Sulfurized Isobutylene High-sulfur (GDT321B)

GDT321B is the "twin" product of GDT321C, specifically designed with enhanced extreme pressure performance. It is primarily used for the formulation of greases and related varieties.


Features

-Outstanding AW performance under extreme pressure conditions

-High thermal stability

-Good compatibility with other additives


Packaging and Storage

Packaging:Available in 200-L steel drums, 1000-L IBC containers, or 20,000-L tank containers.

Storage:Store in a dry, well-ventilated warehouse at ambient temperature, protected from light (especially when using transparent or semi-transparent containers).The product may also be stored in large-capacity, dry, clean metal containers with nitrogen blanketing.


Technical Specifications and Test Methods

Item

Typical Value

Test Method

Appearance

Yellow amber

Visual inspection

Oil solubility test

Clear, no sediment

Visual inspection (1)

Water content (mass fraction), %

≤  0.03

GB/T260

Mechanical impurities (mass fraction), %  

≤  0.05

GB/T511

Flash point (COC), °C

≥  100

GB/T3536

Kinematic viscosity (100 °C), mm²/s

≤  4.0

GB/T265

Density (20 °C), kg/m³

1000 ~ 1100

GB/T1884

Volatile sulfur-containing gasᶜ, ppm

≤  10

GB/T17040

Sulfur content (mass fraction), %

≥  46

SH/T0303(2)

Four-ball Test PD,kg

≥  500

GB/T3142(3)

1、 After being thoroughly mixed at room temperature (20℃), the blend of 5% (m/m) 

GDT321 and 95% (m/m) base oil [60% (m/m) HVI150BS + 40% (m/m) HVI500] should 

appear clear and free from sediment upon visual inspection.

2、 The sulfur content in GDT321 can be determined using methods other than SH/T 

17040 as well.

3、 5% (m/m) GDT321 + 95% (m/m) base oil [60% (m/m) HVI150BS + 40% (m/m) HVI500]