Industrial Hose Materials Explained: TPU vs. PVC vs. PTFE, Rubber & More
Quick answer
Industrial hose material selection is a system-engineering problem. The right question is not simply “Which polymer should I use?” It is “What material and hose construction will survive the actual pressure, temperature, chemicals, movement and environment?”
TPU, PVC, PTFE, rubber, silicone, nylon/PA, UHMWPE and fluoropolymers can all be correct choices in the right hose design. Finished-hose performance depends on the complete system: inner tube, reinforcement, outer cover, diameter, wall thickness, temperature, fittings, manufacturing quality and validation testing.
Industrial Hose Construction: More Than Just the Polymer
An industrial hose is normally a layered product, not a simple plastic tube. The polymer matters, but it is only one part of the design.
Inner tube
The inner tube contacts the transported medium. It must be compatible with air, water, oil, fuel, powder, slurry, gas, food ingredients, chemical solutions or other media in the application. Its smoothness, flexibility, extraction profile and resistance to swelling or hydrolysis can determine whether the hose survives real service.
Reinforcement
Reinforcement provides much of the structural pressure capability. Common options include polyester, nylon, aramid, steel wire and textile braid. The reinforcement material, braid angle, number of layers, adhesion and consistency often dominate the pressure rating of the finished hose.
Outer cover
The outer cover protects the hose against abrasion, dragging, weather, UV, chemicals, oil splash and mechanical damage. For moving equipment, robotics or factory automation, the cover also contributes to flex life and kink resistance.
Helix construction for suction hoses
Suction and vacuum hoses may include a wire helix or rigid polymer helix. The purpose is not mainly burst strength; it is collapse resistance when the inside of the hose is below atmospheric pressure.
A simple unreinforced TPU tube and an aramid-reinforced TPU pressure hose can use similar base polymers but have completely different pressure ratings.
Material Comparison: TPU vs. PVC vs. PTFE, Rubber and More
| Material | Abrasion Resistance | Flexibility | Chemical Resistance | Temperature Capability | Pressure Potential* | Relative Cost |
|---|---|---|---|---|---|---|
| TPU / Polyurethane | Excellent | Excellent | Good, grade-dependent | Medium–High | High with reinforcement | Medium |
| PVC | Fair–Good | Good | Good | Low–Medium | Medium | Low |
| PTFE | Fair mechanically | Moderate | Excellent | Excellent | High with reinforcement | High |
| Rubber | Good–Excellent | Excellent | Compound-dependent | Medium–High | High | Medium |
| Silicone | Relatively low | Excellent | Good for selected media | Excellent | Low–Medium unless reinforced | High |
| Nylon / PA | Good | Moderate | Very good | Medium–High | High | Medium |
| UHMWPE | Excellent | Moderate | Excellent | Medium | Construction-dependent | Medium–High |
*Pressure capability cannot be determined from polymer type alone.
TPU / Polyurethane Hoses
In hose applications, hose-grade polyurethane commonly means thermoplastic polyurethane, or TPU. TPU is attractive where a hose needs abrasion resistance, elasticity, flexible extrusion, kink resistance, tear resistance, mechanical durability, repeated flexing, low weight and thermoplastic processability.
Typical TPU hose and tubing applications include pneumatic tubing, automation hose, robotic hose, conveying hose, material-handling hose, industrial vacuum hose, spiral suction hose, layflat hose and reinforced pressure hose.
TPU is not one material. A hose manufacturer must still choose hardness, chemistry, melt viscosity, extrusion stability, color, transparency, hydrolysis resistance, oil resistance, flame-retardant requirements, adhesion behavior and long-term aging performance.
Polyester TPU vs. polyether TPU
| Property | Polyester TPU | Polyether TPU |
|---|---|---|
| Abrasion resistance | Excellent | Excellent |
| Mechanical strength | Generally excellent | Excellent |
| Oil resistance | Often very good | Grade-dependent |
| Hydrolysis resistance | Lower unless stabilized | Excellent |
| Microbial resistance | Lower | Excellent |
| Low-temperature flexibility | Good | Often excellent |
| Water/humidity exposure | Requires careful grade selection | Generally preferred |
This chemistry decision is highly relevant to hose manufacturers. Dry factory pneumatic tubing, oil-related lines and abrasive service may point in one direction; humid environments, water exposure, microbial risk or long outdoor storage may point in another. Final selection should be validated against the actual medium and service conditions.
PVC Hoses
PVC is widely used because it is economical, transparent, easy to process and practical for many water, general industrial, pneumatic, agricultural and suction-hose applications. It should not be treated as a bad material simply because higher-performance polymers exist.
In many applications, PVC wins on initial cost and acceptable performance. TPU typically becomes more attractive when the hose experiences abrasion, dragging, flexing, repeated bending, impact, low-temperature movement or kinking. The correct choice depends on the total cost of ownership, required life and risk of downtime.
PTFE / Teflon™ Hoses
PTFE stands for polytetrafluoroethylene. Teflon™ is a trademark/brand name; PTFE is the polymer. PTFE is selected for excellent chemical resistance, high-temperature capability, low friction, cleanliness and aggressive chemical transport.
PTFE hoses may be smooth-bore or convoluted. They are often combined with stainless-steel braid or textile reinforcement when pressure capability, mechanical protection or movement is required. However, PTFE’s strong chemical performance does not mean unreinforced PTFE tubing automatically has a high working-pressure rating. The finished hose construction still controls the usable pressure rating.
Rubber Hoses
“Rubber hose” includes many compounds, including EPDM, NBR/nitrile, natural rubber, SBR and CR/neoprene. Rubber remains important because it can deliver excellent flexibility, resilience and proven service in hydraulic, fuel, water, air, steam, automotive and industrial applications.
One key manufacturing difference is vulcanization or curing. Rubber hoses are normally thermoset systems, while TPU, PVC and nylon hoses are commonly thermoplastic systems. This affects processing, recycling options, joining methods, compound design and production economics.
Silicone Hoses
Silicone is valued for temperature resistance, cleanliness, flexibility and use in selected food, laboratory, pharmaceutical and medical applications. It can be useful where softness and thermal stability are more important than abrasion. A common limitation is relatively weaker abrasion and cut resistance compared with TPU, so silicone is not normally the first choice for dragging, abrasive conveying or harsh mechanical service unless the construction is specifically designed for that use.
Nylon / PA Hoses and Tubing
Nylon or polyamide tubing is common in pneumatic systems, automotive lines and industrial fluid lines. It offers good pressure capability, dimensional stability and the possibility of thinner-wall designs. Compared with TPU, nylon is generally stiffer, less rubber-like and may require a larger bend radius. It can be a strong fit when dimensional precision and pressure capability matter more than soft flexibility.
UHMWPE, PE, PFA and FEP Specialty Hoses
UHMWPE is used where abrasion resistance, low friction and chemical resistance are important. It may be considered for abrasive powders, pellets, slurry or chemical-transfer liners depending on the hose construction.
PFA and FEP are fluoropolymers used for aggressive chemicals, high purity, semiconductor, pharmaceutical and higher-temperature fluid systems. Like PTFE, they solve different problems from TPU or PVC and usually require careful attention to construction, fittings, purity requirements and cost.
Understanding Hose Pressure Ratings
Pressure language is often misunderstood. In hose specification, the key is not a marketing phrase about preventing failure, but a clear engineering definition of how much pressure the finished hose can safely handle, how it is tested, and how much margin exists before rupture. The important concepts are maximum working pressure, proof pressure, minimum burst pressure, design factor, impulse/surge pressure and vacuum rating.
| Pressure Specification | Meaning |
|---|---|
| Maximum Working Pressure — MWP | Maximum pressure permitted during normal operation under specified conditions |
| Proof Pressure | Higher, non-destructive test pressure used to verify hose integrity |
| Minimum Burst Pressure | Minimum pressure the hose must withstand before rupture during destructive testing |
| Design / Safety Factor | Relationship between working pressure and minimum burst pressure |
| Impulse / Surge Pressure | Repeated or transient pressure peaks experienced during operation |
| Vacuum Rating | Ability of the hose to resist collapse below atmospheric pressure |
Many hose constructions use ratios such as working pressure at 1×, proof pressure at approximately 2× and minimum burst pressure at approximately 4×. For example:
| Specification | Example |
|---|---|
| Maximum Working Pressure | 20 bar |
| Proof Pressure | 40 bar |
| Minimum Burst Pressure | 80 bar |
| Burst / Working Ratio | 4:1 |
This is an example only. A 4:1 design factor is common in many hose categories but is not universal. Applicable product standards and application requirements take precedence. ISO 7751 addresses ratios of proof pressure and burst pressure to maximum working pressure for rubber and plastics hoses and hose assemblies. ISO 1402 is a useful reference for hydrostatic testing of rubber and plastics hoses and hose assemblies.
Burst pressure is not working pressure. It is also not an independent property of TPU resin. Burst pressure is a finished-hose construction specification.
Pressure–Temperature Derating
Pressure capability changes with temperature. A hose rated for 20 bar at 23°C should not automatically be assumed to withstand 20 bar at 80°C. Thermoplastics change modulus, strength and creep behavior with temperature, and reinforcement adhesion or dimensional stability can also change.
| Temperature | Allowable Working Pressure |
|---|---|
| 23°C | 100% |
| 40°C | 90% |
| 60°C | 75% |
| 80°C | 55% |
Illustrative example only — not a Goaflex product specification. Do not use these numbers as actual product ratings.
Impulse and Pressure-Cycle Performance
A hose can survive a high one-time burst test and still fail prematurely under repeated pressure cycles. A system cycling from 10 bar to 50 bar and back to 10 bar, thousands or millions of times, places a different demand on the hose than a single hydrostatic burst test.
Industrial and hydraulic hose testing may consider pressure level, pressure peaks, number of cycles, temperature, bend radius, leakage criteria and failure criteria. High burst pressure does not necessarily mean long hose life.
Vacuum and Collapse Resistance
Pressure risk is not only outward bursting. A suction hose may fail by collapsing inward. Vacuum rating, collapse resistance, bend radius under vacuum, wire helix, rigid polymer helix and reinforcement structure all matter.
This is why TPU spiral suction hoses are designed differently from simple pressure tubing. The TPU wall may provide abrasion resistance and flexibility, while the helix provides structural resistance against vacuum collapse.
Finished-Hose Specifications That Matter
| Specification | Why It Matters |
|---|---|
| ID | Flow capacity and pressure loss |
| OD | Fitting compatibility and routing |
| Wall thickness | Pressure, flexibility, durability |
| Maximum Working Pressure | Normal operating limit |
| Proof Pressure | Integrity testing |
| Minimum Burst Pressure | Structural safety verification |
| Design Factor | Relationship between MWP and burst |
| Impulse Resistance | Pressure-cycle durability |
| Vacuum Rating | Collapse resistance |
| Temperature Range | Thermal limits |
| Pressure-Temperature Derating | Reduced pressure capability at temperature |
| Minimum Bend Radius | Installation geometry |
| Hardness | Flexibility and stiffness |
| Tensile Strength | Mechanical durability |
| Tear Strength | Crack propagation resistance |
| Abrasion Resistance | Wear performance |
| Chemical Resistance | Media compatibility |
| Hydrolysis Resistance | Water/humidity resistance |
| UV / Weather Resistance | Outdoor durability |
| Electrical Properties | Static/electrical requirements |
| Layer Adhesion | Multi-layer integrity |
| Regulatory Compliance | Food, medical, potable water, etc. |
How Thermoplastic Industrial Hoses Are Manufactured
A typical thermoplastic hose process includes resin selection and drying, inner-tube extrusion, cooling and dimensional control, reinforcement, outer-cover extrusion, helix or specialty construction where needed, final dimensional testing, proof-pressure testing, burst testing, bend testing, impulse testing where applicable and fitting installation/testing.
TPU and nylon are hygroscopic and normally require controlled drying before extrusion. Processing temperature should be selected by grade and equipment; overly prescriptive temperatures should not be used without a verified product data sheet.
Reinforcement: Braid, Spiral and Helix
Braided reinforcement provides a useful combination of flexibility and pressure capability. Spiral reinforcement is often used for higher-pressure or high-impulse designs. Helix reinforcement primarily helps resist collapse in suction or vacuum service.
Two hoses made from the same TPU resin can have completely different pressure ratings because reinforcement construction may dominate the structural pressure performance.
STAMPED Hose Selection Method
| Factor | Question |
|---|---|
| Size | ID, OD and flow? |
| Temperature | Fluid and ambient temperatures? |
| Application | Moving, stationary, dragging, flexing, vacuum, outdoor? |
| Media | Air, water, oil, chemical, powder, slurry, gas, food? |
| Pressure | Continuous pressure, pressure spikes, vacuum? |
| Ends | Fittings and attachment method? |
| Delivery | Required flow and velocity? |
Typical Material Selection Directions
| Application | Typical Material Direction |
|---|---|
| Abrasive powder / pellets | TPU, abrasion-resistant rubber, UHMWPE |
| Pneumatic tools | TPU or nylon |
| Factory automation | TPU or nylon |
| Robotic movement | TPU |
| General water hose | PVC, TPU or rubber |
| Low-cost utility hose | PVC |
| Suction / vacuum | Helix-reinforced PVC, TPU or rubber |
| Abrasive suction | TPU-lined reinforced hose |
| High-pressure thermoplastic hose | Reinforced TPU or PA |
| Hydraulic applications | Reinforced TPU, PA or rubber depending on construction |
| Aggressive chemicals | PTFE, PFA, FEP, UHMWPE or specialized rubber |
| High-temperature chemicals | PTFE / PFA |
| Oil / petroleum | NBR, PTFE or compatible TPU depending on conditions |
| Steam / hot water | Purpose-designed EPDM or specialty hose |
| Food / beverage | Compliant TPU, PVC, silicone, EPDM or fluoropolymer |
| Medical / laboratory | Silicone, TPU, PTFE, PFA or FEP |
This table does not replace chemical-compatibility testing or application-specific qualification. Media concentration, temperature, cleaning chemistry, movement, pressure spikes and regulatory requirements can change the correct selection.
TPU Resin vs. Finished-Hose Specification
| Finished Hose Specification | Related TPU Material Consideration |
|---|---|
| Working pressure | Tensile strength, modulus, creep |
| Burst pressure | Strength, elongation, wall integrity, reinforcement interaction |
| Impulse life | Flex fatigue and heat resistance |
| Bend radius | Hardness and flexibility |
| Abrasion life | Abrasion and tear resistance |
| Vacuum resistance | Stiffness plus hose construction |
| Temperature capability | Thermal properties and heat aging |
| Water resistance | Hydrolysis resistance |
| Hose life | Fatigue, abrasion, aging and chemical resistance |
| Layer integrity | Adhesion |
| Dimensional consistency | Melt strength and extrusion stability |
TPU resin does not independently determine whether a finished hose can withstand 20 bar, 100 bar or 300 bar. However, the TPU formulation strongly influences whether the hose manufacturer can successfully achieve the target mechanical, processing, fatigue and durability performance.
Developing a TPU Hose Application?
For hose manufacturers, selecting the correct TPU involves much more than choosing a Shore hardness. When evaluating a new TPU hose project, useful development information includes hose ID and OD, target hardness, maximum working pressure, burst-pressure target, operating temperature, transported medium, reinforcement type, bend requirements, abrasion environment, hydrolysis requirements, target service life and extrusion process.
With this information, TPU chemistry and processing characteristics can be selected around the actual hose design rather than simply supplying a generic resin.
Reference standards and technical context
- ISO 7751:2016 — Rubber and plastics hoses and hose assemblies — ratios of proof and burst pressure to maximum working pressure.
- ISO 1402:2021 — Rubber and plastics hoses and hose assemblies — hydrostatic testing.
- BASF Elastollan TPU hoses and tubes application information — TPU hose/tube property and chemistry context.
- Saint-Gobain Versilon PTFE tubing information and Versilon PFA tubing information — fluoropolymer temperature, chemical and purity context.
- Third-party photographs are credited in captions. Manufacturer reference images mentioned during planning were not republished because reusable image rights were not confirmed.
All pressure, temperature and material-selection examples in this article are educational examples only. Finished hose ratings must be established by the hose manufacturer through validated design, testing and applicable standards.
