APOLLO 100% Propylene Glycol – Heat Transfer Fluid

APOLLO 100% Propylene Glycol — Professional-Grade Heat Transfer Fluid

Concentrated propylene glycol heat-transfer fluid engineered for hydronic and HVAC systems. Delivers reliable freeze protection, corrosion control, and optimal thermal performance in boilers, chillers, radiant floors, heat pumps, and geothermal systems.

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Critical: Use at Exactly 35% Concentration

Target Concentration: 35% This is the optimal balance between freeze protection and heat transfer efficiency.

Below 35%: Risk of freezing in cold climates — system damage may occur.

Above 35%: Reduced heat transfer efficiency — system performance is compromised.

Always verify concentration with a propylene glycol refractometer.
Visual inspection is not sufficient. A calibrated propylene glycol refractometer ensures your system is protected and operating at peak efficiency.

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Key Benefits

• 100% concentrated propylene glycol — dilute to exactly 35% for optimal performance
• Freeze protection — guards hydronic and HVAC piping in cold climates when properly diluted
• Superior heat-transfer performance — optimized for boilers, chillers, radiant systems, and heat pumps
• Corrosion & scale protection — safeguards copper, steel, and aluminum system components
• Non-toxic, low-odor formula — safe for residential and commercial applications
• Versatile compatibility — suitable for geothermal, hydronic, and HVAC closed-loop systems

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Mixing & Application Guide

• Mix with clean water to achieve a 35% propylene glycol concentration by volume
• Use a calibrated propylene glycol refractometer to verify concentration before filling the system
• Do not rely on visual inspection or generic antifreeze testers — use a refractometer specifically rated for propylene glycol
• Check concentration annually or after any system top-up or flush
• Suitable for closed-loop systems only — not for potable water lines

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Specifications

• Fluid Type: 100% concentrated propylene glycol heat-transfer fluid
• Recommended System Concentration: 35% glycol / 65% water
• Packaging: 5 Gallons
• Applications: Hydronic heating, boilers, chillers, radiant floors, heat pumps, geothermal systems
• Primary Functions: Freeze protection, heat transfer, corrosion control
• Toxicity: Non-toxic, low-odor

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Compatible Systems

APOLLO Propylene Glycol is compatible with virtually any closed-loop hydronic or HVAC system, including:

• Air-to-water heat pumps
• Geothermal heat pump systems
• Boilers & radiant floor heating
• Chillers & fan coil units
• Solar thermal systems