So figure if they use 5% of that stuff it's equal to 10% PG. Many glycol vendors will provide glycol that is already pre-mixed. You should not mix propylene glycol and ethylene glycol, because they can sometimes gel up, and subsequently block your cooling system, which will lead to overheating and potentially an expensive fix. Ethylene glycol is extremely toxic and can kill you. Steady-state temperatures of dry ice–ethanol and ethylene glycol mixtures. Step 1 Make a concentrated solution to combat wood rot. It is viscous than water; it is considered as a syrup since it flows very slowly. If glycol must be site mixed, it should only be done with deionized water.” Hogle explained that ethylene and propylene glycol have different fluid, toxicity, and heat transfer characteristics that will actually prevent the system from operating correctly when mixed. Flowcool-Plus & Flowcool FS These are propylene-based glycols; FlowCool FS has been tested by the National Sanitary Foundation. I’ve got about a 50/50 mix in my truck now but friends tell me hat I have doomed my cooling system. However, while ethylene glycol and propylene glycol are both biodegradable, propylene glycol degrades at a slower rate and has a greater biochemical oxygen demand. I checked the anti-freeze freeze protection on the Bobcat and the tester only registers 10 degrees Fahrenheit - not nearly good enough for our area. No, you will not need another heating system. Ethylene glycol and propylene glycol are the major constituents of antifreeze. Kal Row Member Posts: 1,519. But they have completely different structures and attributes. It provides better heat transfer parameters than water, and can be mixed with water to provide a variety of heat transfer characteristics. Ethylene glycol and water can be mixed in any ratio because of their compatibility and makeup. Propylene glycol is an alcohol that absorbs water and mixes completely with many solvents. Since ethylene glycol can cause damage to the heart, nervous system and kidneys through prolonged exposure, you should consider propylene glycol your only option. Checker had Peak AntiFreeze on sale, two 50/50 mix gallons for $10. Antifreeze for Bobcat S300 - Propylene or Ethylene Glycol? Propylene glycol is used in antifreeze because, like ethylene glycol, it lowers the freezing point of water by disrupting the formation of ice crystals. On the other hand, propylene glycol has very low-level toxicity for some skin conditions and is used in many cosmetics. Propylene glycol can also become more viscous than ethylene, even slightly affecting the heat exchange rate when used at very low temperatures. Drain the coolant. Step 1. Joined: Sep 26, 2008 Messages: 393 Location: Canada. Run engine until it gets hot. Water is nature’s heat transfer fluid, a liquid used since the dawn of time to heat and cool. It has something to do with different specific gravity. Ethylene Glycol: Ethylene glycol is mainly used in antifreeze formulations and as a raw material in the manufacturing of polyesters such as polyethylene terephthalate (PET) in plastic industry. just wondering thanks. If so got any picks and do you know how long it mixxed. In one burn victim study, as long as blood concentrations were below 1.3 mg/mL the patients survived. 0. On … 0. Fortunately, there are a number of reliable methods available to evaluate antifreeze quality. Can Prestone Dex-Cool be mixed with your basic NAPA Ethylene Glycol? Glycol is a water-miscible coolant that is frequently used in heat transfer and cooling applications. Propylene glycol has the E-Number E1520. Ethylene glycol can be found in highly concentrated amounts in automotive antifreeze and some windshield de-icing products and in small amounts in household products such as printer ink, interior and exterior paint, spackle, etc. Their molecular formulas are different; thus they have some different physical properties. Yes, Ethylene glycol and Propylene glycol are very similar chemically, therefore, can be mixed without any bad consequences for the engine. Coolant: Ethylene Glycol vs Propylene Glycol In my quest to find maintenance products, I came across something I thought I would question here. What is the likely result of mixing some proportionately small amount of a 50/50 water/sodium hydroxide solution (let's say 10% or less) with a 50/50 water/propylene glycol solution in a closed container with a fair amount of room for expansion (perhaps also with pressure venting)? with water and glycol, you get solution seperation and will still get icy chnks - wont bust your pipes - but the ice chunks can block stuff, not good for a sprinkler . It is primarily used to prevent water from freezing and increase its boiling point for automobiles. Therefore, it can still be harmful to the environment. Has anyone found a sytem with mixxed ethylene and propylene glycol in it. How long does it take and will a flush totally stop its reaction. If 100 per cent glycol is purchased then on-site mixing is required, and this can cause issues if not done properly. Antifreeze can have two active ingredients: either ethylene glycol or propylene glycol. It can even cause the heart to stop. If propylene glycol is on skin, say when giving dermal therapeutics, it can be seen in the blood and in the urine at low levels. Water / glycol can be heated by electricity, wood, pellets, natural gas, propane, fuel oil … Will I need another heating system ? I just came to find that you can't use the same AntiFreeze tester for PROPYLENE glycol based antifreeze (Prestone) as ETHYLENE glycol based antifreeze (PEAK) even though they are both "Green". The table is for ethylene glycol, and I would like to use the less toxic propylene glycol. In general, propylene glycol is not readily absorbed through the skin unless it also is mixed with another acid. I know not to mix it, supposed to crud up or something. Although both propylene glycol and ethylene glycol have a large number of applications across a variety of industries and uses including cosmetics and preservatives (propylene glycol) and within the manufacture of resins, inks and polyethylene terephthalate (ethylene glycol) both have a common use within antifreeze and coolant mixes. Discussion in 'Skid Steers' started by swampdog, Aug 27, 2014. swampdog Senior Member. Ethylene Glycol is used as an anti-freeze, but it has a high toxicity level which may be harmful to your skin. While you might see propylene glycol described as an organic compound, this does not mean it’s naturally occurring. What is antifreeze? FlowCool IG can be used in any application where low toxicity is not a requirement. Ethylene glycol and propylene glycol are organic compounds with alcohol functional groups. The junction of these two determines the percent strength of a known Glycol. Ethylene or propylene glycol, to depress the freeze point of the fluid. If it is well designed a radiant floor system is powerful enough to be your only heating system. When it is mixed with water, it disturbs the formation of ice. Animal studies show that high doses of propylene glycol can cause dangerously low heart rates and blood pressure. Food Industry; Another testament to the non-toxic nature of PG is its use in the food industry where it serves as a humectant, solvent and preservative among other things. Switch off and let it cool down. Ethylene glycol can facilitate convective heat transfer in automobiles and liquid cooled computers. Is the table still valid? Anything toxic? Or perhaps it could be approximately 30% Ethylene Glycol. From the shoutbox: Quote:» Alpha Dream - 10-23-8:04 pm -- Isopropyl myristate is something they add to alcohol to denature it.It's similar but thicker than PG. As blood concentrations were below 1.3 mg/mL the patients survived if so any. 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