In order of volume used, they are: polyalphaolefins (PAOs), organic esters, and polyglycols. For other applications, PAOs safe and non-toxic nature allows it to be used where incidental food contact certification or kosher approval is necessary. PAO-based lubricants offer a significant advantage in oxidative stability. 0000000724 00000 n 142 0 obj <>stream A drop-in replacement for petroleum, it's used in countless applications in many industries. Available on demand until February 16, 2024. The term synthetic hydrocarbon (SHC) is a general term. Chemical Compatibility Guide - Galvanized Steel For UltraTech Spill Containment Products This listing was prepared to provide guidance to the chemical compatibility of UltraTech Spill Containment Products which are manufactured and constructed of galvanized steel. Youre not kidding! The chart below shows rotary bomb (ASTM D2272) results between Synfluid PAOs and some mineral oils. Since then, the company has expanded PAO as well as ethylene production, both basic building blocks for many petrochemical processes. Of course, and your options are growing! The rotary bomb bench test is a strong predictor of how base oils will perform in many automotive and industrial applications. polyalphaolefin compatibility chart Posted by . Engine oil tests such as VW T-4 and Seq. This resistance to fire and flame propagation improves the margin of safety in the event of a hydraulic leak. Why does this happen? The chart below shows specific properties of four of our PAO grades that are well-suited to metalworking applications. Chemical Compatibility Guide No matter what the combination of additive or base oil, one thing is certain: When you begin with a higher-quality base oil, you will achieve a better formulation in the end. Working in conjunction with the Union Carbide Chemicals, Plastics Company Inc., and the Mellon Institute of Industrial Research, the USNRL developed the first water-glycol, PAG-thickened, fire-resistant hydraulic fluid (WGHF). H}vUwUw^MwS`y{vV|&s@@9H"61O}/oi~3}\y{)2| U:iY?_/}|(P^@m`kbu_?>sG-rj?~-r[?wp_2W,)!BkBkB*.]Y""ZBmSB&,zB}B+!B]}u}>gSSS <> To improve fuel economy, OEMs are moving toward lower-viscosity oils, even in heavy-duty diesel engines. Adobe PDF Library 10.0.1 0000002388 00000 n They have different characteristics, meaning that one may be superior to the other under certain circumstances. Our team of experts answer the most frequently asked questions. D = Severe Effect, not recommended for ANY use. This Chemical Compatibility Guide is offered for informational purposes only and was developed from information sources other than SpillTech. 0000001726 00000 n PAG- and PAO-based lubricants are used in multiple industries and, as synthetics, offer improved performance over mineral oils. The table below shows how our new Synfluid mPAOs offer significant advantages in pour point and viscosity index over conventional high-viscosity PAOs. Furthermore, these new formulations allow a range of ISO viscosity grades. Synfluid PAO improves finished lubricant performance when formulated into biodegradable and biobased lubricants in low-temperature viscometrics and oxidative stability. They may also be used in applications and areas that may result in incidental food contact or on equipment where there is a potential exposure of the lubricated part to food, such as on food processing equipment as a protective anti-rust film. uuid:df0b74fe-2082-ca4e-860d-fb6b88ddfe4d Synfluid PAOs have been carefully designed to yield oxidative induction times greater than 2,500 minutes with 0.5 percent antioxidant. Not a subscriber or a registered user yet? As the viscosity grade decreases, the volatility and high-temperature/high-shear viscosity will be limiting factors. This lowers their volatility, creates less hydrocarbon tailpipe emissions and raises the flash point. The VI of Synfluid mPAO 40 and 100 cSt is 170 and 194, respectively. When PAO 5 and PAO 7 are compared to equiviscous blends of other PAOs, the volatility advantage can be seen more clearly. As temperature decreases, a higher VI fluid will have reduced viscous drag, which could lead to higher horsepower and energy efficiency. Low molecular weight compounds will degrade other performance requirements, such as volatility, flash and fire points. default Since PAO fluids are synthetic hydrocarbons, they are compatible with and often combined with mineral-based oils. Each 10C temperature rise can reduce oxidative stability by half. Furthermore, the process is a simpler, more energy-efficient route for grease production. Ethylene glycol dimethacrylate is the enoate ester that is the 1,2-bis (methacryloyl) derivative of ethylene glycol. Using PAOs with biobased oils can provide both high performance and biodegradability. <> 0000004340 00000 n With todays oils requiring a higher-quality lubricant basestock to meet more stringent tests, polyalphaolefins are perfectly tailored and consistently manufactured to meet the challenge. A relatively simple test, the criteria of the test varies depending on which grease manufacturer you are dealing with. Specifically, soybean-derived oils or other bio-derived oils alone would not meet some oxidative stability and low-temperature performance requirements. Lack of mineral oil solubility is a barrier to expanded use of PAG-based lubricants. endstream endobj 5 0 obj <>>> endobj 6 0 obj <>>>/Rotate 0/Type/Page>> endobj 7 0 obj <>stream When you add up the benefits, you may see that one plus one can make more than two. PAOs offer exceptionally low volatility due to their controlled formation, which yields carefully designed molecular weights. Polyalphaolefin (PAO) is manufactured through a synthetic chemical process that originates from ethylene. Polyalphaolefin (PAO) fluids are the most common major synthetic base oil used in industrial and automotive lubricants. JFIF Adobe d ##''$ %'% $('++++'()02520)7;;;;7;;;;;;;;;;;;;;; ""2(! Process Chemical Compatibility Guide Chevron Phillips Chemicals PAO history dates back to December 1980, when the continuous PAO unit at Cedar Bayou, Texas, started up with heritage Gulf Oil, which Chevron Chemical subsequently acquired in 1985. As the chart above shows, lower-viscosity oils can be made without sacrificing low volatility by using PAO base oils. There are several systems where we have observed a reduction in the operating temperature compared to mineral oils, including transmissions, engines and heat transfer applications. <>/ExtGState<>/Font<>/ProcSet[/PDF/Text]/XObject<>>>/Rotate 0/Thumb 161 0 R/TrimBox[0.0 0.0 792.0 612.0]/Type/Page>> The magnitude of these benefits will depend on the particular formulation. They are usually derived from a small set of simple olefins ( alkenes ). In addition to these advantages, kosher certification for Synfluid PAOs is available upon request. Process Chemical Compatibility Guide Polyalphaolefin Characteristics For example, one would not be able to make an 0W-20 oil with a C12-derived PAO as the viscosities are too high. PAOs are Newtonian fluids; in other words, their viscosities are fairly independent of shear rate. Since they are fully synthetic, Synfluid PAOs are extremely pure and provide inherent benefits in oxidative stability and viscosity performance at temperature extremes. PAO basestocks were developed in the 1930s and used commercially as a base for engine oils starting in the 1970s. We were the first to offer these materials to the marketplace, and many years of experience with 1-dodecene-based PAOs has helped us to refine the process and deliver very high-quality products. One way to achieve a higher VI base fluid is to shift from a decene-based PAO to a dodecene-based PAO. PAO-based lubricants generally resist creep and water washout and offer good lubricity across a variety of substrate material pairings, including metal-to-metal and metal-to-plastic. The chart below shows the effect of two different shear rate viscosity determinations on three different fluids (4 cSt at 100C) and the dramatic differences between them. One example is the advantage PAO has over mineral oil in the area of high-temperature stability. 0000014966 00000 n Therefore, they are commonly blended or combined with organic ester synthetic base oils to provide a blended base oil that does not have these negative characteristics. %PDF-1.4 % Polypropylene Satisfactory to 72 F. C Moderate effectFair D Severe effectNot recommended FOOTNOTES 1. %PDF-1.5 % Absolutely! 0000034554 00000 n endobj 175 0 obj They are also employed as base fluids in some wide temperature range greases. Some specifications have a low-temperature MRV requirement. endobj startxref endstream endobj 8 0 obj <>stream 91 0 obj www.topworx.com Epoxy Polycarbonate PBT Brass 316 S.S. 304 S.S. 400 S.S. Aluminum Viton Buna N Neoprene EPDM Silicone Ammonium Phosphate, Monobasic A C B B B A A A A A Ammonium Phosphate, Tribasic A B B B B A A A A A Ammonium Sulfate A B B B A A A A A A Ammonium Thiosulfate A A A Amyl Acetate A A A A B A D D . Cant find what youre looking for? The higher the coefficient, the greater the change in viscosity at elevated pressures. Low-viscosity Synfluid PAOs are both NSF H1 and HX-1 registered. The viscosity at an extreme pressure (hp) changes exponentially with pressure (P) as described in the following formula: a is the pressure coefficient for a base oil. 93 0 obj Low-temperature fluidity and high-temperature thermal and oxidative stability are key factors for choosing a PAO. Both the foam tendency (the initial amount of foam generated in this test) and the time required for the foam to collapse are remarkably better for Synfluid mPAO. To correctly identify what type of fluid is needed, the end-user must know the minimum lubricant requirements for that piece of equipment. Recent advancements in additive technology and synthetic base fluid manufacturing are pushing the performance edges that make current lubricant offerings better than ever. Oxidative and other lubricant degradation mechanisms would follow the same trend. The direct feedstock (normal alpha olefin NAO) is produced through the chain growth and displacement process for producing petrochemically pure alpha olefins. Volatility is a concern for many applications, especially where higher operating temperatures occur or longer service life is desired. PAG-based lubricants are polar (water-soluble PAG > water-insoluble PAG > oil-soluble PAG), where PAO-based lubricants are essentially non-polar. Copyright 2023 Chevron Phillips Chemical Company LLC. 0000000891 00000 n Applications for PAO-based lubricants expanded to circulating and gear oils. Use of PAG-based fluids and lubricants began to extend to other applications, first to quenchants and textile lubricants, then to many other lubricant categories, including anhydrous fire-resistant fluids, gear, compressor, and turbine fluids. There are indeed pressures in the industry that require improved oxidative stability. Whichever low-viscosity base oil is used, it must exhibit viscosity stability and low volatility. The degree of the advantage may depend on the specific PAG basestock type used (such as water-soluble, oil-soluble, etc.). As the chart above clearly demonstrates, the difference in viscosity as a function of shear rate is magnified as temperature decreases. Polyglycols-40 to 125 C Not Available - Chemical compatibility information is not available at this time. The reason a PAO is selected as a lubricant basestock is its ability to improve performance and solve problems. The 2002 U.S. Farm Bill Act mandates government agencies to purchase environmentally safe, biobased (vegetable oil) lubricants. For instance, excellent water separation improves compressor operability by reducing the chance of emulsion formation. 184 0 obj 0000036809 00000 n Its great to have the opportunity to talk about both. 56 0 obj<>stream Synthetic basestocks, more so than in mineral oil basestocks, are the primary contributor to most of the basic properties of the lubricant, including oil or water solubility, low-temperature fluidity, lubrication, volatility, ignitability, and seal and paint compatibility. California Transparency in Supply Chains Act Disclosure. PAO-based greases are typically used at temperatures over 100C because of thermal and oxidative concerns. For instance, a 100 percent aminic antioxidant package will yield the best performance in the Rbot test for PAO. Give us a call. polyalphaolefin compatibility chart. endobj PAG-based lubricants provide many property and performance advantages over mineral oil-based and other synthetic lubricants, as outlined in Table 2. For white oil applications, this high saturation level would give a greater degree of chemical inertness. PAO- and PAG-based lubricants are both hydrolytically stable and have low pour points. Give us a call, and well be glad to discuss your applications and provide technical help. 0000010623 00000 n What is most interesting, however, is the low-temperature performance: The C10-based PAO 6 has the lowest pour point by over 20C, but the CCS viscosity for the C12-based PAO 5 and 7 blend is better. Therefore, at high temperatures, it is advantageous to utilize a more stable base oil, specifically Synfluid PAO. Changes in low-temperature viscometrics and oxidative stability requirements demand higher-quality base oils. Give us a call to discuss how Synfluid PAOs can withstand the pressure in your hydraulic applications. High energy costs have hit both businesses and consumers hard, and the pressure is on to conserve. Business never stands still, but you can always count on dependable Chevron Phillips Chemical Synfluid PAOs. 2 shows the flow chart for producing Cu nanolubricants. The remaining synthetic lubricants are produced from other basestocks, including phosphate esters, polybutenes, silicones, perfluoroalkyl, and polyphenyl ethers. Leaking fluids from equipment used in sensitive geographical areas can have long-term negative consequences on the environment. In terms of viscosity, there are tradeoffs in choosing one PAO over another: energy consumption (heat dissipation and production throughput) versus safety of operations (impacted by flash/fire points and volatility). Polyalphaolefins also have poor fire resistance and biodegradability. The table below shows a comparison of conventional hydraulic oils with the new PAO biobased lubricant from RLI. The properties, advantages, and disadvantages reviewed provide some of the main reasons why. startxref Effect of Base Oil Type on Gear Box Temperatures. trailer PAO-based rotary screw compressor oil offers better performance in the compressor. We have found that Synfluid metallocene polyalphaolefins (mPAOs) not only have low foaming characteristics, but they also exhibit rapid air release when compared to traditional high-viscosity PAOs. The information from such third party sources is believed to be reliable and accurate; however, Purchaser should make its own determination of compatibility before using any SpillTech product.