![]() ![]() We often post articles and other news on our LinkedIn page, so please go and follow to keep up to date or for any pump queries you may have please contact us. Viscosity Comparison (centipoise 20 degrees C)Ĭentipoise (cP) = Centistokes (cSt) x S.G.Ĭentistoke (cSt) = Centipoise (cP) / S.G. There are ways to calculate (or ascertain from charts) but that is beyond the remit of this paper, so for practical purposes:Īssoma pump can handle is 150 cP (due to torque transmission through the magnets)Ĭrest can handle is 300 cp (under certain circumstances higher values may be tolerated ![]() Anything over 25cP will have a significant effect on the performance of a centrifugal pumps. Viscosity will have significant effects on flow rates and pressure capabilities of centrifugal pumps as well shaft torque and available power, the efficiency will obviously be lower. When shear is applied to non-Newtonian fluids, the viscosity of the fluid changes (e.g. Non-Newtonian fluids are the opposite of Newtonian fluids. ![]() ![]() In simple terms, a Newtonian fluid’s viscosity remains constant, no matter the amount of shear applied for a constant temperature (e.g. Thinner oils are suitable for shocks (up to Medium), and thicker oils. Kinematic viscosity is used to measure Newtonian liquids, dynamic viscosity for non-Newtonian liquids. up to Extra Thick (1.000.000cSt), with numerous stages in between. : Polysiloxanes, di-Me,3-hydroxypropyl group-terminated, propoxylated YDROXYALKYLTERMINATEDPOLY (PROPYLENEOXY. Therefore, we say that steel has a greater density than ice. : Propylene oxide-dimethylsiloxane-propylene oxide block copolymer, hydroxyl terminated, viscosity 200-300 cSt. They may be the same size, but the steel cube weighs more than the ice cube. Think about an 1cm3 ice cube and a 1cm3 cube of steel. The formula for the conversion is:ĭensity is the ratio of the mass (or weight) of the sample divided by the volume of the sample. Density actually provides a way to convert between a kinematic and a dynamic viscosity measurement. Here’s a really nerdy table that uses the much tighter Centistoke (Cst) testing scale, so we can compare brands with accuracy. But, due to the international SAE standard being so loose, one oil company’s 5Wt can be the same viscosity as another’s 7.5Wt. What’s the difference between dynamic and kinematic viscosity?Ī basic difference between the dynamic and kinematic viscosity measurements is density. Top Reely Selection Order easily now: Reely Shock absorber silicone oil Viscosity CST / CPS 300 Viscosity WT 27 60 ml Fast delivery Reasonable prices. Most suspension units use approximately a 5Wt (SAE). The unit of measure of kinematic viscosity is Centistokes (cSt). So kinematic viscosity is the measure of a fluid’s inherent resistance to flow when no external force, except gravity, is acting on it. The other way is to measure the resistive flow of a fluid under the weight of gravity. This is dynamic viscosity and the unit of measure for dynamic viscosity is Centipoise (cP) One way is to measure a fluid’s resistance to flow when an external force is applied. While the cSt measurement should vary very little from one brand to another, the WT value may be further away.When people talk about understanding viscosity, they are talking about one of two things: dynamic (also known as absolute) viscosity or kinematic viscosity. In contrast, oils measured in WT correspond to a weight. For example, water at 20☌ has a viscosity of about 1cSt. The viscosities of oils measured in cSt (centistokes or cP centiPoise) correspond to the universal unit of measurement, measuring the resistance to deformation of a liquid. Some top drivers present their setup sheets with viscosities marked in cSt or in WT and you are lost? We also advise you to always stick with the same brand of oil in your trolley bag, so that you can adjust the settings of your car precisely and efficiently. Today, like all the products we select on our site, we offer you the best possible quality, whether it is the XTR, Kyosho or TLR Team Losi Racingbrands.Įach brand has its specificities. There are many brands of silicone oil on the market today for the shock absorbers or differentials of your on-road or off-road radio-controlled car. ![]()
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