Manufacturer Direct Supply | High-Purity Rubber Additives | Quality Guaranteed
In rubber manufacturing, scorch retarders play a critical role in improving processing safety, production efficiency, and final product quality. CTP (PVI)—also known as N-Cyclohexylthiophthalimide—is widely recognized as one of the most effective rubber scorch retarders in the industry due to its excellent anti-scorch performance and stable chemical properties.
As a professional manufacturer and direct supplier of CTP (PVI), Qingdao Chengda Huili Import and Export Co., Ltd. provides high-purity rubber additives in bulk, eliminating unnecessary intermediaries and helping rubber manufacturers reduce procurement costs while ensuring consistent quality and reliable supply.
Why Choose CTP (PVI) as Your Rubber Scorch Retarder?
1. High Purity for Stable and Reliable Performance
Our CTP (PVI) scorch retarder is produced with a purity of ≥99.5%, achieved through multiple precision purification processes that effectively remove thiols, heavy metals, and other impurities. This high purity ensures excellent chemical stability and precise scorch control during rubber processing.
CTP (PVI) is compatible with natural rubber (NR) and a wide range of synthetic rubbers, including SBR, NBR, BR, and EPDM, making it a reliable choice for diverse rubber formulations. Its stable performance helps reduce premature vulcanization risks and improves production consistency.
2. Excellent Anti-Scorch Efficiency Without Affecting Vulcanization
CTP (PVI) delivers strong scorch inhibition at low dosage, significantly extending scorch safety time while maintaining normal curing speed and crosslink density.
By improving processing safety, manufacturers gain:
- Longer processing window
- Fewer production interruptions
- Higher daily output
- Consistent mechanical properties such as tensile strength, elasticity, and abrasion resistance
This balance of high efficiency and performance stability makes CTP (PVI) an essential additive for modern rubber manufacturing.
3. Environmentally Responsible and Standards-Compliant
Our CTP (PVI) is manufactured using environmentally responsible processes and complies with major industry and regulatory standards, including:
- GB/T 21186-2007 (China Rubber Scorch Retarder Standard)
- REACH Regulation (EU)
- SGS-tested for safety and compliance
The product does not release harmful gases during processing and supports safer working environments, helping rubber manufacturers meet increasingly strict environmental and safety requirements.
Manufacturer Direct Supply of High-Purity Rubber Additives
With over 15 years of experience in the rubber chemical industry, Qingdao Chengda Huili Import and Export Co., Ltd. operates an integrated production system supported by advanced automated equipment and a professional technical team.
Our manufacturer-direct supply model offers:
- Competitive factory pricing
- Stable long-term supply
- Consistent batch quality
- Flexible bulk purchasing options
We support trial orders and large-volume wholesale, providing customized recommendations on dosage and formulations based on your specific rubber compounds and processing conditions.
A reliable logistics network ensures timely and secure delivery worldwide, minimizing downtime and keeping your production running smoothly.
Wide Applications of CTP (PVI) Rubber Scorch Retarder
CTP (PVI) is widely used in the production of various rubber products, including:
- Tires (passenger, commercial, and off-road tires)
- Rubber seals and gaskets
- Rubber hoses and tubes
- Conveyor belts
- Shock-absorbing rubber components
- Cable sheathing
- Rubber footwear soles
Its stable performance under both high-temperature and low-temperature vulcanization systems makes it a versatile and indispensable rubber processing additive.
Partner with a Reliable CTP (PVI) Manufacturer
Choosing the right CTP (PVI) scorch retarder supplier is essential for improving product quality, reducing production risks, and controlling costs. At Qingdao Chengda Huili Import and Export Co., Ltd., we are committed to:
- High-purity, consistent-quality products
- Manufacturer-direct pricing
- Professional technical support
- Responsive customer service
If you are looking for a trusted CTP (PVI) manufacturer, bulk rubber additive supplier, or long-term partner, please contact us for technical data sheets, samples, and competitive quotations.
Let us help you achieve safer processing, higher efficiency, and superior rubber product quality.