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The type of antifreeze you will use in your RV and trailer's pipes is made from food-grade propylene glycol. This is safe for humans to consume and that form of glycol is found in many food products you buy today.
Best Food Grade RV Antifreeze | Bluewater PG. For a 99,7% pure propylene glycol RV antifreeze, Bluewater Chemgroup has a product for you. With no additives, Bluewater PG is used to make lotions, soaps, cosmetics, and household craft items, so it’s as safe as propylene glycol gets.
No—in trace amounts, RV antifreeze (and ONLY RV antifreeze, which is bright pink) won't harm you. RV antifreeze receives the label of "GRAS" (Generally Regarded As Safe) by The Food and Drug Administration and is generally considered safe for potable water systems due to its extremely low toxicity.
A bonus with this particular antifreeze for me is the addition of a multi-metal food-grade inhibitor, that helps avoid any corrosion developing through my RV plumbing. It’s, therefore, suitable to be used with a wide range of materials such as copper, brass, steel cast-iron, and even cast aluminum.
The type of antifreeze used in RV and marine applications (Propylene Glycol) is food grade antifreeze and it is non-toxic to humans and pets. Caution: Although propylene glycol antifreeze is non-toxic food-grade antifreeze, it can still be harmful to pets if ingested in sufficient quantities.
Here’s a chart showing some brands of RV antifreeze, and what their “active ingredients” are. Click to enlarge. What do we use? Ha! We don’t worry about taste or plumbing deterioration problems. When we winterize, we use air pressure to blast water out of our pipes. What little antifreeze we use goes down the plumbing drain P-traps.
RV antifreeze is specifically formulated to protect RV plumbing systems during winter storage. It is non-toxic and safe for use in potable water systems, as it is designed to be flushed out before the RV is used again.
RV antifreeze is non-toxic and meant for pumping into the plumbing system. Automotive antifreeze is a whole different critter. Many types are toxic, and should only be put into an engine cooling system.
7) Froggys Fog Propylene Glycol – Food Grade USP – 1 Quart. The best RV antifreeze by Froggys has more other applications to perform, but here we describe it only for winterizing the RV. Also, it is best for plumbing the RV. The food-grade propylene glycol technology makes it more demanding because it is safe for skin and health also.
RV antifreeze is a freeze-burst-protection lubricant that shields the pipes and waterlines of your motorhome from freezing in even the most severe winter weather. And since the RV plumbing system is vulnerable to freezing, all poorly insulated or exposed pipes are in big trouble.