EZgrea DPU Series Pre-formed Polyurea Thickeners
Description

EZgrea Polyurea thickeners(DPU series) are manufactured as per our proprietary formula, specialized process and facility. This products are not categorized as regulated chemical, featured as an environment-friendly and safe product,easy to use, transport and store. The products dramatically lower the threshold and manufacturing cost of polyurea grease. We have developed products series with different formulations and structures to meet your various requirements.Customization is available upon request.

Use instructions

The products are hygroscopic, they are suggested to be sealed while storing.The products tend to form lumps after long term storage, but they do not affect application, but the lump should be smashed before use.The products contain some small particulate, which are easy to float, keep the workplace ventilated and pay attention to operators' safety to prevent human inhale and dust-explosion duet to the dust accumulation.For more details, please refer to the SDS.

Direction for use of DPU-AS pre-formed thickener:

Direction for use of DPU-AS pre-formed thickener:

1. Metered oil and DPU-AS are fed into kettle, heating while blending.

2. Blending while holding the temperature at 170°C(degree Celsius) for 3-4 hours.

3. Cooling initiates, add additives, shearing the grease by three roll mill or high pressure homogenizer, high pressure homogenizer pressure is recommended at no less than 40 MPa.

Direction for use of DPU-B pre-formed thickener:

1.Metered oil and DPU-B are fed into kettle, heating while blending.

2.Blending while holding the temperature at 140°C(degree Celsius) for 3-4 hours.

3.Cooling initiates, add additives, shearing the grease by three roll mill or high pressure homogenizer, high pressure homogenizer pressure is recommended at no less than 40 MPa.

Direction for use of DPU-C pre-formed thickener:

1.Metered oil and DPU-C are fed into kettle, heating while blending.

2.Blending while holding the temperature at 160°C(degree Celsius) for 3-4 hours.

3.Cooling initiates, add additives, shearing the grease by three roll mill or high pressure homogenizer, high pressure homogenizer pressure is recommended at no less than 40 MPa.

Specification
Specification of DPU series polyurea thickener
ITEM DPU-AS DPU-B DPU-C DPU-C
Characteristics general-purpose Better mechanical stability High Dropping Point -
Appearance White powder White powder White powder Visual
Odor Non unpleasant smell Non unpleasant amell Non unpleasant amell Olfactory
Granularity(80 sieve mesh pass)% No less than 99 No less than 99 No less than 99 Weighing method
Water, % 0.5 Max 0.5 Max 0.5 Max ASTM D95
Typical data for the production of grease with EZgrea DPU polyurea thickener
Base Oil Type 500N PAO10 500N PAO10 500N PAO10 -
Kinematic viscosity at 40℃,mm²/s 90.64 62.49 90.64 62.49 90.64 62.49 ASTM D445
Kinematic viscosity at 100℃,mm²/s 10.42 10.29 10.42 10.29 10.42 10.29 ASTM D445
Viscosity Index 96 153 96 153 96 153 ASTM D2270
Thickener content, % 10 10 10 10 17 17 Weighing method
Worked cone penetration, 0.1mm 267 295 262 295 273 291 ASTM D217
Dropping point, ℃ 309 307 279 271 325 323 ASTM D566

Corrosion protection,

T2 copper strip, 24h@100℃

Pass Pass Pass Pass Pass Pass ASTM D4048
Oil separation, 24h@100℃, % 0.9 1.3 1.1 1.5 0.6 1.1 ASTM D6184
Recommended dosage
Thickener\Grade 0 1 2 3
DPU-AS,% 3-5 6-8 9-11 12-14
DPU-B,% 3-5 6-8 9-11 12-14
DPU-C,% 10-12 13-15 16-18 19-21
Note

Recommendation above is based on 500N base oil. Thickener structure,viscosity or type of base oil,paocess and additives

orfillers all will impact thickening capability of pre-formed thickener, it is suggested that further adjustment to be made

based on recommended dosage.

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