TRUEGARD-Propylene Glycol Inhibited-Heat Transfer Fluid 100% Concentrate -275 TOTE

Yes, as a 100% concentrate it must be mixed with water before use. The dilution ratio determines the level of freeze and burst protection you achieve; a higher concentration of glycol provides lower freeze-point protection. The product's operating range spec of -35°F to 250°F reflects typical diluted use conditions, while the body listing notes the fluid can support applications down to -60°F depending on the concentration used.

The pink dye is added specifically to aid leak detection - it makes it easier to spot leaks in pipelines, heat exchangers, and system connections. The dye is part of the formulated package and does not affect the fluid's heat transfer or corrosion inhibition performance.

Yes, propylene glycol is preferred over ethylene glycol in applications where low toxicity is required, including food and beverage processing. The product is listed under food and flavoring applications, but buyers should verify that their specific regulatory requirements (such as NSF HT1 registration) are met before use in incidental food-contact situations, as that certification is not explicitly stated in the product data.

This fluid is designed for closed-loop, water-based systems including HVAC, process heating, and process cooling applications. It contains a package of industrial corrosion inhibitors to help protect system metals across the recommended operating range of -35°F to 250°F.

A mildly alkaline pH of 8.0-9.0 helps the corrosion inhibitors remain active and protects metal surfaces such as steel, copper, aluminum, and cast iron commonly found in heat transfer systems. Monitoring pH over time is a good practice - a significant drop in pH can signal inhibitor depletion and the need for a fluid change or inhibitor top-up.

The product is listed with no flash point, meaning it is not classified as flammable under standard conditions, which simplifies storage and handling compared to solvent-based heat transfer fluids. Always consult the Safety Data Sheet for complete handling, storage, and personal protective equipment guidance.