Paint chemicals

This product is a transparent oily liquid with good performance of extreme pressure antiwear, flame retardant and mold resistance, low volatility and good electrical performance. It is suitable for gear oil and anti-wear hydraulic oil, and is also one of the components of anti-flame hydraulic oil.

T306 (Lubricant Additive): Technical Overview

Category	Specifications
Product Name	T306 (Typical: Sulfurized Isobutylene)
CAS No.	68956-79-6 (varies by exact composition)
Appearance	Amber to dark brown viscous liquid
Density (20°C)	0.92-1.05 g/cm³
Viscosity (100°C)	10-50 mm²/s
Sulfur Content	40-50 wt%
Flash Point	≥150°C (COC)

Key Properties

Property	Performance Data
Extreme Pressure (EP)	High load-carrying capacity (≥4000 N, Four-Ball Test)
Anti-Wear	Reduces wear scars by 30-50% (ASTM D4172)
Thermal Stability	Stable up to 200°C
Corrosion Inhibition	Passes ASTM D130 (Copper Strip, 3h/100°C)
Compatibility	Soluble in mineral/synthetic oils

Applications

Industry	Primary Uses
Gear Oils	Automotive/industrial gear lubrication
Metalworking Fluids	Cutting/forming operations
Greases	EP/AW additive
Industrial Lubricants	Heavy machinery

Usage Guidelines

Parameter	Recommendation
Typical Dosage	0.5-3.0 wt% in formulations
Synergists	Often blended with ZDDP or MoDTC
Storage	Keep sealed, avoid moisture
Shelf Life	24 months (25°C)

Safety & Compliance

Aspect	Details
GHS Classification	H315. H319. H335
PPE	Gloves, goggles, ventilation
Regulatory	REACH compliant
Biodegradability	<20% (28 days)

Comparison with Alternatives

Feature	T306	Chlorinated Paraffins	ZDDP
EP Performance	★★★★	★★★	★★☆
Thermal Stability	★★★★	★★☆	★★★★
Environmental Impact	★★★	★☆ (Restricted)	★★☆
Cost Efficiency	★★★★	★★★★	★★★

References:

Lubricant Additives: Chemistry and Applications (3rd Ed.) – Leslie R. Rudnick

ASTM D2783 – Standard Test Method for Extreme Pressure Properties