In high-specification elastomer engineering, minimizing processing hazards while maximizing dispersion quality determines production success. Pre-Dispersed Rubber Accelerator ETU (also known globally as NA-22) represents the premier choice for specialty rubber compounding. Chemically based on Ethylene Thiourea (CAS No. 96-45-7), our pre-dispersed masterbatch integrates active crystals directly into a tailored elastomer binder matrix. This conversion of fine, hazardous chemical powder into homogeneous, dust-free pellets provides processing lines with exceptional homogeneity, eliminating focal cross-linking defects and stabilizing production yields.
Technical Product Specifications
| Property / Parameter | Standard Specification |
|---|---|
| Active Substance Name | Ethylene Thiourea (ETU / NA-22) |
| CAS Number (Active) | 96-45-7 |
| Active Concentration (%) | 70% / 75% / 80% (Custom variations available) |
| Binder Matrix Options | EPDM / EVA / Eco-compatible polymer carriers |
| Appearance | White or off-white dust-free granules / cylindrical pellets |
| Density (g/cm³) | Typical 1.10 – 1.25 g/cm³ (depending on active content) |
| Moisture Content (%) | ≤ 0.30% |
Why Choose Our Pre-Dispersed ETU (NA-22)?
- ✓ Total Dust Elimination for Plant EHS: Raw ETU powder presents strict occupational health challenges. By locking the active chemical inside a polymer-bound matrix, our pellets eliminate airborne dust, ensuring compliance with strict international safety standards.
- ✓ Flawless Macro-Dispersion: Unmilled raw ETU particles often clump during low-temperature polychloroprene mixing. Our masterbatch features pre-micronized active crystals that break down uniformly under mill shear, preventing localized over-curing spots.
- ✓ Superior Vulcanization Properties: ETU acts as the critical primary vulcanizing accelerator for specialty elastomers. It imparts excellent tensile strength, a high modulus plateau, low compression set, and outstanding aging characteristics.
Primary Applications
Our pre-dispersed ETU masterbatch is uniquely engineered for high-performance specialty synthetic elastomer formulations:
Polychloroprene (CR) Curing Systems
The industry baseline cross-linking agent for neoprene compounds, providing critical structural strength for industrial synchronous belts, diving suits, and engine mounts.
Automotive Hoses & Polyurethane Parts
Perfect for heat-resistant automotive coolant hoses, turbocharger duct lines, fuel seals, and specialty cast polyurethanes requiring robust matrix integrity.
Epichlorohydrin (ECO) Elastomers
Extensively incorporated into specialized oil-field components, high-impermeability fuel diaphragms, and roll coverings requiring strict curing profile consistency.
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 pre-dispersed ETU masterbatch undergoes rigorous testing—including moving die rheometer (MDR) verification curves to monitor cross-linking uniformity, active density screening, and filtration mesh testing—ensuring flawless batch-to-batch consistency.
- 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 carton boxes (25kg) lined with protective PE sheets, or custom bulk cardboard container configurations perfectly suited for automated weighing systems.
⚠ Storage & Handling Guidelines
Maintaining correct climate-controlled conditions is essential to protect the molecular performance stability of pre-dispersed masterbatches. Because polymer-bound matrices can soften under intense heat, sub-optimal warehouse conditions can cause pellets to fuse or block together.
- • Strict Temperature Controls: Store the chemical inside a completely dry, cool, and well-ventilated dedicated warehouse. Keep storage temperatures strictly below 35°C to prevent matrix nesting or consolidation. Keep away from heating vents or hot pipelines.
- • Stacking & Weight Limits: Avoid excessive structural double-stacking of pallets. Excessive weight loading can cause compaction among lower pellets, altering material handling characteristics during automatic dosing.
- • Shelf Life & Rotation: Under standard cool, shaded warehouse conditions, our premium pre-dispersed ETU masterbatch exhibits a certified shelf life of 12 months from the date of manufacture. A strict First-In, First-Out (FIFO) batch cycle is strongly advised to maximize production uniformity.
Frequently Asked Questions
What is the strategic value of using a pre-dispersed ETU masterbatch over raw powder? +
How do I determine binder carrier compatibility with my current formulation? +
Does using the pre-dispersed pellet alter my required active compound dosing (phr)? +
Partner with a Reliable Chemical Supplier
We provide premium-grade Pre-Dispersed Rubber Accelerator ETU (NA-22) masterbatches meticulously processed to ensure excellent macro-dispersion behavior. Available in various custom active loadings and binder carrier systems to fit your automated dosing lines and internal processing metrics perfectly.
