, comprehensive multilingual GHS Safety Data Sheets (SDS), detailed Certificates of Analysis (CoA), and official tracking credentials fully matching EU REACH and US TSCA parameters.
- Optimized Packaging & Workspace Safety: To lower material handling loss and eliminate airborne chemical dust cross-contamination on your factory floor, we offer tailored logistics configurations. This includes standard multi-wall moisture-resistant kraft paper bags (25kg) lined with protective PE film, bulk jumbo supersacks (FIBCs), and dust-free oiled granule grades suited for automated weighing systems.
⚠ Storage & Handling Guidelines
Maintaining correct warehouse climate parameters is vital to maintain the active compound purity profiles of Accelerator TMTD. Because thiuram chemicals carry high reactive potential under moisture exposure, sub-optimal storage states can cause slow degradation or material clumping.
- • Warehouse Climate Control: Store the chemical bags within cold, thoroughly dark, and shaded warehouse bays. Keep storage alleys isolated from moisture footprints, direct solar heating, open steam piping, and strong acid matrices.
- • Stacking & Caking Prohibitions: Avoid excessive double-pallet storage configurations during peak summer thermal spells to eliminate localized compound hardening or granular compaction risks.
- • Inventory Shelf Lifespan: Under appropriate sealed warehouse storage, our premium TMTD granules carry a certified shelf life of 24 months from the date of manufacture. Adhering to a strict First-In, First-Out (FIFO) material rotation system is advised.
Frequently Asked Questions
What is the core distinction between running TMTD as an ultra-accelerator versus a sulfur donor? +
How does TMTD behave with primary sulfenamide accelerators like CBS or TBBS? +
What alternative options exist for plants requiring nitrosamine-safe thiuram equivalents? +
Partner with a Reliable Chemical Supplier
We provide premium-grade Rubber Accelerator TMTD (TT) meticulously processed to meet high international technical specifications. Available in uniform crystalline powders and custom dust-free granulate selections to ensure absolute batch stability inside your factory mixing systems.
