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Guardian Chemicals Inc.
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Guardian Chemicals - Model Inhibited Glycol Series -Inhibited Glycol Heat Transfer Fluids

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Guardian Chemicals offers a range of inhibited glycol heat transfer fluids designed for use in HVAC closed-loop heating and cooling systems and various industrial applications. Their 50% Inhibited Propylene Glycol (PG) and Ethylene Glycol (EG) solutions are pre-diluted to provide optimal system protection and longevity. The fluids are precisely formulated with unique multi-metal corrosion inhibitor blends to passivate surfaces and prevent corrosion, ensuring system stability over time. In particular, the propylene glycol-based fluids are preferred in scenarios where human exposure is possible due to their lower toxicity compared to ethylene glycol. The products are also available in dyed formulations for easy leak detection and product identification, with green for propylene glycol and red for ethylene glycol. Additionally, Guardian Chemicals emphasizes the importance of combining effective inhibitors to sustain fluid and system quality, as inadequately formulated glycol can degrade, causing system corrosion and performance issues.

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Inhibited Glycol Series: Inhibited Glycol Heat Transfer Fluids

Glycol is commonly used in HVAC closed loop heating and cooling systems as well as a number of other industrial processes to provide effective freeze protection and heat transfer properties. Glycol must be properly formulated with an effective combination of inhibitors to ensure adequate fluid and system life. Improperly formulated glycol can quickly degrade leading to serious system corrosion.

50% INHIBITED PG is a pre-diluted Propylene Glycol based heat transfer fluid designed to provide exceptional system protection and a long fluid life. Whereas ethylene glycol is highly toxic and may be fatal if ingested, propylene glycol is considered practically non-toxic and generally regarded as safe. As such, where human exposure may occur, propylene glycol based heat transfer fluids are preferred. This product is is specially formulated with a unique multi-metal corrosion inhibitor blend to passivate system surfaces and prevent corrosion. It is also buffered to prevent pH drop and stabilized to provide long term system protection.

50% INHIBITED PG-G is pre-diluted Propylene Glycol which is specially formulated with a green dye to aid in leak detection and product identification.

50% INHIBITED EG is a pre-diluted Ethylene Glycol based heat transfer fluid designed to provide exceptional system protection and a long fluid life.  This product is specially formulated with a unique multi-metal corrosion inhibitor blend to passivate system surfaces and prevent corrosion. It is also buffered to prevent pH drop and stabilized to provide long term system protection.

50% INHIBITED EG-R is pre-diluted Ethylene Glycol which is specially formulated with a red dye to aid in leak detection and product identification.

THERMOFROST is a 100% Inhibited Propylene Glycol designed to provide exceptional system protection and a long fluid life. Whereas ethylene glycol is highly toxic and may be fatal if ingested, propylene glycol is considered practically non-toxic and generally regarded as safe. As such, where human exposure may occur, propylene glycol based heat transfer fluids are preferred.  This product is specially formulated with a unique multi-metal corrosion inhibitor blend to passivate system surfaces and prevent corrosion. It is also buffered to prevent pH drop and stabilized to provide long term system protection.

THERMOFROST-G is specially formulated with a green dye to aid in leak detection and product identification.

THERMOGUARD is a 100% Inhibited Ethylene Glycol designed to provide exceptional system protection and a long fluid life. This product is specially formulated with a unique multimetal corrosion inhibitor blend to passivate system surfaces and prevent corrosion. It is also buffered to prevent pH drop and stabilized to provide long term system protection.

THERMOGUARD-R is specially formulated with a red dye to aid in leak detection and product identification.

  • Efficient heat transfer properties.
  • Complex multi-metal inhibitor package to passivate system surfaces provide corrosion protection and extend system life.
  • Formulated with a high reserve alkalinity to extend fluid life and prevent pH drop.
  • Disperses solids present in the system to prevent deposition, keeping system surfaces clean.
  • Protects the system from corrosion and reduces your equipment and maintenance costs.
  • Low toxicity Propylene Glycol based blend.
  • Non-flammable, readily biodegradable and non-corrosive.
  • Inhibition levels are easily tested and when necessary can be boosted with Guardian Chemicals AQUATROL series of products.