Rubber Accelerators
Rubber Accelerators for Tire and Industrial Rubber Manufacturing
Rubber accelerators regulate the rate of sulfur vulcanization in rubber compounds. The right accelerator system helps manufacturers control curing time, scorch safety, and processing behavior while achieving the required properties in finished rubber products.
Heze Great Bridge Chemical Co., Ltd. supplies rubber accelerators across seven chemical families: sulfenamides, thiazoles, thiurams, guanidines, dithiocarbamates, thioureas, and aldehyde-amine accelerators.
Available grades include MBT, MBTS, TMTD, DPG, DOTG, TBSI, ETU, DBTU, ZTC, and other products. Depending on the grade, products are available in powder, oiled powder, or granular form.
Product Types & Grades
|
Accelerator Family |
Representative Grades |
Typical Role in Rubber Compounding |
|
Sulfenamides |
TBSI, CBS, TBBS |
Delayed-action acceleration and improved scorch safety |
|
Thiazoles |
MBT, MBTS, ZMBT |
Primary or secondary acceleration in conventional sulfur curing systems |
|
Thiurams |
TMTD, TMTM, TBzTD |
Fast acceleration; selected grades can also act as sulfur donors |
|
Guanidines |
DPG, DOTG |
Commonly used as secondary accelerators with thiazoles or sulfenamides |
|
Dithiocarbamates |
ZTC, ZDEC, ZDBC |
Very fast acceleration; selected grades are used in latex systems |
|
Thioureas |
ETU, DBTU, DPTU |
Used in specific curing systems, particularly chloroprene and specialty rubber applications |
|
Aldehyde-amine |
Grade selection according to product availability |
Used in selected rubber vulcanization formulations |
Available Physical Forms
Powder: For conventional rubber mixing and compounding processes.
Oiled powder: Contains a specified processing additive to help reduce dust and improve handling.
Granules: Suitable for controlled feeding and production processes where reduced dust is preferred.
Technical Specifications
Technical specifications differ by chemical composition and product grade. Buyers should compare individual product data rather than apply one specification to the entire accelerator range.
|
Parameter |
MBT (M) |
TMTD (TT) |
DPG (D) |
DBTU |
|
Appearance |
Light yellow powder/granules |
White or light gray powder/granules |
Gray-white powder/granules |
White powder |
|
Initial Melting Point (°C), min. |
171 |
142 |
145 |
148 |
|
Loss on Drying (%), max. |
0.30 |
0.30 |
0.30 |
0.30 |
|
Ash (%), max. |
0.30 |
0.30 |
0.30 |
0.30 |
|
Residue on 150 μm Sieve (%), max. |
0.10 |
0.10 |
0.10 |
0.10 |
Applications
Tire Manufacturing
Used in selected tire compounds, including tread, sidewall, and other rubber components. Accelerator combinations help control curing characteristics and processing safety.
Conveyor Belts and Transmission Belts
Used in belt compounds where controlled vulcanization is required for consistent production of industrial rubber products.
Rubber Hoses and Sealing Components
Applied in selected hose, gasket, oil seal, sealing ring, and molded rubber formulations.
Automotive Rubber Parts
Used in rubber compounds for sealing strips, dust covers, vibration-control components, and other automotive applications.
Wire and Cable Products
Selected accelerator systems are used in rubber insulation and sheathing compounds, depending on the polymer and curing requirements.
Rubber Latex Products
Certain fast accelerators, particularly selected dithiocarbamate grades, are used in latex processing and related curing systems.
Performance & Quality Control
Accelerator quality can influence compound consistency, mixing behavior, and vulcanization results. Great Bridge Chemical supports its rubber chemical supply with specialized production facilities and product inspection systems.
Production and Process Equipment
The company's production system includes reactors, dryers, pulverizers, granulators, mixing equipment, and automated process control systems. These facilities support the production and processing of different rubber chemical products.
Product Quality Inspection
Depending on the product grade, relevant inspection items include:
Appearance and physical form
Initial melting point
Loss on drying
Ash content
Sieve residue and particle-size control
Active component or additive content where applicable
Quality Documentation
TDS, SDS, and batch COA are available to support technical evaluation and incoming material inspection.
Great Bridge Chemical operates under an ISO 9001:2015-certified quality management system. Buyers can request the relevant quality documents and product specifications when evaluating a grade.
Packaging & Supply
Standard packaging configurations designed to prevent moisture ingress, caking, and contamination during international transit:
25 kg multi-layer kraft paper bags with inner polyethylene liners.
500 kg to 1000 kg woven polypropylene bulk bags (FIBC) with inner liners.
Palletized and stretch-wrapped configurations secured for containerized ocean freight.
Customized private labeling and net-weight packaging available for volume distributors.
Supply chain operations maintain dedicated warehousing near major export ports, ensuring stable lead times and continuous inventory availability for scheduled contract shipments.
FAQ
Request a Quote
Looking for a rubber accelerator for tire compounds, industrial rubber products, or latex processing?
Send us the following information to help identify suitable grades:
Required accelerator grade, if known
Rubber polymer (NR, SBR, NBR, EPDM, CR, or other)
Application or finished rubber product
Required physical form and specification
Estimated order quantity and destination
Great Bridge Chemical can provide product information, available samples, technical documents, and a quotation based on your purchasing requirements.
Contact Us
Email: export@greatbridge-chem.com
Tel: +86-530-5399496
WhatsApp: 86 158 0675 1555
Request Your Rubber Accelerator Quotation.
With abundant experience, we are one of the most professional rubber accelerators manufacturers and suppliers in China. We warmly welcome you to buy high quality rubber accelerators in stock here and get pricelist from our factory. Good service and reasonable price are available.