Knowde Enhanced TDS
Identification & Functionality
- Base Oil Type
- Product Type
- Technologies
- Product Families
Features & Benefits
- Ready-to-Use Product Features
- Key Attributes
- Optimized miscibility in HFO refrigerant R1234yf.
- Superior lubricity compared to alternative lubricant types, including ‘single end-capped’ PAG products, and di-capped PAGs with lower di-capped material content.
- Exceptional Viscosity Index (VI) – The high VI enhances compressor life by ensuring efficient running at temperature extremes. The high VI may also allow the user to select a lower viscosity fluid than typically used, with associated power usage savings.
- Good high temperature and chemical stability, even in presence of water, resulting in system lifetime extension and reduced maintenance costs.
- Low hygroscopicity (tendency to absorb moisture) compared to alternative PAG products with lower di-capping content and vastly superior to single end capped PAGs
- Formulating expertise – ZEROL HD46 series contain optimized additive technology to provide additional corrosion protection within the a/c system, to further enhance the extreme pressure and antiwear performance of the PAG, and to maximize fluid lifetime by ensuring against thermal or oxidative deterioration of the lubricant.
- Excellent electrical resistivity properties for electrically driven systems.
Applications & Uses
- Markets
- Application Area
- Product Applications
ZEROL HD46 is suitable for use in both belt and electrically driven compressors utilizing R1234yf, and is also fully suitable for use in R134a belt-driven and electric MAC compressors.
Properties
- ISO Viscosity Grade
- Appearance
- Clear to slightly hazy, free of visible particles
- Physical Properties
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Viscosity (at 40°C) | 46.0 | cSt | — |
| Viscosity (at 100°C) | 10.0 | cSt | — |
| Viscosity Index | 215.0 | — | — |
| Flash Point (COC) | min. 230 | °C | ASTM D92 |
| Specific Gravity (at 20°C) | 0.99 | g/cm3 | ASTM D1298 |
| Pour Point | max. -25 | °C | ASTM D97 |
| Value | Units | Test Method / Conditions | |
| Viscosity (at 40°C) | 42.0 - 48.0 | cSt | — |
| Color | max. 1 | Gardner | — |
| Water Content | max. 300 | ppm | — |
| Total Acid Value | max. 0.03 | mgKOH/g | ASTM D664 |
| Pour Point | max. -25 | °C | ASTM D97 |
| Capping Efficiency | min. 85 | % | — |
Regulatory & Compliance
- Certifications & Compliance
Technical Details & Test Data
- Extreme Pressure Performance
The table below illustrates the results of extreme pressure lubricity tests conducted on ZEROL® HD 46, compared to a commercial standard ISO VG 46 di-capped lubricant, using FALEX test method ASTM D3233.
Falex Failure Load (lb) higher is better Method ASTM D3233 ZEROL HD46 Typical di-capped PAG ISO VG46 (“ND8”) Fe blocks/Fe pins (air atmosphere, 20°C) 1000 750 Fe blocks/Fe pin (R1234yf atmosphere, 20°C) 1000 1000 Al blocks/Fe pin (R1234yf atmosphere, 20°C) 2250 1500 Fe blocks/Fe pin (R1234yf atmosphere, 160°C) 1000 500 Al blocks/Fe pin (R1234yf atmosphere, 160°C) 1500 1250 Falex Block Wear (mg) lower is better Fe blocks/Fe pin (R1234yf atmosphere, 20°C) 800lb load, 20 minutes. 17.5 Failed on Initial Loading Al blocks/Fe pin (R1234yf atmosphere, 20°C) 800lb load, 20 minutes. 6.5 30.5 Competitive Analysis
Method ASTM D3233 ZEROL HD-46 Competitive OE ND-12 Aftermarket Blend 50%/50% HD-46/ND-12 Fe blocks/Fe pin (R1234yf atmosphere, 50°C) 1000 1000 1000 Antiwear Performance
Using the 4-ball wear test (ASTM D4172), the performance of ZEROL® HD46 is compared to a typical commercial di-capped PAG:
4-Ball Test Data (ASTM D4172) ZEROL HD46 Typical di-capped PAG ISO VG46 (“ND8”) 40kg load, 1 hour, wear scar (mm) 0.53 0.92 Sealed Glass Tube data
The chemical, thermal and hydrolytic stability of ZEROL® HD46 has been evaluated using ASHRAE 97 sealed glass tube testing. Testing was conducted under standard conditions of 50/50 wt/wt R1234yf/lubricant with 1000ppm & 30,000ppm water at 175°C, for 14 days, and at 190°C for 24 hours. An absence of corrosive or oxidation products on metal coupons (Cu, Al, Fe), combined with excellent color retention, and low post-test TAN values for the lubricant, confirms highest levels of product stability for ZEROL® HD 46 compared to other commercially available standard grades. Detailed test data is available upon specific request to Shrieve.
Miscibility Curves
Miscibility of ZEROL® HD46 in R1234yf refrigerant has been evaluated in accordance with ASHRAE 86 methodology to measure the Critical Solution Temperature (CST) as it varies with lubricant concentration in the refrigerant. Detailed test data is available upon specific request to Shrieve.
Electrical Properties
ZEROL® HD46 achieves electrical property resistance requirements for hermetic electrically driven compressors. ZEROL HD products have been applied in automotive and industrial air conditioning systems as well as refrigeration systems with electrically driven compressors. The data below demonstrates the viability of the product.
Property OEM Requirement ZEROL® HD46 Standard PAG Standard POE Dielectric Strength
(ASTM D877)35 kV 38 kV 30 kV 42 kV Electrical Resistivity (IEC247) 109 Ohm-cm 1010 Ohm-cm 108 Ohm-cm 1011 Ohm-cm Conclusion
ZEROL® HD46 is an extremely high quality di-capped PAG mobile air conditioning compressor lubricants, based on novel double end-capped PAG performance and developed specifically for use in R1234yf belt-driven and electric MAC compressors. Zerol HD46 may also be used in R134a belt-driven and electric MAC compressors. This technology is available in further ISO viscosity grades as required.