ChillerGlycol PG™ Data Center Cooling Fluid

Advanced Propylene Glycol Heat Transfer Fluid for Data Centers, AI Infrastructure & Direct-to-Chip Cooling Systems

Product Overview

ChillerGlycol PG™ is a premium propylene glycol heat transfer fluid engineered for mission-critical cooling applications, including modern data centers, AI computing facilities, high-performance computing (HPC) environments, direct-to-chip cooling systems, and chilled water cooling loops. Formulated with advanced Organic Acid Technology (OAT) inhibitors, ChillerGlycol PG™ delivers reliable freeze protection, corrosion resistance, and long-term thermal stability while helping protect critical cooling infrastructure.

As computing densities continue to increase, data center operators require coolant solutions capable of supporting efficient heat transfer, system reliability, and maximum uptime. ChillerGlycol PG™ is designed to meet these demands while reducing maintenance requirements and protecting valuable cooling assets.

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ChillerGlycol PG™

PG25 coolant designed for data centers

GLYCOL, INC.’S Technical Product Highlights:

Chemistry

Mono Propylene Glycol (MPG)

Organic Acid Technology (OAT) inhibitor package

Enhanced reserve alkalinity

Compliance & Testing

ASTM D1384 Corrosion Tested

Corrosion protection for mixed-metal systems

Suitable for closed-loop cooling applications

Environmental Profile

Contains no:

Phosphates

Nitrites

Silicates

Freeze Protection for Data Center Cooling Applications

ChillerGlycol PG™ is a premium propylene glycol heat transfer fluid engineered for data center cooling systems, direct-to-chip liquid cooling, AI infrastructure, and high-performance computing environments. Available in multiple glycol concentrations, ChillerGlycol PG™ provides dependable freeze protection while maintaining excellent thermal performance and long-term system reliability. Proper freeze protection is critical for safeguarding cooling loops, heat exchangers, coolant distribution units (CDUs), pumps, and piping systems from low-temperature damage. By selecting the appropriate concentration, ChillerGlycol PG™ helps protect valuable cooling infrastructure while supporting continuous operation in mission-critical applications.

Low Vapor Pressure Minimizes Fluid Loss:

ChillerGlycol PG™ is formulated with propylene glycol to provide a lower vapor pressure than water, helping reduce evaporation and fluid loss throughout the cooling system. This characteristic contributes to more stable fluid concentrations, reduced makeup water requirements, and improved long-term system performance.

For data centers, direct-to-chip cooling systems, and liquid cooling infrastructure, low vapor pressure helps maintain consistent coolant properties while supporting reliable thermal management. By reducing evaporative losses, ChillerGlycol PG™ can help minimize maintenance requirements, improve system efficiency, and protect critical cooling assets.

Combined with advanced Organic Acid Technology (OAT) corrosion inhibitors, ChillerGlycol PG™ delivers dependable heat transfer performance, corrosion protection, and long service life for mission-critical cooling applications where uptime and reliability are essential.

Environmentally Responsible Propylene Glycol Technology:

ChillerGlycol PG™ is formulated with high-purity propylene glycol and advanced Organic Acid Technology (OAT) inhibitors to deliver reliable thermal performance while supporting environmentally responsible cooling operations. The propylene glycol base offers a favorable environmental profile and is readily biodegradable, making it an excellent choice for facilities seeking both performance and sustainability. 

Designed for data centers, direct-to-chip liquid cooling systems, and mission-critical infrastructure, ChillerGlycol PG™ combines effective heat transfer with long-term fluid stability and equipment protection. Its advanced formulation helps reduce corrosion, scale formation, and biological fouling, contributing to longer fluid life and reduced maintenance requirements. 

Unlike traditional heat transfer fluids that may require frequent replacement or extensive chemical treatment, ChillerGlycol PG™ is engineered for extended service life and dependable operation. The result is improved system reliability, lower operating costs, and enhanced protection of valuable cooling assets throughout the lifecycle of the system.

For operators of data centers, AI infrastructure, chilled water systems, and liquid cooling networks, ChillerGlycol PG™ provides a balance of thermal performance, asset protection, and environmental responsibility, making it a trusted solution for modern cooling applications.

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Enhanced Equipment Protection:

The advanced properties of ChillerGlycol PG™ help support the long-term reliability of circulating cooling systems used in data centers, liquid cooling networks, and direct-to-chip cooling applications. Its propylene glycol-based formulation provides excellent fluid stability while helping protect critical system components from wear, corrosion, and operational stress. 

ChillerGlycol PG™ helps extend the service life of pumps, seals, valves, heat exchangers, flow meters, and other cooling system components by maintaining proper fluid chemistry and reducing the formation of corrosion and scale deposits. This protection is especially important in mission-critical cooling environments where equipment reliability and uptime are essential. 

Combined with advanced Organic Acid Technology (OAT) inhibitors, ChillerGlycol PG™ delivers dependable heat transfer performance and long-term asset protection, helping reduce maintenance requirements, lower operating costs, and support continuous operation of modern data center cooling infrastructure.

Safe Handling & Operational Reliability:

ChillerGlycol PG™ is a propylene glycol-based heat transfer fluid developed to provide dependable cooling performance while offering a favorable safety profile for commercial, industrial, and data center applications. Its formulation is designed for use in closed-loop cooling systems where long-term reliability, equipment protection, and ease of handling are essential.

The advanced Organic Acid Technology (OAT) inhibitor package helps protect cooling systems from corrosion, scale formation, and biological fouling without the use of phosphates, nitrites, silicates, borates, or amines. This helps maintain fluid quality, support system cleanliness, and reduce maintenance requirements over the life of the fluid. 

ChillerGlycol PG™ is well suited for data center cooling systems, direct-to-chip liquid cooling, chilled water loops, and other mission-critical applications where uptime and equipment protection are priorities. The fluid’s combination of reliable thermal performance and long-term asset protection helps operators maximize system efficiency while protecting valuable cooling infrastructure. 

By delivering freeze protection, corrosion resistance, and thermal stability in a single solution, ChillerGlycol PG™ provides a trusted cooling fluid for modern facilities seeking dependable performance and long service life.

CHILLERGLYCOL™ PG

Simplified Leak Detection & Identification:

ChillerGlycol PG™ is available in a clear formulation and can also be supplied with custom coloring to support system identification and leak detection requirements. Colored glycol solutions can improve visibility during maintenance, commissioning, and routine inspections, helping operators quickly identify fluid presence within piping, tanks, and cooling equipment.

For data centers, direct-to-chip cooling systems, coolant distribution units (CDUs), and chilled water loops, visual fluid identification can simplify maintenance procedures and support efficient system operation. Custom color options can also be used to distinguish between separate cooling loops or facility systems.

In addition to enhanced visibility, ChillerGlycol PG™ delivers reliable freeze protection, excellent heat transfer performance, and long-term corrosion protection through its advanced Organic Acid Technology (OAT) inhibitor package. The result is a dependable cooling fluid designed to protect critical infrastructure while supporting maximum uptime in mission-critical environments.

Wide Operating Temperature Range:

ChillerGlycol PG™ is engineered to deliver reliable thermal performance across a broad range of operating conditions commonly found in data centers, liquid cooling systems, chilled water loops, and industrial heat transfer applications. Its propylene glycol-based formulation provides dependable freeze protection at lower temperatures while maintaining stable heat transfer performance during normal system operation. 

Available in multiple concentrations, ChillerGlycol PG™ allows operators to match freeze protection levels to specific environmental and system requirements. This flexibility makes it suitable for both indoor and outdoor cooling infrastructure, including direct-to-chip cooling systems, coolant distribution units (CDUs), heat exchangers, and secondary cooling loops. 

Combined with advanced Organic Acid Technology (OAT) inhibitors, ChillerGlycol PG™ helps protect cooling systems from corrosion, scale formation, and biological fouling while supporting long fluid life and reduced maintenance requirements. The result is a dependable heat transfer fluid designed to maximize uptime and protect critical cooling assets in mission-critical environments.

COST IMPACT:

ChillerGlycol PG™ is engineered to help reduce the total cost of ownership for data center cooling systems, direct-to-chip liquid cooling infrastructure, and mission-critical thermal management applications. Its advanced propylene glycol formulation and Organic Acid Technology (OAT) inhibitors help minimize corrosion, scale formation, and biological fouling, reducing maintenance requirements and extending equipment life.

By helping protect pumps, heat exchangers, piping, coolant distribution units (CDUs), and other critical cooling components, ChillerGlycol PG™ supports long-term system reliability and helps lower the risk of unexpected downtime. This can result in reduced maintenance costs, fewer service interruptions, and improved operational efficiency throughout the lifecycle of the cooling system. 

Available in custom concentrations to meet specific freeze protection and performance requirements, ChillerGlycol PG™ provides a flexible solution for both new installations and retrofit projects. Its combination of dependable heat transfer, corrosion protection, and long fluid life helps operators maximize cooling system performance while controlling operating expenses. 

For data centers, AI infrastructure, and high-performance computing facilities where uptime is critical, ChillerGlycol PG™ delivers lasting value through improved asset protection, reduced maintenance, and reliable thermal performance.

APPLICATION VERSATILITY:

Why Data Centers Choose ChillerGlycol PG™

Data center cooling infrastructure requires coolant solutions that deliver dependable thermal performance while protecting equipment from corrosion, scaling, and degradation. ChillerGlycol PG™ combines proven propylene glycol chemistry with advanced inhibitor technology to support efficient operation of chilled water systems, liquid cooling networks, and direct-to-chip cooling environments. For operators focused on uptime, energy efficiency, and long-term reliability, ChillerGlycol PG™ provides dependable protection for today’s high-density computing facilities.

Designed for Direct-to-Chip Cooling

Modern AI servers and GPU clusters generate significantly higher heat loads than traditional IT equipment. ChillerGlycol PG™ helps support efficient thermal management by providing:

Data Center Cooling Applications

ChillerGlycol PG™ is ideally suited for:

Data Centers

Enterprise data centers

Colocation facilities

Hyperscale data centers

Edge computing facilities

AI and machine learning infrastructure

Liquid Cooling Systems

Direct-to-chip cooling systems

Cold plate cooling loops

Rear door heat exchangers

Secondary cooling loops

CDU (Coolant Distribution Unit) systems

Mechanical Cooling Systems

Chilled water systems

CRAH units

Central plant cooling systems

District cooling systems

Thermal energy storage applications

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