Rubber Vulcanizing Agent

Rubber Vulcanizing Agent Manufacturer & Supplier

 

Great Bridge Chemical supplies rubber vulcanizing agents and curing additives for natural and synthetic rubber compounds. The product range includes TCY, DTDM, DTDC and PDM (HVA-2), covering different vulcanization and crosslinking requirements.
Each product has a different chemical structure and role in rubber compounding. Some act as sulfur donors, while others are used as curing agents or multifunctional crosslinking additives. Product selection depends on the rubber polymer, curing system, processing conditions and required properties of the finished product.

 
 
Product Types & Grades

TCY – Trithiocyanuric Acid

TCY is a specialty rubber curing agent used in selected halogenated and specialty elastomer systems. It is listed for applications involving ACM, CR, CIIR and BIIR, subject to formulation compatibility.

 

DTDM – 4,4'-Dithiodimorpholine

DTDM is a sulfur-donor vulcanizing agent for natural and synthetic rubber. It is used in efficient and semi-efficient vulcanization systems where controlled sulfur contribution is required.DTDM can also contribute to the acceleration of vulcanization.

DTDC – Caprolactam Disulfide

DTDC is a sulfur-donor vulcanizing agent used in natural and synthetic rubber compounds. It is considered for low-sulfur curing systems and selected applications involving thick-walled or injection-molded rubber products.

PDM (HVA-2) – N,N'-m-Phenylene Bismaleimide

PDM, commonly known as HVA-2, is a multifunctional rubber crosslinking additive. It is used in selected conventional and peroxide-curing systems, depending on the formulation.

 

Technical Specifications

 

Product

Chemical Name

CAS No

Available Form

TCY

Trithiocyanuric Acid

638-16-4

Powder

DTDM

4,4'-Dithiodimorpholine

103-34-4

Crystal, oiled crystal, granule

DTDC

Caprolactam Disulfide

23847-08-7

Powder

PDM (HVA-2)

N,N'-m-Phenylene Bismaleimide

Confirm by current TDS

Powder, oiled powder

 

Key Quality Parameters

Product

Parameters to Check

TCY

Appearance, purity, ash content, loss on heating and sieve residue

DTDM

Appearance, initial melting point, loss on drying, ash and product form

DTDC

Appearance, melting range, heat loss, ash and sieve residue

PDM (HVA-2)

Appearance, melting point, loss on drying, ash, sieve residue and oil content for oiled grades

Technical note: Specifications and test methods should be checked against the current product-specific TDS. Do not compare values from different grades or test methods as if they were equivalent. Buyers can request the latest specification sheet and batch COA before approval. 

 

Applications

Tire manufacturing: Sulfur-donor and crosslinking additives for selected tire compound formulations.

 

Conveyor belts: Curing systems for rubber compounds used in industrial conveying applications.

 

Rubber hoses: Vulcanization additives for natural and synthetic rubber hose compounds.

 

Automotive rubber components: Compounds for V-belts, molded parts and other rubber components.

 

Seals and gaskets: Curing additives for compounds requiring controlled crosslinking and defined compression properties.

 

Specialty elastomers: Selected ACM, CR, CIIR, BIIR and other rubber formulations, depending on product compatibility.

DTDM Rubber Sulfur Donor Vulcanizing Agent manufacturers

 

China Vulcanizing Agent PDM

 

Performance & Quality

Choosing a vulcanizing agent requires more than matching the product name to an application. Buyers and compound developers should evaluate:

Rubber polymer: NR, SBR, BR, EPDM, CR, ACM or other elastomers.

Curing chemistry: Conventional sulfur, efficient sulfur, semi-efficient sulfur or peroxide curing.

Processing conditions: Mixing temperature, storage time, molding temperature and cure cycle.

Scorch safety: The time available for processing before premature vulcanization occurs.

Final compound requirements: Heat aging, compression set, tensile properties, adhesion and other application-specific targets.

Product form: Powder, crystal, oiled material or granule, depending on handling and dispersion requirements.

 

Manufacturing & Quality Control
Heze Great Bridge Chemical Co., Ltd. holds ISO 9001:2015 certification. For purchasing evaluation, buyers can request product-specific TDS, SDS and batch COA documents. Relevant quality checks should be defined according to the grade, including appearance, melting behavior, moisture or loss on heating, ash, purity and particle-size control where applicable.

 

Packaging & Supply

 

Product

Published Packaging Information

TCY

25 kg composite paper bag with inner polyethylene liner

DTDM

25 kg plastic woven bag, lined paper bag or kraft paper bag

DTDC

20 kg paper-plastic composite bag

PDM (HVA-2)

25 kg kraft bag or other options subject to confirmation

Store products in their original sealed packaging in a cool, dry and well-ventilated area. Follow the product-specific SDS for storage, handling and safety requirements.

 

 

FAQ

 

 

Q: What is the difference between a sulfur donor and a rubber vulcanizing agent?

A: A sulfur donor releases sulfur during vulcanization and can contribute to crosslink formation in rubber compounds. The term rubber vulcanizing agent is broader and can include sulfur donors and other curing or crosslinking additives. The appropriate type depends on the rubber polymer and curing system.

Q: What is the difference between DTDM and DTDC?

A: DTDM and DTDC are both sulfur-donor vulcanizing agents, but they have different chemical structures and formulation characteristics. Their suitability depends on the polymer, accelerator combination, processing conditions and required cure properties. They should be evaluated separately rather than treated as interchangeable products.

Q: Which rubber vulcanizing agent is suitable for ACM rubber?

A: TCY is listed for use in selected ACM acrylic rubber formulations. Buyers should confirm compatibility with the specific ACM grade, curing system and compound formulation before production use.

Q: Can DTDM be used in an efficient vulcanization system?

A: Yes. DTDM is used as a sulfur donor in efficient and semi-efficient vulcanization systems. Its cure behavior depends on the accelerator combination, dosage and processing conditions. Compound testing is recommended to determine the appropriate formulation.

Q: What technical documents can I request?

A: Buyers can request the current TDS, SDS and batch-specific COA for the selected grade. If your application has specific purity, melting point, moisture, particle-size or other requirements, include them in your inquiry so the relevant specification can be checked.

Q: How can I select the right vulcanizing agent for my rubber compound?

A: Provide the rubber polymer, existing curing system, processing temperature, target application and required compound properties. The technical team can review these details and help identify a suitable product for laboratory evaluation.

 

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Request a Quote

Looking for a rubber vulcanizing agent for your production process?
Send Great Bridge Chemical the following information:
Required product or chemical name
Rubber polymer and target application
Existing sulfur or peroxide curing system
Required technical specifications
Preferred product form and packaging
Order quantity and destination country

Our team can provide product information, available technical documents and a quotation based on your requirements.
Contact Great Bridge Chemical
Email: export@greatbridge-chem.com
Tel: +86-530-5399496
WhatsApp: 86 158 0675 1555
Contact us for product specifications, samples and bulk supply inquiries.

With abundant experience, we are one of the most professional rubber vulcanizing agent manufacturers and suppliers in China. We warmly welcome you to buy high quality rubber vulcanizing agent in stock here and get pricelist from our factory. Good service and reasonable price are available.

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