Modern electronic equipment generates significant heat during operation. From high-performance gaming computers and AI servers to industrial automation equipment and power electronics, effective thermal management is essential for reliable performance and long-term equipment operation.
As liquid cooling becomes increasingly important across these industries, choosing the right tubing is a critical part of system design. Tubing must fit the equipment, transport coolant reliably, and withstand the mechanical, thermal, and chemical conditions of the application.
Santoprene™ TPV tubing from SantopSeal Corporation offers a material option worth evaluating for custom liquid-cooling and fluid-handling applications. With standard and custom tubing options, SantopSeal works with customers to explore tubing configurations suited to their dimensional and application requirements.
Whether you are developing a custom PC water-cooling loop, designing a liquid-cooling system for server infrastructure, or sourcing tubing for industrial equipment, selecting the appropriate material and dimensions is essential.
In this guide, we explore Santoprene tubing, its potential role in liquid-cooling systems, the factors engineers should evaluate, and how SantopSeal can help with custom tubing requirements.
What Is Santoprene™ Tubing?
Santoprene™ is a thermoplastic vulcanizate (TPV) material manufactured by Celanese. It combines a vulcanized rubber phase with a thermoplastic phase to provide rubber-like properties alongside the processing advantages of thermoplastics.
Santoprene TPV can be processed using suitable thermoplastic manufacturing methods, including extrusion. This makes it possible to manufacture continuous tubing in specified dimensions and configurations, subject to the selected grade and manufacturing requirements.
Depending on the grade and finished-tube design, relevant properties may include:
- Rubber-like flexibility and elasticity.
- Resistance to repeated flexing in suitable applications.
- Resistance to selected environmental and chemical exposures.
- The ability to manufacture tubing in different dimensions and hardness levels.
- Thermoplastic processing advantages for custom production.
However, not every Santoprene grade has the same properties, and general material characteristics do not automatically establish the suitability of a finished tube for liquid cooling.
The selected grade, tube dimensions, wall thickness, operating temperature, pressure, and coolant chemistry must all be considered.
Custom Santoprene Tubing from SantopSeal Corporation
SantopSeal Corporation offers Santoprene TPV tubing in standard and custom configurations, subject to product and manufacturing requirements.
For equipment manufacturers and engineering teams, custom tubing can help address specific requirements for internal diameter, external diameter, wall thickness, hardness, and installation geometry.
If you are developing a new cooling system or evaluating alternatives to your current tubing, SantopSeal can be a starting point for discussing your application and determining which available options warrant further technical evaluation.
Looking for Santoprene tubing for a custom project? Contact SantopSeal with your tubing dimensions, coolant type, operating conditions, and application requirements to discuss available options.
Why Tubing Selection Matters in Liquid-Cooling Systems
A liquid-cooling system transfers heat away from equipment by circulating coolant through a network of connected components.
Depending on the design, the system may include:
- Cooling blocks or cold plates: Transfer heat from processors, electronic components, or machinery to the coolant.
- Pumps: Circulate coolant through the system.
- Radiators or heat exchangers: Transfer heat away from the circulating fluid.
- Reservoirs: Provide coolant storage and support filling and maintenance in applicable systems.
- Tubing: Connects components and carries coolant between them.
- Fittings and connectors: Provide secure connections between the tubing and system components.
Tubing selection affects more than installation convenience. Unsuitable dimensions, inadequate pressure capability, incompatible materials, or poorly matched fittings can contribute to flow restrictions, leakage, and premature system failure.
For this reason, the best tubing choice is the one that satisfies the requirements of the complete cooling circuit.
Santoprene TPV is one material engineers may evaluate when its mechanical characteristics, processing options, and compatibility with the intended application align with the system requirements.
Santoprene Tubing for Custom PC Water-Cooling Loops
High-performance gaming PCs, workstations, and computing systems can generate substantial heat, particularly when processors and graphics cards operate under demanding workloads.
Custom liquid-cooling loops help transfer this heat to radiators or other heat exchangers. Within these systems, tubing connects components such as cooling blocks, pumps, reservoirs, and radiators.
Because computer cases often have limited space, tubing dimensions and routing flexibility are important considerations.
Flexible Routing and Custom Dimensions
Computer cooling systems can require tubing to navigate around graphics cards, processors, radiators, reservoirs, and other internal components.
The appropriate tubing configuration should accommodate the intended routing without excessive bending, kinking, or restriction of coolant flow.
Santoprene TPV offers rubber-like properties in suitable grades, making it worth evaluating for custom tubing configurations where flexibility and dimensional requirements are important.
The actual performance of the finished tube depends on its material grade, hardness, internal diameter, external diameter, wall thickness, and minimum bend radius.
For manufacturers developing specialized computer-cooling equipment, custom dimensions can help match tubing to the intended layout and connection design.
Durability and Maintenance Considerations
Custom PC cooling systems may require periodic maintenance, coolant replacement, or component upgrades. During these activities, tubing can experience handling and mechanical movement.
A suitable tubing material should maintain its required properties throughout the intended service life.
When evaluating Santoprene tubing for PC cooling, engineers should consider flex-fatigue performance, coolant compatibility, fitting retention, permeability, and long-term dimensional stability.
Important: Santoprene tubing should not be assumed to be a direct replacement for established PC water-cooling tubing without application-specific evaluation. Pressure performance, coolant compatibility, and connection reliability must be confirmed for the actual product.
Custom Tubing for Specialized Computer-Cooling Designs
If standard tubing does not match your equipment layout, a custom manufacturing discussion may help identify alternative dimensions or material options.
SantopSeal can discuss standard and custom Santoprene tubing requirements with customers developing specialized fluid-handling components.
To help assess your project, provide the desired tube dimensions, coolant formulation, operating temperature, working pressure, fitting type, and expected service life.
Santoprene Tubing for Server and Data-Center Liquid Cooling
Data centers support cloud computing, artificial intelligence, enterprise software, storage, and other workloads that require reliable thermal management.
As computing density increases, liquid cooling is used in a growing range of system architectures. These include direct-to-chip cooling, coolant distribution systems, and liquid-to-liquid heat exchangers.
Depending on the architecture, tubing may connect cold plates, manifolds, coolant distribution units, and other fluid-handling components.
However, server cooling places demanding requirements on the materials used in the coolant circuit.
Coolant Distribution and System Compatibility
Tubing used in server cooling must satisfy the system’s requirements for operating pressure, temperature, coolant chemistry, cleanliness, and mechanical durability.
The compatibility of the complete wetted system is important because tubing materials can interact with coolant additives or contribute extractables and other contaminants.
Santoprene TPV may be considered for selected applications if the specific grade and finished tubing meet these requirements.
General-purpose material data alone is not sufficient to establish suitability for direct-to-chip cooling, mission-critical server infrastructure, or other specialized systems.
What Engineers Should Evaluate
Before selecting Santoprene tubing for a server or data-center cooling project, engineering teams should assess:
- Continuous operating temperature and expected temperature excursions.
- Normal working pressure, pressure surges, and pressure cycling.
- Compatibility with the complete coolant formulation.
- Permeability and potential coolant loss.
- Extractables, particulate contamination, and fluid cleanliness where relevant.
- Fitting retention, sealing performance, and connection reliability.
- Aging, expected service life, and maintenance requirements.
- Applicable equipment specifications and qualification requirements.
For critical infrastructure, the finished tubing assembly should be validated under representative operating conditions before deployment.
Working With a Tubing Manufacturer
OEMs and cooling-system developers may need tubing with specific dimensions, mechanical properties, and connection requirements.
SantopSeal provides an opportunity to discuss custom Santoprene tubing configurations and determine whether an available grade and manufacturing approach are appropriate for the intended design.
If you are sourcing tubing for a server-cooling project, share your technical requirements early in the design process. This helps establish whether the available material options warrant further testing and qualification.
Santoprene Tubing for Industrial Cooling Applications
Industrial equipment can require liquid cooling to maintain operating temperatures and support reliable performance.
Applications may include manufacturing machinery, automation equipment, power electronics, industrial control systems, and other equipment that uses liquid-based heat removal.
The tubing requirements vary considerably across these applications. Some systems use water-based coolants, while others require glycol mixtures or specialized fluid formulations.
Manufacturing Equipment and Automation
Industrial machinery may expose tubing to vibration, repeated movement, abrasion, and restricted installation spaces.
A suitable tubing design should accommodate the mechanical demands of the installation while maintaining the required flow and connection integrity.
Santoprene TPV’s rubber-like properties may be useful in applications where flexibility and mechanical durability are relevant selection criteria.
The actual performance must be confirmed for the selected grade, tubing construction, and operating environment.
Coolant Compatibility in Industrial Systems
Industrial coolants may contain water, ethylene glycol, propylene glycol, corrosion inhibitors, or other additives.
Material compatibility depends on the exact chemical formulation, concentration, temperature, exposure time, and tubing grade.
Before choosing Santoprene tubing, engineers should assess potential swelling, softening, dimensional changes, degradation, fluid contamination, and other relevant failure modes.
Where necessary, testing of the complete tubing assembly can help determine whether the proposed material is suitable for the intended service conditions.
Key Benefits to Evaluate When Considering Santoprene Tubing
Santoprene TPV offers several characteristics that may be relevant to engineered tubing applications. Their practical value depends on the specific grade and finished product.
- Rubber-Like Flexibility
Suitable Santoprene grades provide rubber-like mechanical properties that may help accommodate tubing routes and installation constraints.
For liquid-cooling applications, flexibility must be balanced against dimensional stability, kink resistance, fitting retention, and the required bend radius.
- Flex-Fatigue Characteristics
Tubing used in equipment that moves or undergoes frequent maintenance may experience repeated bending.
Santoprene’s mechanical characteristics may make it worth evaluating for applications involving repeated flexing. Actual performance depends on the material grade, tube dimensions, bend radius, temperature, and loading conditions.
Where repeated movement is important, testing should reflect the intended service conditions.
- Chemical and Environmental Resistance
Certain Santoprene grades offer resistance to selected chemicals and environmental exposures.
However, chemical resistance is not universal. Compatibility with water, glycol mixtures, inhibitors, biocides, and other additives must be evaluated for the exact coolant formulation.
Environmental resistance should likewise be assessed against the actual installation conditions.
- Custom Manufacturing Options
Thermoplastic vulcanizates can be processed using suitable thermoplastic methods, including extrusion.
This manufacturing approach can support the production of continuous tubing in specified dimensions and configurations, subject to material and process limitations.
For OEMs and equipment developers, custom tubing can help address dimensional requirements that standard products may not satisfy.
- Application-Specific Design
Different cooling circuits require different combinations of flexibility, pressure capability, temperature performance, chemical compatibility, and durability.
A custom tubing project provides an opportunity to evaluate these requirements together rather than selecting a product based on a single material property.
The objective is to identify a tubing configuration that meets the system’s requirements and can be manufactured consistently.
How to Select the Right Santoprene Tubing
Before placing an order or finalizing a tubing design, engineers should establish the critical requirements of the application.
| Selection factor | What to establish |
| Internal diameter | Required flow area and fitting compatibility |
| External diameter | Connection fit and installation clearance |
| Wall thickness | Dimensional stability and pressure performance |
| Material grade | Relevant mechanical, thermal, and chemical properties |
| Hardness | Required flexibility and resistance to deformation |
| Operating temperature | Continuous temperature and expected excursions |
| Working pressure | Normal pressure, pressure surges, and safety requirements |
| Coolant formulation | Compatibility with the complete fluid mixture |
| Bend radius | Routing constraints and kink prevention |
| Fitting design | Retention, sealing, and connection reliability |
| Cleanliness | Acceptable particulate and extractables levels |
| Service life | Expected operating duration and maintenance intervals |
Coolant Compatibility
Compatibility should be established using the actual coolant rather than water alone as a substitute for the intended formulation.
Testing may include exposure under representative temperatures and durations, dimensional measurements, mechanical-property checks, and fluid-quality assessments where required.
Pressure and Temperature
A material’s general temperature range or mechanical properties do not establish the working-pressure rating of an extruded tube.
The finished tubing configuration must be evaluated for the intended dimensions, temperature, pressure cycling, fitting arrangement, and service life.
Manufacturing Quality and Consistency
Tubing used in engineered systems must meet its dimensional and performance requirements consistently.
For custom production, the specification should identify critical dimensions, applicable tolerances, inspection requirements, and any additional quality controls needed for the application.
Where the cooling system is safety-critical or sensitive to contamination, appropriate qualification and validation procedures should be established before production release.
Santoprene vs. Other Tubing Materials
Santoprene is one of several material options available for fluid-handling applications.
| Material | Potential advantages | Key considerations |
| Santoprene TPV | Rubber-like properties and thermoplastic processing | Verify grade-specific coolant compatibility, pressure performance, and finished-tube suitability |
| Silicone | Flexible tubing options and grades for different temperature requirements | Evaluate permeability, mechanical strength, and fluid compatibility |
| EPDM rubber | Useful for many water-based and glycol-containing systems when the compound is suitable | Verify the specific compound, pressure rating, and manufacturing requirements |
| PVC | Available in flexible formulations and a range of dimensions | Evaluate temperature limits, plasticizer behavior, and coolant compatibility |
| Polyurethane | Can offer abrasion resistance and mechanical strength | Verify temperature performance, chemical resistance, and flexibility |
There is no single tubing material that is best for every cooling circuit. The appropriate choice depends on the system requirements and the documented performance of the actual product.
For this reason, comparing specific tubing products is more useful than relying on general material descriptions alone.
Why Choose Custom Santoprene Tubing From SantopSeal?
For OEMs, engineering teams, and industrial buyers, sourcing tubing is not simply a matter of finding a material with suitable general properties. The tubing must also fit the design, meet manufacturing requirements, and perform under the intended operating conditions.
SantopSeal Corporation offers standard and custom Santoprene TPV tubing options for customers with specific tubing requirements.
Custom manufacturing discussions can help establish the relevant dimensions, material options, and technical requirements for a proposed application.
Tubing Configurations for Your Requirements
If your project requires a particular internal diameter, external diameter, wall thickness, or hardness, sharing those specifications helps determine which options may be available.
Custom dimensions should be evaluated alongside pressure performance, coolant compatibility, fitting design, and the intended service environment.
Support for OEM and Industrial Projects
Equipment manufacturers and system integrators may have requirements that differ from standard off-the-shelf tubing.
Providing clear application information can help SantopSeal assess the manufacturing requirements and determine whether an available Santoprene tubing option merits further technical evaluation.
Start With Your Application Specifications
When contacting SantopSeal, prepare the following information where available:
- Application type: PC cooling, server cooling, or industrial equipment.
- Required tubing dimensions and tolerances.
- Preferred material hardness or grade, if already specified.
- Coolant composition and any additives.
- Operating temperature and working pressure.
- Fitting or connector requirements.
- Estimated annual volume and expected order quantity.
- Testing, documentation, and quality requirements.
You do not need to have every specification finalized before making an inquiry. Preliminary project information can help start the discussion and identify the details needed for technical evaluation.
Frequently Asked Questions About Santoprene Tubing
Can Santoprene tubing be used for PC water cooling?
Yes, provided the selected grade and finished tube are compatible with the coolant and meet the loop’s pressure, temperature, dimensional, and connection requirements. Application-specific validation is necessary before treating it as a suitable replacement for established PC-cooling tubing.
Is Santoprene tubing suitable for server liquid cooling?
It may be considered for selected applications, but suitability must be demonstrated against the server-cooling system’s requirements. Coolant compatibility, cleanliness, permeability, pressure cycling, and fitting reliability are particularly important.
Can Santoprene tubing be custom manufactured?
Santoprene TPV can be processed using suitable extrusion methods. SantopSeal offers standard and custom tubing options subject to available materials, dimensions, and manufacturing capabilities. Contact the company to discuss your specific requirements.
What information is needed to request a quote?
Start with the application, required internal and external diameters, wall thickness, anticipated order quantity, and any known operating conditions. Coolant composition, pressure, temperature, hardness, and fitting requirements will help determine whether a proposed configuration is appropriate.
Is Santoprene better than silicone or EPDM for water cooling?
Not universally. Each material has different characteristics, and the best choice depends on the specific grade, finished-tube construction, coolant, operating conditions, and design requirements. Compare documented product performance rather than material names alone.
Can Santoprene tubing handle glycol-based coolants?
Compatibility depends on the specific Santoprene grade, the glycol type and concentration, additives, temperature, and exposure duration. Confirm compatibility using manufacturer data and, where necessary, testing with the actual coolant formulation.
Request Custom Santoprene Tubing From SantopSeal
Choosing tubing for a liquid-cooling system requires a balance of mechanical performance, chemical compatibility, dimensions, pressure capability, and manufacturing requirements.
Santoprene TPV may be worth evaluating for selected computer-cooling, server-cooling, and industrial fluid-handling applications when its properties align with the requirements of the finished tubing assembly.
SantopSeal Corporation offers standard and custom Santoprene tubing options for customers seeking tubing configurations tailored to their equipment and manufacturing needs. Contact them at info@santopseal.com or call 412-444-1888
Developing a new cooling system or looking for a custom tubing solution? Contact SantopSeal to discuss your application, dimensional requirements, coolant, operating conditions, and production needs. The more information you can provide, the easier it will be to assess available options and determine the appropriate next steps.