Description
Sulfurized isobutylene is an additive used in gear oils to improve gear oil performance and durability. It is a sulfur-containing compound derived from isobutylene, a common hydrocarbon.
Sulfurized isobutylene is used as an extreme pressure (EP) additive in gear oils. EP additives are designed to reduce friction and wear under high load and extreme pressure conditions. Gear systems, such as those in automotive transmissions, industrial gearboxes and hydraulic systems, often operate under demanding conditions including heavy loads, high temperatures and sliding contact between gear teeth.
Sulfurized isobutylene additive forms a protective layer on gear tooth surfaces, reducing metal-to-metal contact and minimizing wear. It reacts with the metal surface to form a sacrificial film that can withstand high pressures and prevent direct contact between gear teeth. This helps reduce friction, wear and surface damage, thereby increasing the efficiency and longevity of the gear system.
In addition to its extreme pressure properties, sulfurized isobutylene can provide other benefits to gear oils, such as reducing oxidation and corrosion, improving thermal and oxidative stability, and enhancing the lubricant’s load-carrying capacity. It is often used in combination with other additives such as anti-wear agents, defoamers and viscosity index improvers to provide complete and balanced performance benefits to gear oils.
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Ella Campbell –
The performance of the Sulfurized Isobutylene ep additives in gear oil product exceeded my expectations and was amazing.