Dalian Changhong Int’l Trade Co., Ltd. | Premium Rubber Chemicals & Additives Supplier

About Dalian Changhong

Dalian Changhong Int’l Trade Co., Ltd. is headquartered in the beautiful coastal city of Dalian, China. Founded in 2019, our team brings nearly a decade of foreign trade experience in rubber chemicals, enabling us to deliver reliable, high-quality products to global markets.

We specialize in a comprehensive range of rubber additives including accelerators, antioxidants, reinforcing fillers, antiscorching agents, adhesives, silane coupling agents, vulcanizing agents, plasticizers, rubbers, and masterbatches. Our products are widely used in tire manufacturing, conveyor belts, footwear, and various industrial rubber applications.

Expertise in rubber chemical exports
Focus on quality, consistency, and service
Direct supplier with competitive pricing
Technical support and formulation guidance

Our Product Range

We offer a wide selection of rubber chemicals and additives designed for performance, durability, and process efficiency.

MBT (M) - Mercaptobenzothiazole

Primary accelerator for natural and synthetic rubber. Offers excellent scorch safety and vulcanization efficiency.

CAS: 149-30-4
Purity: ≥99%
Form: Powder or granules
Use: Tires, hoses, belts

CBS (CZ) - N-Cyclohexyl-2-benzothiazole sulfenamide

Semi-ultra accelerator with excellent processing safety and fast cure rate.

CAS: 95-33-0
Purity: ≥98%
Form: Light yellow powder
Use: Tire treads, sidewalls

NS (TBBS) - N-tert-Butyl-2-benzothiazole sulfenamide

Ultra accelerator with excellent balance of scorch time and cure rate.

CAS: 95-31-8
Purity: ≥98%
Form: White to light yellow powder
Use: High-performance tires

4020 (6PPD) - N-(1,3-Dimethylbutyl)-N'-phenyl-p-phenylenediamine

Primary antioxidant and antiozonant. Protects rubber from ozone and flex cracking.

CAS: 7492-70-8
Purity: ≥98%
Form: Flakes or prills
Use: Tire sidewalls, outdoor rubber

TMQ (RD) - Polymerized 1,2-dihydro-2,2,4-trimethylquinoline

Antioxidant with excellent heat aging resistance and low volatility.

CAS: 26780-96-1
Purity: ≥98%
Form: Dark brown flakes
Use: Conveyor belts, hoses

Silane Coupling Agent Si-69

Bis-(triethoxysilylpropyl) tetrasulfide. Enhances filler-rubber bonding in silica-filled systems.

CAS: 40372-72-3
Purity: ≥95%
Form: Yellow to brown liquid
Use: Green tires, low rolling resistance

Vulcanizing Agent DTDM

Dithiodimorpholine. Efficient sulfur donor for low-sulfur vulcanization systems.

CAS: 103-36-6
Purity: ≥98%
Form: White crystalline powder
Use: Heat-resistant rubber products

Antiscorching Agent CTP (PVI)

N-Cyclohexylthiophthalimide. Delays onset of vulcanization for improved processing safety.

CAS: 17796-81-9
Purity: ≥98%
Form: White powder
Use: High-temperature mixing processes

MBT-80 Masterbatch

80% MBT on 20% carrier. Dust-free, easy dispersion, improved safety.

Active Content: 80%
Form: Pellets or tablets
Use: Automated dosing systems
Benefit: Reduced worker exposure

Carbon Black

Reinforcing filler that improves tensile strength, abrasion resistance, and UV protection.

Types: N110, N220, N330, N550, N660
Form: Powder or pellet
Use: Tires, belts, hoses
Function: Reinforcement & pigment

Dicumyl Peroxide (DCP)

Organic peroxide used as crosslinking agent for saturated rubbers.

CAS: 80-43-3
Purity: ≥98%
Form: White crystalline powder
Use: EPDM, silicone, fluororubber

Silicone Rubber (MVQ)

High-performance elastomer with excellent heat, ozone, and weather resistance.

Type: High consistency rubber (HCR)
Hardness: 30–80 Shore A
Use: Medical, automotive, aerospace
Feature: FDA compliant options

View Full Product Catalog

Frequently Asked Questions

What are your main product categories?

We specialize in rubber accelerators, antioxidants, vulcanizing agents, antiscorching agents, silane coupling agents, masterbatches, carbon black, silica, and specialty rubbers such as silicone and fluororubber.

Do you offer samples?

Yes, we provide samples upon request. Please contact us via email or phone to arrange sample shipment.

What is your minimum order quantity (MOQ)?

MOQ varies by product. For most chemicals, it starts at 25 kg. We are flexible and can accommodate trial orders.

Which regions do you export to?

We export globally, including Southeast Asia, India, the Middle East, Europe, South America, and Africa.

Can you customize formulations or packaging?

Yes, we offer custom masterbatches and can package products in 25 kg bags, drums, or bulk containers as needed.

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