Direct-to-Chip Cooling for Data Centres

Castrol ON advanced Direct-to-Chip cooling fluids, backed by specialist fluid management and cooling system services from DC Cooling Solutions.

DC Cooling Solutions are official partners and distributors of Castrol ON advanced thermal fluids, helping data centre operators, OEMs, contractors and cooling technology providers optimise the performance, reliability and longevity of Direct-to-Chip cooling systems.

Advanced cooling for high-performance compute

Direct-to-Chip cooling removes heat directly from high-performance CPUs and GPUs by circulating coolant through cold plates mounted to the heat-generating components. As the fluid is integral to the cooling process, its thermal performance, stability, corrosion protection and compatibility with system materials can directly influence long-term cooling performance and reliability.

DC Cooling Solutions provide specialist Direct-to-Chip coolants developed specifically for these demanding applications.

Castrol ON Direct Liquid Cooling PG25

Purpose-developed for Direct-to-Chip cooling

Castrol ON Direct Liquid Cooling PG25 is a ready-to-use propylene glycol-based heat transfer fluid specifically engineered for Direct-to-Chip liquid cooling systems. Designed to deliver reliable heat dissipation under demanding operating conditions, PG25 combines proven heat transfer performance with extended corrosion protection, material compatibility and long-term fluid stability.

Key benefits

Proven heat transfer performance
Extended protection against metal corrosion
Compatibility with wetted materials used within liquid cooling systems
Biostable formulation to prevent bacterial growth during service
Ready-to-use formulation with no on-site dilution required
Developed specifically for Direct-to-Chip cooling applications

OCP Inspired™. NVIDIA Validated.

Castrol ON Direct Liquid Cooling PG25 has achieved OCP Inspired™ recognition from the Open Compute ProjectFoundation.

PG25 has also been validated to meet NVIDIA's requirements for AI factory and data centre infrastructure, following technicalreview covering corrosion resistance, thermal stability, dilution-waterquality, base-fluid purity and compatibility with wetted materials.

These independent industry credentials provide additionalconfidence when specifying cooling fluids for high-performancedata centre and AI infrastructure.

More than a cooling fluid supplier

Selecting the right coolant is only part of maintaining an effective Direct-to-Chip cooling system.

DC Cooling Solutions combine Castrol ON advanced thermal fluidswith specialist expertise in fluid management, hydronics andcooling system optimisation.

Support can include:

Pre-commissioning and commissioning support
Fluid monitoring and management
Coolant sampling and analysis
Filtration and contamination control
Thermodynamic and hydrodynamic optimisation
Performance monitoring
Fluid replacement and system remediation
Ongoing technical support

This integrated approach helps operators maintain coolantcondition, protect cooling infrastructure and optimise systemperformance throughout its operating life.

Direct-to-Chip cooling expertise

DC Cooling Solutions work across the data centre cooling environment, supporting Primary / Facility Loop, Direct-to-Chip and Immersion cooling systems.

This combination of specialist thermal fluids and cooling system expertise enables DCCS to support operators introducing Direct-to-Chip cooling, upgrading existing infrastructure or managing established liquid cooling systems.

From initial fluid selection and commissioning through to monitoring, optimisation and long-term fluid management, the focus remains the same:

Reliable cooling. Efficient operation. Long-term system performance.

Talk to the Direct-to-Chip cooling team

Planning a new Direct-to-Chip deployment or reviewing the performance of an existing cooling system?

Talk to DC Cooling Solutions about Castrol ON Direct Liquid Cooling fluids, specialist fluid management and cooling system support.

UK: 0800 888 6848

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