The PVI rubber chemical (Pre-Vulcanization Inhibitor) plays a key role in modern tyre production. PVI prevents premature vulcanization or “scorching” during mixing and processing, so compounders can run longer mixing cycles and use more aggressive accelerator packages without losing control. For product details or to request a datasheet, visit www.arihantreclamationpvtltd.com.
PVI works alongside primary and secondary rubber accelerators to control cure speed and scorch time. When formulators balance PVI with accelerators like MBT or CBS, they can achieve consistent crosslinking and better mechanical properties in finished tyres. This balance is especially important for large tyre presses and high-speed manufacturing lines.
In addition to its processing benefits, PVI is part of the broader set of rubber chemicals that determine final product performance. Proper use of PVI reduces rejects, minimizes odour and discoloration risks, and helps maintain uniform hardness and tensile properties across batches — all of which improve overall plant efficiency and product reliability.
Although PVI is not an antioxidant, it is used in formulations that also include rubber antioxidants such as 6PPD or TMQ. Antioxidants protect the cured tyre from ozone, heat, and oxidative ageing; PVI ensures the compound reaches the correct cure state before those antioxidants act on the finished product. Together, these chemicals extend tyre life and improve safety on the road.
| Application Sector | Why PVI Is Used | Main Benefit | Typical Product Examples |
|---|---|---|---|
| Tyre manufacturing | Prevents scorch during mixing | Uniform cure, fewer rejects | Passenger, truck, OTR tyres |
| Footwear soles | Controls premature cure in complex mixes | Consistent sole hardness | Athletic, safety footwear |
| Industrial belts & hoses | Stabilizes mixes with heavy fillers | Improved tensile and fatigue life | Conveyor belts, hydraulic hoses |
| Moulded rubber parts | Avoids flash and dimensional drift | Better moulding accuracy | Gaskets, seals, mounts |
If you need technical guidance on PVI levels, formulation advice, or bulk supply options, please reach out. For quick contact and orders use the links below:
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Website: www.arihantreclamationpvtltd.com
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Call: +91-8860732624
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Email: arihantreclamation@gmail.com
