Passenger Car Tire Anti-Scorching Agent CTP (PVI): Safeguarding Production Quality & Driving Safety

Optimize your passenger car tire production with our high-purity Anti-Scorching Agent CTP (PVI). Prevent rubber scorch, improve yield rates, and ensure tire safety. compliant with REACH/EPA standards.

In the automotive industry, passenger car tires are the critical components responsible for carrying the vehicle’s weight and transmitting power. Their quality directly dictates driving safety, comfort, and durability. For tire manufacturers, rubber scorching (premature vulcanization) during the processing stage is a major pain point, leading to reduced yield rates, rising production costs, and unstable quality.

The Passenger Car Tire Anti-Scorching Agent CTP (PVI) provides a precise and stable solution to this industry challenge, serving as a key additive for manufacturers looking to enhance competitiveness and secure market share.


What is Anti-Scorching Agent CTP (PVI)?

Chemical Name: N-cyclohexylthiophthalimide (Abbr: CTP or PVI)

CTP (PVI) is a high-efficiency stabilizer developed specifically for the vulcanization process of passenger car tires. Its core mechanism involves precisely inhibiting the “induction period” of the sulfur curing reaction.

By doing so, it prevents the rubber from cross-linking too early (scorching) due to frictional heat or high environmental temperatures during mixing, milling, extruding, or storage. This ensures ample “scorch safety” time for the subsequent vulcanization process to be carried out with precision.

Core Value for Manufacturers

For passenger car tire manufacturers, CTP (PVI) delivers value across three dimensions:

  1. Increased Yield Rates: Significantly reduces scrap material caused by scorching, lowering the loss of raw materials and labor costs.
  2. Optimized Production Efficiency: Adapts to the mass production requirements of multi-specification passenger tires, ensuring a smooth workflow.
  3. Enhanced Quality Stability: Ensures critical performance metrics—such as wear resistance, anti-aging, grip, and elasticity—are met, building a solid foundation for end-user safety.

Key Competitive Advantages of Our CTP (PVI)

Compared to traditional retarders, our CTP (PVI) is tailored for the high standards of passenger vehicle tires, offering irreplaceable advantages:

1. High Precision & Process Adaptability

Passenger tire production involves harsh conditions like high-temperature mixing and complex molding. CTP (PVI) rapidly interacts with accelerators to suppress early vulcanization. Even in mixing environments exceeding 150°C, it maintains stable anti-scorch performance, providing the necessary buffer time for various tire specifications (Summer, Winter, and All-Season tires).

2. Excellent Compatibility

This product offers exceptional compatibility with the main polymers used in passenger tires (Natural Rubber, SBR, NBR) and various additives (vulcanizing agents, accelerators, reinforcing agents). Crucially, it does not negatively impact the finished tire’s tear strength, abrasion index, rolling resistance, or noise reduction capabilities.

3. High Efficiency & Cost-Effectiveness

With high activity, CTP (PVI) requires a low dosage—typically 0.1 to 0.5 phr (parts per hundred rubber). Compared to older inhibitors, dosage can be reduced by over 30%, significantly cutting raw material procurement costs while minimizing waste.

4. Eco-Friendly & Compliant

Our product is free from heavy metals and restricted hazardous volatiles. It complies with EU REACH, US EPA, and other international environmental standards. It helps manufacturers achieve green production goals and avoid compliance risks.

5. Wide Application Scenarios

From standard pneumatic tires to Run-Flat Tires, retreading, and rubber accessories (e.g., valve stems, seals), CTP (PVI) is universally applicable. It remains stable across varying production environments, including high/low temperatures and humidity.


Application Coverage: The Full Production Chain

Our Anti-Scorching Agent CTP (PVI) covers every critical stage of passenger tire manufacturing:

  • Rubber Mixing: Prevents premature scorching caused by mechanical shear heat, ensuring compound uniformity.
  • Tire Molding/Building: Prevents local curing during the shaping process, ensuring precision in the tread, sidewall, and carcass.
  • Compound Storage: Extends the shelf life of mixed rubber and semi-finished components, allowing for flexible production scheduling.
  • Pre-Vulcanization: Provides insurance for precise temperature and time control during the final cure.

Why Choose Our CTP (PVI)?

As a high-tech enterprise dedicated to rubber additives, our CTP (PVI) is trusted by hundreds of tire manufacturers nationwide. Here is why:

  • Purity & Consistency: Produced via autonomous synthesis technology with a purity of ≥99.5%. Every batch undergoes HPLC and Infrared Spectroscopy testing to ensure it meets the rigorous demands of tire manufacturing.
  • Customized Solutions: We analyze your specific tire formula and equipment parameters to recommend the exact dosage and process optimization.
  • Robust Supply Chain: With a modern production base and smart warehousing (5,000+ tons annual capacity), we guarantee continuous supply and fast logistics to prevent production halts.
  • 24/7 Technical Support: Our expert team is available around the clock to solve technical challenges, offering remote or on-site support to maximize your production benefits.

Conclusion: Choose CTP (PVI) to Drive Quality

As the market demands higher safety and comfort from passenger vehicles, quality control in tire production is the ultimate differentiator. Our Anti-Scorching Agent CTP (PVI) offers the precision, compatibility, and cost-efficiency needed to solve scorching issues and elevate product quality.

Is your facility facing scorch challenges? Contact us today for a free sample and a professional, customized solution. Let our CTP (PVI) ensure every tire you produce is safe, durable, and competitive.


Keywords: Passenger Car Tire Anti-scorching Agent, CTP PVI Retarder, Rubber Anti-Scorch Agent, N-cyclohexylthiophthalimide, Tire Vulcanization Additives, Rubber Processing Aids, Passenger Vehicle Tire Production.

Email:info@ctp-pvi-chem.com

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