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 instructionsThe 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. |