T321 Sulfurized Isobutylene (Standard Process)

Product Overview

T321 is an advanced sulfur-based additive synthesized through catalytic reactions of sulfur monochloride, isobutylene, and sodium sulfide, followed by reactinons such as addition, sulfurization, and dechlorination. As a key extreme pressure (EP) and antiwear agent, it is widely used in gear oils and industrial lubricants. The product is an orange-amber transparent liquid with superior performance characteristics.

Key Features

• High sulfur content – Delivers outstanding extreme pressure and antiwear protection.
• Light color & excellent solubility – Easily blends with mineral and synthetic base oils.
• Synergistic compatibility – Works effectively with phosphorus- and nitrogen-based antiwear additives.

Applications & Recommended Dosage

T321 is a versatile additive for formulating high-performance lubricants, including:

• Gear oils
• Metalworking fluids
• Lubricating greases
• Antiwear hydraulic oils

Recommended dosage: 1.5~5.0%

Technical Parameter

Note:

1) 5% / (m/m %) T321+95% / (m/m %) Base oi [60% / (m/m) HVI 150BS+40% / (m/m %) HVI 500SN]

After being stirred evenly at room temperature(20℃), it should be transparent and free of precipitation when observed visually.

2) 5% / (m/m %) T321+95% / (m/m %) Base oi [60% / (m/m %) HVI 150BS+40% / (m/m %) HVI 500SN]