Rotima-Logo
  • About us
  • Glossary
  • Areas of application
  • Team
  • Jobs
  • Contact us
  • Downloads
  • Electronic components
    • Resistors
      • Resistor Networks Bourns®
      • Current Sense Resistors Bourns®
      • Power Resistors Bourns®
      • Current Sense / Shunts
        • On-Board
        • Off-Board
      • Chip resistors
      • Trimmer
      • Voltage Dividers Networks
      • Customized resistors
      • Wire resistors
      • Temperature-dependent
      • Power Resistors
    • Capacitors
      • Electrolytic capacitors
        • Screw terminal electrolytic capacitors
        • Snap-in electrolytic capacitors
        • SMT electrolytic capacitors
        • Radial electrolytic capacitors
        • Polymer electrolytic capacitors
      • Film capacitors
        • High-pulse capacitors
        • Spark killer
        • Interference suppression capacitors
        • Film capacitors from AIC-Europe
      • Ceramic capacitors (MLCC)
      • Tantalum capacitors
        • Radial tantalum capacitors
        • SMT tantalum capacitors
        • Hybrid tantalum capacitors
    • Our suppliers
    • Inductances
      • Power Inductors
      • Coil Inductors
      • Chip Inductors
      • Transformer & transformer
    • Integrated circuits (IC)
      • All-IN-ONE AC-DC converter
      • GaN AC-DC Power Converter
      • Primary Side Regulation AC-DC Power Converter
      • Non-Isolated AC-DC Power Converter
      • Secondary Side Regulation AC-DC Power Converter
      • Synchronous rectifier
      • Synchronous Rectifier Controller
    • EMC filter
    • Bourns products
      • Ceramic PTC Heaters Bourns®
      • Open LED Shunt (LSP) Bourns®
      • Switches Bourns®
      • Modular Contacts Bourns®
      • Bourns® inductors
      • Custom Magnetics Bourns®
      • Precision Sensors Bourns®
      • Commercial Panel Controls & Encoders Bourns®
      • Industrial Panel Controls Bourns®
      • Pro Audio Products Bourns®
      • Industrie Encoder Bourns®
      • Stock of Bourns® products
      • Turns-Counting Dials Bourns®
      • Circuit protection
        • Mini Breakers Bourns®
        • SinglFuse™ SMD Fuses Bourns®
        • TBU® High-Speed Protectors Bourns®
        • Multifuse® Polymer PTC freeXpansion™ Products Bourns®
        • Ceramic PTC Products Bourns®
        • Chipguard® ESD Suppressors Bourns®
        • Multifuse® Polymer PTC Resettable Fuses Bourns®
        • Gas Discharge Tubes Bourns®
        • GMOV™ Hybrid Overvoltage Protection Components Bourns®
        • TCS™ High-Speed Protectors Bourns®
    • Input / Output elements
      • Membrane keypads
      • Actuators
      • Sound Components
      • Piezoelectric Elements
      • LED related products
      • Transducers
    • Circuit protection
      • Surge Protective Devices
      • Temperature fuses
    • Diodes
      • Diodes Bourns®
      • Diode Arrays Bourns®
      • Power TVS Diodes Bourns®
    • Transducer
      • DC/DC converter
      • Voltage transformer
      • Current transformer
    • Sensors
      • Light sensors
      • Ultrasonic sensors
    • Interference suppression filter
      • Mains interference suppression filter
      • Radio interference suppression filter
    • Varistors
      • Multilayer Varistors (MLV) Bourns®
      • Metal Oxide Varistors (MOV) Bourns®
    • Thyristors
      • TISP® Thyristor Surge Protectors Bourns®
    • Plug connector
      • Power connector
    • Potentiometer
      • Commercial Slide Potentiometers Bourns®
      • Precision Controls Bourns®
      • Linear Motion Potentiometers Bourns®
      • Trimpot® Trimming Potentiometers Bourns®
    • Piezo elements
  • Customized inductances
    • Transformers
      • Small transformers
      • Autotransformers
      • Isolating transformers
      • Safety transformers
      • Toroidal transformers
      • UI transformers
      • M transformers
      • EI transformers
      • Planar transformers
    • Throttles
      • Toroidal chokes
      • Storage chokes
    • Coils
      • Air coils
      • Coilformers
      • Baking varnish coils
    • Winding technique
    • Products
    • Development and production
    • Certifications & standards
  • Electronics Production equipment
    • Metal mesh
      • Earthing straps
      • Hose braids
      • Power Connections
      • High-performance and special solutions
    • Plugs / plug connections
      • Quick connectors
      • Industrial connectors
    • Strands
      • High frequency strands
      • Fine wires
    • Ferrites
      • Ferrite cores
    • Electrical insulating tapes
      • Glass fabric tape 3M - Types 27-69-79
      • Polyester laminate 3M - Types 44-44DA-44TA-44HT-55
      • Acetate fabric tape 3M - types 11 - 28
      • Epoxy film 3M - Types 1 - Super 10 - Super 20
      • Glass fiber reinforced polyester films 3M - Types 46 - 1039 - 1046 - 1076 - 1139 -1339
      • Electrical insulating tape paper 3M - types 12 - 16
      • Electrical insulating tape polyimide film 3M - Types 92 - 98C-1 - 1205 - 1218
      • Electrical insulating tape PTFE film 3M - types 60 - 61 - 62
      • Electrical insulating tape PVC film 3M - Scotch 22 - Super 33+ - Super 35 - Super 88
      • Electrical insulating tape 3M polyester films
      • Electrically conductive fabric tapes
      • EMC shielding foil made of aluminum
      • EMC shielding foils made of copper
    • Temperature switch
    • Potting compound
    • Impeder cores
    • Nanocrystalline materials
    • Amorphous materials
  • Hose technology
    • Silicone hoses
      • Silicone hose industry
      • Silicone tube Pharma
      • MedTech silicone tubing
      • Silicone round cord and monofilament
      • Silicone fabric hose - pressure hose
    • Shrink tubing
      • Polyolefin and Halogen-Free Heat-Shrink Tubing
      • Cold-Shrink Tubing: EPDM & Silicone
      • PVDF Heat-Shrink Tubing (Kynar®)
      • Silicone Heat-Shrink Tubing
      • PTFE Heat-Shrink Tubing
      • PEEK Heat-Shrink Tubing
      • PFA Heat-Shrink Tubing
      • FEP Heat-Shrink Tubing
    • Protective hoses
      • Braided hose
      • Fabric shrink tubing
      • PA 12 Hose
      • Insulating hose made of polyamide 12
    • Fluoroplastic hose
      • FEP hose
      • FEP heat shrink tubing 2:1
      • FEP shrink tubing 1.3:1 and 1.6:1
      • FEP heat shrink tubing 110°C
      • FEP roller coating with shrinkage
      • FEP/EFEP double-wall shrink tubing
      • PFA hose
      • PTFE hose
      • PTFE heat shrink tubing 2:1
      • PTFE shrink tubing 4:1
      • PTFE heat-shrink tubing Sub-Lite-Wall
      • PTFE-FEP double-wall shrink tubing
    • Special hoses
      • Special hoses PEEK
      • Polyimide hose
      • PEEK shrink tubing
    • Further hose technology
      • Food hoses
      • PTFE shrink tubing
      • Chemical hoses
      • Industrial hoses
  • Shrink tubing
    • Shrink end cap
    • FEP Heat-Shrink Tubing
    • PFA Heat-Shrink Tubing
    • PEEK Heat-Shrink Tubing
    • PVDF Heat-Shrink Tubing (Kynar®)
    • Silicone Heat-Shrink Tubing
    • Polyolefin and Halogen-Free Heat-Shrink Tubing
    • Cold-Shrink Tubing: EPDM & Silicone
    • PTFE Heat-Shrink Tubing
Added value distributor and development

PTFE heat-shrink tubing for extreme thermal and chemical conditions

PTFE heat-shrink tubing (polytetrafluoroethylene) from ROTIMA represents the cutting edge of modern heat-shrink components. Wherever conventional materials such as polyolefin fail due to heat or aggressive media, PTFE provides the necessary reliability: with continuous operating temperatures of up to +260 °C and virtually universal chemical resistance.

For over 60 years, ROTIMA has been your expert partner for sophisticated tubing systems. Our portfolio includes standard shrink ratios of 2:1 and 4:1, as well as high-precision Sub-Lite-Wall variants for minimally invasive medical technology. Thanks to our locations in Switzerland and Germany, we guarantee rapid availability for industry and laboratories.
Direct inquiry
Request a callback
EPDM cold-shrink tubing
Icon experience
Over 60 years of experience
using PTFE shrink technology
Icon delivery times
Short delivery times
through optimized warehousing
Icon Germany-Switzerland
Germany and Switzerland
Dual location strength and reliability

Why PTFE Heat-Shrink Tubing Is Indispensable in High-End Applications

In the world of "extreme environment" applications, PTFE is the top choice at ROTIMA. The material is chemically inert to nearly all acids, alkalis, and solvents. Its extremely low coefficient of friction also makes PTFE the perfect lubricating coating for probes, medical instruments, or rollers.

For engineers, the high dielectric strength and physiological safety are particularly crucial factors. Whether in a transparent version for visual inspection or in colored variants for coding—PTFE provides protection under conditions that would destroy other plastics.

PTFE is characterized not only by its thermal stability but also by excellent dielectric properties and extremely low surface energy. The tubing is UV-stable, non-flammable, and permanently weather-resistant.

Important note regarding processing: The activation temperature of PTFE, at approximately 330 °C to 350 °C, is significantly higher than that of standard plastics. Precise process control is essential to protect the shrink-wrapped product from thermal damage.

Technical Comparison Table of PTFE Variants

VarianteSchrumpfrateWandungMax. Temp.Besonderheit
PTFE 2:12:1Standard+260 °CUniversalschutz
PTFE 4:14:1Standard+260 °CKomplexe Formen
Sub-Lite-Wall2:1 / 4:1Extrem dünn+260 °CPlatzsparende Isolation
PTFE/FEPVariabelDoppelwand+204 °CLängswasserdicht
Request a Precision Dimensions Chart

Varieties and Specifications of PTFE Heat-Shrink Tubing

PTFE/FEP Double-Wall Heat-Shrink Tubing
This combination uses a PTFE outer sheath for thermal protection and an FEP inner liner that melts as it shrinks, creating a moisture-tight seal.
ParameterDescription
StructurePTFE outer wall / FEP inner wall
FunctionEncapsulation and Moisture Protection
Special featureFEP melts (adhesive effect), PTFE shrinks
Max. Temperature+204 °C (limited by the FEP content)
Send Inquiry
2:1 PTFE Heat-Shrink Tubing (Industry Standard)
The classic solution for universal insulation in furnaces, laboratories, or engines. Ideal for cylindrical objects with minimal differences in diameter.
ParameterTechnical Value
MaterialPTFE (polytetrafluoroethylene)
Shrinkage ratio2:1
Continuous operating temperature−200 °C to +260 °C
Shrinkage temperature+330 °C to +350 °C
Flammabilitynon-flammable (UL94 V-0)
Coefficient of Friction0.1 (static)
Dielectric strengthapprox. 40-80 kV/mm
Send Inquiry
4:1 PTFE Heat-Shrink Tubing (High Adaptability)
The high shrinkage rate makes it easy to shrink-wrap irregular shapes, connectors, or end caps.
ParameterTechnical Value
MaterialPTFE
Shrinkage ratio4:1
Continuous operating temperature−200 °C to +260 °C
Change in lengthmax. −15 % bis −20 %
Standard ColorNatural (translucent-milky)
Send Inquiry
Sub-Lite-Wall PTFE (Micro-Miniature Solutions)
These extremely thin-walled tubing (starting at 0.05 mm) are primarily used in microelectronics and medical technology to ensure maximum insulation with minimal space requirements.
ParameterTechnical Value
Special featureExtremely thin-walled
Wall thicknessfrom about 0.05 mm
Dielectric Qualityvery high despite the thin walls
Field of applicationMedical Technology, Sensor Technology
Send Inquiry
Do you have any questions about our products:
PTFE heat-shrink tubing
Request a callback
Direct inquiry

Thermal Activation and Proper Installation

Processing PTFE requires experience and the right equipment. Due to its high shrinkage temperature of approximately +340 °C, a uniform heat supply must be ensured to prevent defects.

  • Heat sources: We recommend high-performance hot-air guns with digital temperature control, specialized infrared ovens, or temperature-controlled heating cabinets.

  • Important safety note: Overheating above +360 °C causes the material to decompose and release toxic fumes. Therefore, always ensure adequate ventilation in the workplace.

Precision cutting and custom shapes

ROTIMA not only supplies PTFE heat-shrink tubing by the meter, but also custom-cuts it according to your specifications. Using specialized cutting technologies, we guarantee clean cut edges and extremely tight tolerances for this highly tough material.
PerformanceROTIMA Specification
CuttingPrecise lengths starting at just a few millimeters
Measurement TechnologyMicroscopic inspection down to 0.01 mm is possible
Special ShapesFlared ends or markings available upon request

Applications by Industry

Medical Technology

Thanks to its biocompatibility and physiological safety, PTFE is ideal for surgical instruments and catheters. Its low-friction surface minimizes resistance during insertion.
Request Medical Device Validation

Chemical and Process Industries

Here, PTFE protects sensitive temperature sensors and laboratory components from corrosive media. Its chemical inertness ensures an extremely long service life for the equipment.
Specify a chemical protection solution

Aviation and Defense

Its non-flammability and resistance to kerosene and hydraulic fluids make PTFE an indispensable safety feature in areas near engines and in radar systems.
Request an Aviation Specification

Mechanical Engineering

PTFE serves as a high-temperature anti-adhesive coating on rollers and prevents materials from sticking during industrial manufacturing processes.
Have an industrial anti-seize coating applied
Do you have any questions about our products:
PTFE heat-shrink tubing
Request a callback
Direct inquiry

Types and Varieties of PTFE Heat-Shrink Tubing

The differentiation of PTFE heat-shrink tubing is essential for process reliability in high-temperature and high-voltage environments. PTFE (polytetrafluoroethylene) acts as the ultimate barrier against aggressive media and thermal stresses up to +260 °C. The choice of variant—ranging from standard shrink ratios to extremely thin-walled geometries—determines the dielectric integrity and mechanical protection of the entire system. An incorrect specification inevitably leads to material stresses or incomplete shrinkage at sintering temperatures exceeding +330 °C. ROTIMA classifies PTFE solutions based on their geometric adaptation, wall thickness, and specific sealing function.
PTFE-Conductive (Special Antistatic Version)
In ATEX zones or highly sensitive electronic environments, the electrostatic charging of standard PTFE poses a risk. This variant is modified with conductive additives. Our ROTIMA engineers recommend this variant to prevent spark discharges without compromising the chemical resistance of PTFE. An incorrect choice (standard PTFE in an ATEX zone) can lead to explosions caused by static discharge.
ParameterSpecific valueTechnical Classification
Surface resistance< 10^6 ohmsDissipative capacity
Operating environmentATEX / ESD ZonesExplosion protection
ColorBlackConductive identification
Mechanical StrengthSimilar to StandardFull PTFE Performance
Continuous operating temperature+260 °CNo limit on the heat
Chemical InertnessPreservedAdditives that are chemically stable
ApplicationFuel LinesProtection Against ESD Discharge
Compliance with StandardsATEX-compliantSafety in Hazard Zones
Open detail page
PTFE Edge Precision (High-Tech Version)
PTFE-Edge-Precision heat-shrink tubing is optimized for robot-assisted applications and automated manufacturing processes. ROTIMA offers extremely tight diameter tolerances, which are necessary for automatic placement and shrinking in IoT-controlled manufacturing cells. A standard tubing would cause jams in automated feeding systems. This variant serves as the interface between passive insulation and Industry 4.0.
ParameterSpecific valueTechnical Classification
Diameter Tolerance+/- 0.05 mmAutomation Precision
RoundnessOptimizedFeed Reliability
Anti-seize coatingOptional (external)Reduction of Feed Forces
IdentificationLaser marking is possibleTraceability
Cycle Time SuitabilityOptimal Heat ConductionFaster Sintering
ProcessingRobot-compatibleCost-Effectiveness Series
StiffnessDefinedSafety in Handling
Quality Control100% measured inlineZero-Defect Strategy
Open detail page
PTFE/FEP Double Wall (Special Sealing Version)
This hybrid design solves the problem of moisture sealing at extreme temperatures. At ROTIMA, we combine a PTFE outer sheath with an FEP inner coating. When the shrink temperature is reached, the inner FEP layer melts (melting point approx. +260 °C), while the PTFE jacket shrinks and forces the molten material into all the gaps. This creates a longitudinally watertight seal that pure PTFE hoses, by their very design, cannot achieve.
ParameterSpecific valueTechnical Classification
StructurePTFE exterior / FEP interiorHybrid Structure
Operating PrincipleSintering + Melt FlowIntegrated Waterproofing
Continuous operating temperaturemax. +204 °CLimited by the FEP inner layer
Protection classIP67 / IP68 equivalentMoisture Protection
Field of ApplicationSensor End CapsCorrosion protection
Chemical ResistanceExcellentProtection of the hot-melt adhesive
Wall structureDouble-walledHighly durable under mechanical stress
TightnessCompletely waterproof along its lengthProtection of Contact Points
Open detail page
PTFE Retrofit Long Length (Lifecycle Version)
For the repair of long pipe systems or cable harnesses in existing installations, this variant offers optimized length tolerances and unwinding properties. We often recommend this solution on large reels for continuous shrink-wrapping processes. It solves the problem of waste and cutting into smaller lengths during large-scale renovations in plant engineering. Without this variant, engineers would have to rely on individual pieces, which increases the likelihood of errors at the transition points.
ParameterSpecific valueTechnical Classification
Delivery formLarge Reels / ContinuousLifecycle Efficiency
Length ToleranceMinimizedDimensional Stability Over Distance
Surface smoothnessOptimized for Moving InEasy to Use
Shear strengthHighProtection in Plant Retrofits
Tensile strengthRaised for LoadingMechanical Safety
Dimensional accuracyExtremely sturdyLong-Term Value Preservation
Wall Thickness Uniformity< 5% deviationHomogeneous Insulation
PackagingDust-proofSurface Protection
Open detail page
Medical-Grade PTFE Heat-Shrink Tubing (Cleanroom Version)
We offer this variant, made with FDA-compliant base materials, specifically for the medical technology and pharmaceutical industries. It differs from standard PTFE due to its particle-free production process and certified biocompatibility. It solves the problem of material interaction with human tissue or sensitive active ingredients. Choosing the wrong material in these applications can lead to regulatory issues and health risks.
ParameterSpecific valueTechnical Classification
ConformityFDA / USP Class VIRegulatory Certainty
Cleanroom ClassAccording to customer requirementsParticle Minimization
Extraction ValuesMinimalMedia Security
SterilizabilityAutoclave / ETOReusability
Surface energyExtremely lowPrevention of Biofilms
Smell/TasteNeutralFood Safety
TransparencyHigh (Clear Grade)Visual inspection of the medium
ValidationCertifiedE-E-A-T Compliance
Open detail page
PTFE Heat-Shrink Tubing, High-Recovery 4:1 (Advanced Geometry Version)
The 4:1 variant allows for heat-shrinking over highly irregular geometries and large connectors. ROTIMA uses this variant for applications in which a component has a significantly larger diameter at one point than at the section to be insulated. This solves the problem of assembly feasibility for complex cable assemblies or end caps. An incorrect selection in this case leads to wrinkling or excessive mechanical stress in the material after the shrink-wrapping process.
ParameterSpecific valueTechnical Classification
Shrinkage ratio4:1High bridging capability
Change in lengthmax. -15 % bis -20 %Axial shrinkage factor
Wall thickness (shrunk)Standard to MediumProtective Effect After Resetting
Dielectric strengthapprox. 40-80 kV/mmHigh dielectric strength
Area of applicationComplex End CapsInstallation Advantage
Process ControlPrecise Heat DeliveryPreventing Material Stress
Standard AWGWidely availableDimensions in accordance with standards
Chemical InertnessFully givenProtection Against Aggressive Interfaces
Open detail page
PTFE Standard Industrial 2:1 (Central Base Version)
Standard industrial PTFE heat-shrink tubing forms the backbone of universal high-temperature insulation. Our engineers rely on a shrink ratio of 2:1, which is optimized for cylindrical components with minimal differences in diameter. The operating principle is based on thermal recovery at approximately +340 °C, while maintaining chemical inertness and excellent lubricity. It is primarily used for electrical insulation in furnaces, engines, and chemical plants, where polyolefin fails due to heat. Limitation: This variant is designed for standard diameters; for complex transitions, the ratio is insufficient.
ParameterSpecific valueTechnical Classification
Shrinkage ratio2:1Standard Adjustment
Continuous operating temperature-200 °C to +260 °CMaximum thermal stability
Shrinkage temperature+330 °C to +350 °CHigh-Temperature Sintering
Tensile strength17,2 - 34,5 MPaPower Reserve
Dielectric constant2.1Excellent insulation properties
Coefficient of Friction0.1 (static)Minimal static friction
FlammabilityUL 94 V-0Inherently non-flammable
Chemical ResistanceAlmost universalProtection against acids/bases
UV resistanceExcellentNo weathering when used outdoors
ColorNatural / MilkyVisual inspection is possible under certain conditions
Open detail page
Sub-Lite-Wall® PTFE Heat-Shrink Tubing (High-End Micro-Insulation)
Sub-Lite-Wall® heat-shrink tubing is our solution for microelectronics and medical technology. We offer wall thicknesses starting at 0.05 mm to provide insulation without a significant increase in diameter. The main problem this variant solves is the protection of extremely small probes or wires (e.g., in catheters), where conventional tubing would be too stiff or too thick. It differs from standard variants in its microscopic wall precision.
ParameterSpecific valueTechnical Classification
Wall thickness (min.)0.05 mm and upFocus: Micro-Miniaturization
Tolerance (Wall)+/- 0.013 mmHighest Manufacturing Precision
BiocompatibilityUSP Class VIMedical Approval
Impact resistanceHigh (despite the thin wall)Protection of the Smallest Conductors
Dielectric QualityVery highSecurity in the Smallest of Spaces
Surface finishUltra-smoothMinimizing Friction in Probes
Diameter rangeMicro-rangePrecision Isolation
SterilizabilityFully givenETO/autoclave-compatible
Open detail page
Do you have any questions about our products:
PTFE heat-shrink tubing
Request a callback
Direct inquiry

PTFE Heat-Shrink Tubing: Technical Specifications and Solutions by Industry

PTFE-Conductive (Special Antistatic Version)
In ATEX zones or highly sensitive electronic environments, the electrostatic charging of standard PTFE poses a risk. This variant is modified with conductive additives. Our ROTIMA engineers recommend this variant to prevent spark discharges without compromising the chemical resistance of PTFE. An incorrect choice (standard PTFE in an ATEX zone) can lead to explosions caused by static discharge.
ParameterSpecific valueTechnical Classification
Surface resistance< 10^6 ohmsDissipative capacity
Operating environmentATEX / ESD ZonesExplosion protection
ColorBlackConductive identification
Mechanical StrengthSimilar to StandardFull PTFE Performance
Continuous operating temperature+260 °CNo limit on the heat
Chemical InertnessPreservedAdditives that are chemically stable
ApplicationFuel LinesProtection Against ESD Discharge
Compliance with StandardsATEX-compliantSafety in Hazard Zones
PTFE Edge Precision (High-Tech Version)
PTFE-Edge-Precision heat-shrink tubing is optimized for robot-assisted applications and automated manufacturing processes. ROTIMA offers extremely tight diameter tolerances, which are necessary for automatic placement and shrinking in IoT-controlled manufacturing cells. A standard tubing would cause jams in automated feeding systems. This variant serves as the interface between passive insulation and Industry 4.0.
ParameterSpecific valueTechnical Classification
Diameter Tolerance+/- 0.05 mmAutomation Precision
RoundnessOptimizedFeed Reliability
Anti-seize coatingOptional (external)Reduction of Feed Forces
IdentificationLaser marking is possibleTraceability
Cycle Time SuitabilityOptimal Heat ConductionFaster Sintering
ProcessingRobot-compatibleCost-Effectiveness Series
StiffnessDefinedSafety in Handling
Quality Control100% measured inlineZero-Defect Strategy
PTFE/FEP Double Wall (Special Sealing Version)
This hybrid design solves the problem of moisture sealing at extreme temperatures. At ROTIMA, we combine a PTFE outer sheath with an FEP inner coating. When the shrink temperature is reached, the inner FEP layer melts (melting point approx. +260 °C), while the PTFE jacket shrinks and forces the molten material into all the gaps. This creates a longitudinally watertight seal that pure PTFE hoses, by their very design, cannot achieve.
ParameterSpecific valueTechnical Classification
StructurePTFE exterior / FEP interiorHybrid Structure
Operating PrincipleSintering + Melt FlowIntegrated Waterproofing
Continuous operating temperaturemax. +204 °CLimited by the FEP inner layer
Protection classIP67 / IP68 equivalentMoisture Protection
Field of ApplicationSensor End CapsCorrosion protection
Chemical ResistanceExcellentProtection of the hot-melt adhesive
Wall structureDouble-walledHighly durable under mechanical stress
TightnessCompletely waterproof along its lengthProtection of Contact Points
PTFE Retrofit Long Length (Lifecycle Version)
For the repair of long pipe systems or cable harnesses in existing installations, this variant offers optimized length tolerances and unwinding properties. We often recommend this solution on large reels for continuous shrink-wrapping processes. It solves the problem of waste and cutting into smaller lengths during large-scale renovations in plant engineering. Without this variant, engineers would have to rely on individual pieces, which increases the likelihood of errors at the transition points.
ParameterSpecific valueTechnical Classification
Delivery formLarge Reels / ContinuousLifecycle Efficiency
Length ToleranceMinimizedDimensional Stability Over Distance
Surface smoothnessOptimized for Moving InEasy to Use
Shear strengthHighProtection in Plant Retrofits
Tensile strengthRaised for LoadingMechanical Safety
Dimensional accuracyExtremely sturdyLong-Term Value Preservation
Wall Thickness Uniformity< 5% deviationHomogeneous Insulation
PackagingDust-proofSurface Protection
Medical-Grade PTFE Heat-Shrink Tubing (Cleanroom Version)
We offer this variant, made with FDA-compliant base materials, specifically for the medical technology and pharmaceutical industries. It differs from standard PTFE due to its particle-free production process and certified biocompatibility. It solves the problem of material interaction with human tissue or sensitive active ingredients. Choosing the wrong material in these applications can lead to regulatory issues and health risks.
ParameterSpecific valueTechnical Classification
ConformityFDA / USP Class VIRegulatory Certainty
Cleanroom ClassAccording to customer requirementsParticle Minimization
Extraction ValuesMinimalMedia Security
SterilizabilityAutoclave / ETOReusability
Surface energyExtremely lowPrevention of Biofilms
Smell/TasteNeutralFood Safety
TransparencyHigh (Clear Grade)Visual inspection of the medium
ValidationCertifiedE-E-A-T Compliance
PTFE Heat-Shrink Tubing, High-Recovery 4:1 (Advanced Geometry Version)
The 4:1 variant allows for heat-shrinking over highly irregular geometries and large connectors. ROTIMA uses this variant for applications in which a component has a significantly larger diameter at one point than at the section to be insulated. This solves the problem of assembly feasibility for complex cable assemblies or end caps. An incorrect selection in this case leads to wrinkling or excessive mechanical stress in the material after the shrink-wrapping process.
ParameterSpecific valueTechnical Classification
Shrinkage ratio4:1High bridging capability
Change in lengthmax. -15 % bis -20 %Axial shrinkage factor
Wall thickness (shrunk)Standard to MediumProtective Effect After Resetting
Dielectric strengthapprox. 40-80 kV/mmHigh dielectric strength
Area of applicationComplex End CapsInstallation Advantage
Process ControlPrecise Heat DeliveryPreventing Material Stress
Standard AWGWidely availableDimensions in accordance with standards
Chemical InertnessFully givenProtection Against Aggressive Interfaces
PTFE Standard Industrial 2:1 (Central Base Version)
Standard industrial PTFE heat-shrink tubing forms the backbone of universal high-temperature insulation. Our engineers rely on a shrink ratio of 2:1, which is optimized for cylindrical components with minimal differences in diameter. The operating principle is based on thermal recovery at approximately +340 °C, while maintaining chemical inertness and excellent lubricity. It is primarily used for electrical insulation in furnaces, engines, and chemical plants, where polyolefin fails due to heat. Limitation: This variant is designed for standard diameters; for complex transitions, the ratio is insufficient.
ParameterSpecific valueTechnical Classification
Shrinkage ratio2:1Standard Adjustment
Continuous operating temperature-200 °C to +260 °CMaximum thermal stability
Shrinkage temperature+330 °C to +350 °CHigh-Temperature Sintering
Tensile strength17,2 - 34,5 MPaPower Reserve
Dielectric constant2.1Excellent insulation properties
Coefficient of Friction0.1 (static)Minimal static friction
FlammabilityUL 94 V-0Inherently non-flammable
Chemical ResistanceAlmost universalProtection against acids/bases
UV resistanceExcellentNo weathering when used outdoors
ColorNatural / MilkyVisual inspection is possible under certain conditions
Sub-Lite-Wall® PTFE Heat-Shrink Tubing (High-End Micro-Insulation)
Sub-Lite-Wall® heat-shrink tubing is our solution for microelectronics and medical technology. We offer wall thicknesses starting at 0.05 mm to provide insulation without a significant increase in diameter. The main problem this variant solves is the protection of extremely small probes or wires (e.g., in catheters), where conventional tubing would be too stiff or too thick. It differs from standard variants in its microscopic wall precision.
ParameterSpecific valueTechnical Classification
Wall thickness (min.)0.05 mm and upFocus: Micro-Miniaturization
Tolerance (Wall)+/- 0.013 mmHighest Manufacturing Precision
BiocompatibilityUSP Class VIMedical Approval
Impact resistanceHigh (despite the thin wall)Protection of the Smallest Conductors
Dielectric QualityVery highSecurity in the Smallest of Spaces
Surface finishUltra-smoothMinimizing Friction in Probes
Diameter rangeMicro-rangePrecision Isolation
SterilizabilityFully givenETO/autoclave-compatible

FAQs by Industry: PTFE Heat-Shrink Tubing

Select an industry
Automotive Industry
Chemical Industry
Electrical Engineering
Semiconductor Industry
Laboratory Technology
Medical Technology
Pharmaceutical Industry
Telecommunications
Aerospace
Mechanical Engineering
What can we do for you?
Contact our product experts
Dominik Grahammer
Dominik Grahammer
Sales- and Productmanagement
+49 8341 9340348
[email protected]
Direct inquiry
Direct inquiry
What can we do for you?
Contact our product experts
Rotima Oliver Bürli
Oliver Bürli
Head of Hose Technology, Sales and Product Management
+41 44 927 26 38
[email protected]
Direct inquiry
Request a callback

Do you have any questions about:

PTFE Heat-Shrink Tubing

Just send us a short message and we will be happy to answer your questions by phone or e-mail.
Questions?
Write to us!

Would you like to find out more about our high-quality products?

We have a large warehouse, short delivery times and duty-free delivery!

Do not hesitate to contact us, we will be happy toadvise you personally.
Your contact persons
Request a callback

Would you like a personal telephone consultation?

Simply fill out the form and we will get back to you.

What are the advantages of using DC voltage transformers compared to AC voltage transformers?

Please fill out the form below to download the data sheet for this product.
Fields marked with * are mandatory fields

What are the advantages of using DC voltage transformers compared to AC voltage transformers?

You can now click and download the PDF documents as usual.
X

Get in touch with us

Our hoses at a glance

Because the part makes the price. Just enter your email and we will send you our catalog free of charge.
Request catalog
YOUR WAY TO US IN SWITZERLAND:
Switzerland
© ROTIMA AG
Industriestrasse 14 · CH-8712 Stäfa
YOUR WAY TO US IN GERMANY:
Germany
© Rotima GmbH - 2026
Innovapark 20 - 87600 Kaufbeuren
Change your consent
  • Sitemap
  • Legal Notice
  • Data protection
  • GTC
ROTIMA Marketing Cellphone Kontakt
We are looking forward
to your call!
Switzerland
+41 44 927 26 26
[email protected]
Germany
+49 8341 9340320
[email protected]
Each application is
individual
Switzerland
+41 44 927 26 26
[email protected]
Germany
+49 8341 9340320
[email protected]
Make a request
Request a callback