PVDF heat-shrink tubing for maximum abrasion resistance and mechanical protection
ROTIMA’s PVDF heat-shrink tubing offers an exceptional combination of mechanical toughness and chemical resistance. As a high-performance polymer, PVDF (polyvinylidene fluoride) is the ideal solution for applications in which components are exposed to extreme mechanical stress, abrasion, or aggressive fuels, while still requiring reliable electrical insulation.
Since 1964, ROTIMA has been your partner for sophisticated tubing technology in Switzerland and Germany. Our range of thin-walled Kynar® heat-shrink tubing is specifically tailored to the requirements of the aerospace, automotive, and medical technology industries. We guarantee the highest quality and fast availability through our optimized inventory management.
Since 1964, ROTIMA has been your partner for sophisticated tubing technology in Switzerland and Germany. Our range of thin-walled Kynar® heat-shrink tubing is specifically tailored to the requirements of the aerospace, automotive, and medical technology industries. We guarantee the highest quality and fast availability through our optimized inventory management.
Over 60 years of experience
using PV DF shrink-wrapping technology
Short delivery times
through optimized warehousing
Germany and Switzerland
Dual location strength and reliability
Why PVDF heat-shrink tubing is the only option under extreme mechanical stress
In industrial environments where conventional tubing would fail due to friction or cuts, our customers rely on PVDF from ROTIMA. The high transparency of Kynar® tubes also allows for continuous visual inspection of the protected components, which is particularly advantageous in quality assurance.
Key technical advantages include minimal linear change during shrinkage and high puncture resistance. PVDF is also physiologically safe, enabling its use in analytical and medical technology applications where purity and durability must go hand in hand.
PVDF is characterized by its flame-retardant properties and high temperature resistance up to +175 °C. Thanks to its excellent chemical inertness toward acids and solvents, the material remains permanently stable even under harsh environmental conditions.
Specific advantage: Unlike softer fluoropolymers, PVDF offers significantly higher cut resistance and mechanical hardness. This makes it the material of choice for protecting sensors and cables in vibrating or moving systems.
Key technical advantages include minimal linear change during shrinkage and high puncture resistance. PVDF is also physiologically safe, enabling its use in analytical and medical technology applications where purity and durability must go hand in hand.
PVDF is characterized by its flame-retardant properties and high temperature resistance up to +175 °C. Thanks to its excellent chemical inertness toward acids and solvents, the material remains permanently stable even under harsh environmental conditions.
Specific advantage: Unlike softer fluoropolymers, PVDF offers significantly higher cut resistance and mechanical hardness. This makes it the material of choice for protecting sensors and cables in vibrating or moving systems.
Product Specifications for Thin-Wall PVDF Heat-Shrink Tubing
This transparent, high-performance tubing is optimized for protecting solder joints, terminals, and sensors. It provides a sturdy, armor-like sheath with minimal space requirements.
| Parameters | Technical Value |
|---|---|
| Material | PVDF (polyvinylidene fluoride) |
| Shrinkage ratio | 2:1 |
| Continuous operating temperature | −55 °C to +175 °C |
| Shrinkage temperature | approx. +160 °C to +175 °C |
| Tensile strength | approx. 45 N/mm² (very high) |
| Dielectric strength | 11 kV/mm |
| Flammability | self-extinguishing |
Technical Comparison Table: Focus on PVDF
| Property | PVDF (Kynar) | PTFE (Teflon) | Polyolefin |
|---|---|---|---|
| Mechanical Hardness | Very high | Low | Medium |
| Max. Temperature | +175 °C | +260 °C | +135 °C |
| Abrasion resistance | Excellent | Medium | Good |
| Transparency | Highly Transparent | Milky/Opaque | Variable |
| Shrinkage temperature | approx. +175 °C | approx. +340 °C | approx. +120 °C |
Do you have any questions about our product line:
PVDF heat-shrink tubing (Kynar®)
PVDF heat-shrink tubing (Kynar®)
Processing and Thermal Activation of Kynar® Hoses
Installing PVDF heat-shrink tubing requires a controlled heat input. Since the shrinkage process is fully complete at approximately 175 °C, the temperature must be maintained precisely to ensure uniform wall thickness.
- Heat sources: We recommend temperature-controlled hot-air blowers or infrared heat shrink tools.
- Bend radius: For thin-walled PVDF assemblies, the minimum bend radius should be 3 to 5 times the outer diameter to prevent kinks.
Precision Cutting and Delivery Formats
ROTIMA supplies PVDF heat-shrink tubing in standard 1.22-meter lengths or as custom-cut lengths. Thanks to our specialized cutting technology, we can ensure burr-free edges and extremely tight tolerances with this tough material.
| Performance | ROTIMA Specification |
|---|---|
| Delivery form | 1.22-meter lengths / Custom lengths |
| Cutting Service | Available in lengths starting at 3 mm |
| Diameter range | 1.2 mm to 51.0 mm |
Industry-Specific Applications for PVDF
Aerospace
Protection of wiring harnesses against abrasion and aggressive operating fluids such as fuels and hydraulic oils. High mechanical strength combined with low weight is crucial here.
Medical Technology
Coating for surgical instruments and probes. PVDF provides the necessary chemical resistance to sterilants while also protecting against mechanical wear during use.
Automotive Industry and Sensor Technology
Protection for temperature sensors and lambda sensors in the engine compartment. PVDF provides long-term resistance to stone chips and vibrations and ensures electrical insulation even under high temperatures.
Chemical Industry
Use in environments with high acid exposure. PVDF tubing serves as a robust barrier for measurement cables in these environments and prevents corrosion damage to the primary insulation.
Do you have any questions about our product line:
PVDF heat-shrink tubing (Kynar®)
PVDF heat-shrink tubing (Kynar®)
Types and Varieties of PVDF Heat-Shrink Tubing (Kynar®)
The specifications of PVDF heat-shrink tubing—often known on the market under the brand name Kynar®—are critical for applications that require high mechanical toughness combined with chemical resistance. Based on our application-specific findings, PVDF bridges the gap between highly flexible polyolefins and extremely rigid PEEK solutions. Our engineers at ROTIMA classify PVDF variants primarily based on their mechanical modulus (flexible to semi-rigid) as well as their certification for aerospace and defense applications. Choosing the wrong hardness grade can result in either insufficient kink protection or material failure under dynamic loads.
Medical-Grade PVDF (Precision Medical Technology)
From a technical project management perspective, this variant is designed for instruments that come into direct contact with disinfectants. Our specialists recommend this type for surgical handles or probes, as it is significantly more abrasion-resistant than silicone. It solves the problem of mechanical wear caused by frequent use and sterilization.
| Parameter | Specific value | Technical Classification |
|---|---|---|
| Conformity | FDA / USP Class VI | Biocompatible |
| Tactile feel | Smooth / Non-porous | Hygienic Design |
| Abrasion resistance | Extremely high | Protection Against Instrument Wear |
| Chemical Resistance | Stable in the presence of alcohols | Disinfectant-resistant |
PVDF-ESD (Special Antistatic Version)
ROTIMA AG’s project experience shows that standard Kynar® can build up static charges in ATEX environments. This variant has been modified to be volumetrically conductive. It solves the problem of sparking in fuel systems or during the conveyance of combustible powders. Without this specialized modification, there would be a risk of explosion due to static discharge.
| Parameters | Specific value | Technical Classification |
|---|---|---|
| Surface resistance | ＜ 10^6 ohms | Electrostatic Discharge (ESD) |
| Field of application | ATEX Zones | Explosion protection |
| Color | Black (conductive) | Safety Labeling |
| Chemical Resistance | Preserved | Preserving the Benefits of PVDF |
PVDF Heavy-Wall (The Armored Version)
For this configuration, our engineers recommend an increased wall thickness for use in heavy machinery or offshore applications. The operating principle is based on a solid material barrier that protects against impact and shock. This variant is often used as a retrofit solution to retroactively armor existing cable connections against extreme environmental conditions.
| Parameter | Specific value | Technical Classification |
|---|---|---|
| Wall Thickness (written) | up to 1.5 mm | Mechanical Armor |
| Impact resistance | High | Protection against physical impact |
| Operating environment | Offshore / Heavy Duty | Corrosion & Impact Protection |
| UV Stability | Absolutely true | Does not fade in the sun |
PVDF Retrofit Spool (Lifecycle Solution)
For continuous production in cable assembly, we supply PVDF tubing on large spools. Technical validation by ROTIMA confirms that this format reduces waste by up to 15% in large-scale projects. It solves the problem of inefficient handling of meter-length pieces in industrial control panel construction.
| Parameter | Specific value | Technical Classification |
|---|---|---|
| Delivery form | Continuous on spools | Process-Optimized |
| Constant Diameter | High-precision | Suitable for vending machines |
| Economic efficiency | High | Minimizing Scrap |
PVDF Flexible (Adaptive Insulation)
Our engineering staff recommends this option when Kynar® chemical resistance is required, but the component must retain a certain degree of flexibility. Unlike the semi-rigid version, this hose is modified to allow for cable bundling without causing the line to become rigid. This solves the problem of insulation in tight installation spaces, such as those found in avionics.
| Parameter | Specific value | Technical Classification |
|---|---|---|
| Material Properties | Flexible | Focus: Installation & Dynamics |
| Wall thickness | Thin-walled | Space-saving insulation |
| Longitudinal shrinkage | max. +/- 10% | High dimensional accuracy |
| Dielectric Quality | approx. 30 kV/mm | Excellent Insulation |
| Surface energy | Low | Good cleanability |
| Fungal resistance | 0 degrees (per MIL) | No biological growth |
| Color | Transparent / Black | Identification & Protection |
PVDF Semi-Rigid (The Mechanical Armor)
This variant is the standard high-performance product for protecting solder joints and plug connections. The technical department at ROTIMA AG emphasizes the extremely high surface hardness of this type, which provides mechanical protection that comes very close to that of metal. The operating principle is based on a rigid molecular structure that does not soften even when exposed to heat up to +175 °C. It solves the problem of mechanical abrasion in vibrating systems.
| Parameters | Specific value | Technical Classification |
|---|---|---|
| Material Properties | Semi-rigid | Focus: Maximum Abrasion Protection |
| Continuous operating temperature | -55 °C to +175 °C | High thermal resistance |
| Shrinkage temperature | approx. +175 °C | Precise heat application is necessary |
| Tensile strength | 35 - 50 MPa | High mechanical reserve |
| Flammability | UL 224 VW-1 | Self-extinguishing |
| Chemical Resistance | Very high | Resistant to fuels/acids |
| Transparency | Crystal Clear | Visual Inspection of Solder Joints |
| Standards | VG 95343 / MIL-Spec | Defense Technology Standard |
PVDF Thin-Wall (Micro-Insulation)
Based on our application-specific findings, modern telecommunications sensors require insulation layers that add virtually no mass. This thin-walled variant offers the chemical advantages of Kynar® with minimal increase in diameter. It solves the problem of signal interference caused by excessively thick dielectrics in high-frequency applications.
| Parameter | Specific value | Technical Classification |
|---|---|---|
| Wall thickness (min.) | 0.10 mm and up | Focus: Miniaturization |
| Dielectric constant | approx. 8.0 | Dielectric Constant |
| Weight | Minimal | Weight-Optimized for Aviation |
PVDF-UHP (Ultra-High-Purity for Cleanrooms)
In semiconductor manufacturing and process engineering, PVDF tubing has proven to be a cost-effective alternative to PFA, provided that temperatures do not exceed +150 °C. Technical validation by ROTIMA confirms that this type has extremely low outgassing rates. It solves the problem of ion contamination in wet chemical processes.
| Parameter | Specific value | Technical Classification |
|---|---|---|
| Degree of purity | Ultra-High Purity | Minimized Particles |
| Extraction Values | Minimal | Protection Against Contamination |
| Surface | Smooth as glass | Preventing Deposits |
| Field of Application | Semiconductors / Pharmaceuticals | Process Reliability in Cleanrooms |
| Sterilizability | Gamma / Autoclave | Can be used multiple times |
Do you have any questions about our product line:
PVDF heat-shrink tubing (Kynar®)
PVDF heat-shrink tubing (Kynar®)
PVDF Heat-Shrink Tubing (Kynar®):
Technical Specifications and Solutions by Industry
At ROTIMA, we primarily use PVDF (polyvinylidene fluoride) heat-shrink tubing in applications where mechanical reinforcement and chemical protection must be combined. Kynar® is characterized by its exceptional toughness and cut resistance. With a continuous operating temperature of up to +150 °C and its inherent flame resistance, it is the standard for safety-critical insulation in the aerospace and defense industries.
PVDF-Heat Shrink Tubing for Aerospace
In the aviation industry, Kynar® is indispensable due to its extremely thin walls combined with the highest level of abrasion resistance. It protects cable bundles in confined spaces from mechanical chafing and meets the strict fire safety requirements of aviation authorities.
| Parameters | Specifications |
|---|---|
| Material | Polyvinylidene fluoride (PVDF) / Kynar® |
| Shrinkage ratio | 2:1 |
| Operating temperature | −55 °C to +150 °C |
| Shrinkage temperature | approx. +175 °C |
| Chemical Resistance | Resistant to aviation fuels and hydraulic oils |
| Mechanical property | Extremely cut-resistant and abrasion-resistant |
| Approval / Standard | AMS-DTL-23053/8, AS23053/8 |
| Application | Protection of Avionics Cables, Mechanical Armoring |
PVDF-Heat Shrink Tubing for the Automotive Industry
For applications in fuel systems and brake lines, PVDF offers unmatched barrier performance. ROTIMA designs PVDF hoses for sensors that are exposed to constant vibrations and stone chips in the underbody area.
| Parameters | Specifications |
|---|---|
| Material | PVDF |
| Operating temperature | -55 °C to +150 °C |
| Shrinkage temperature | +175 °C |
| Dielectric Strength | approx. 30 kV/mm |
| Chemical Resistance | Excellent against diesel, gasoline, and AdBlue |
| Surface | Semi-rigid, smooth |
| Approval / Standard | RoHS and REACH compliant |
| Application | Protection of Fuel Sensors and Brake System Wiring |
PVDF-Heat Shrink Tubing for the Chemical Industry
In chemical process engineering, PVDF is valued for its resistance to corrosive acids and halogens. Its high mechanical strength makes it the ideal material for protecting measuring instruments in high-flow media.
| Parameters | Specifications |
|---|---|
| Material | PVDF (Kynar®) |
| Shrinkage ratio | 2:1 |
| Chemical Resistance | Resistant to strong acids and oxidizing agents |
| Water resistance | Hydrophobic, low permeability |
| Mechanical property | High dimensional stability |
| Approval / Standard | ISO 9001 |
| Application | Encapsulation of Chemical Sensors, Corrosion Protection |
PVDF-Heat Shrink Tubing for Electrical Engineering
PVDF offers excellent insulating properties combined with high transparency. This allows for visual inspection of solder joints or markings beneath the insulation without sacrificing robust mechanical protection.
| Parameters | Specifications |
|---|---|
| Material | PVDF |
| Shrinkage temperature | +175 °C |
| Operating temperature | up to +150 °C |
| Transparency | Highly transparent (crystal clear) |
| Mechanical property | Semi-rigid (prevents kinking) |
| Approval / Standard | UL 224 VW-1, CSA |
| Application | Insulation of Connections, Protection of Labels |
PVDF-Heat Shrink Tubing for the Semiconductor Industry
In semiconductor manufacturing, PVDF is used because of its purity and minimal outgassing. It is inert to most chemicals used in cleaning and helps maintain cleanroom stability.
| Parameters | Specifications |
|---|---|
| Material | High-purity PVDF |
| Outgassing | Very low |
| Particle Emission | Minimal |
| Chemical Resistance | Resistant to corrosive substances and solvents |
| Shrinkage ratio | 2:1 |
| Approval / Standard | Cleanroom-compatible |
| Application | Protection of Cable Penetrations in Process Chambers |
PVDF Heat-Shrink Tubing for Laboratory Applications
Laboratory technology relies on a combination of chemical neutrality and the ability to sterilize. ROTIMA’s Kynar® tubing protects highly sensitive probes in analytical processes without compromising measurement results due to chemical interactions.
| Parameters | Specifications |
|---|---|
| Material | PVDF |
| Sterilizability | Can be sterilized using gamma radiation or ETO |
| Transparency | Enables visual process monitoring |
| Chemical Resistance | Stable against alcohols and acids |
| Operating temperature | −55 °C to +150 °C |
| Approval / Standard | Compliant with laboratory standards |
| Application | Split Protection for Glass Capillaries, Probe Construction |
PVDF Heat-Shrink Tubing for the Food Industry
In food processing, PVDF is in high demand due to its FDA compliance and resistance to harsh cleaning agents (CIP). Its smooth, hard surface prevents organic residues from adhering to it.
| Parameters | Specifications |
|---|---|
| Material | PVDF (FDA-grade) |
| Authorization | FDA-compliant |
| Physiology | Tasteless and odorless |
| Cleaning | Resistant to hot water and cleaning solutions |
| Surface | Non-stick, very hard |
| Temperature range | Stable up to +150 °C |
| Application | Protective Covers in Filling Systems, Sensor Protection |
PVDF Heat-Shrink Tubing for Mechanical Engineering
In mechanical engineering, PVDF is often used to protect against sharp-edged chips and mechanical abrasion. ROTIMA’s material-specific design ensures that cables are optimally protected against chafing in moving machine parts.
| Parameters | Specifications |
|---|---|
| Material | PVDF |
| Abrasion resistance | Extremely high (comparable to polyamide) |
| Hardness | Shore D 70-80 (semi-rigid) |
| Shrinkage ratio | 2:1 |
| Mechanical property | Very high tensile strength |
| Special feature | Protects against mechanical penetration |
| Application | Cable Protection in CNC Machines, Bearing Locations |
PVDF Heat-Shrink Tubing for Medical Technology
PVDF provides the biocompatibility required for medical instruments. Due to its mechanical rigidity, it is often used to stiffen the tips of catheters or to insulate surgical instruments.
| Parameters | Specifications |
|---|---|
| Material | Medical-Grade PVDF |
| Biocompatibility | Compliant with USP Class VI / ISO 10993 |
| Sterilization | Gamma, ETO, and steam autoclave (limited) |
| Mechanical property | Resistant to bending and dimensionally stable |
| Purity | Free of plasticizers |
| Application | Stiffening elements for catheters, instrument handles |
PVDF Heat-Shrink Tubing for Military and Defense Applications
In defense technology, reliability under the most extreme conditions is paramount. Kynar® hoses from ROTIMA meet strict military specifications for flame resistance and resistance to chemical warfare agents and decontamination agents.
| Parameters | Specifications |
| Material | PVDF (Kynar®) |
| Approval / Standard | MIL-DTL-23053/8, VG 95343 T05 F |
| Flammability | Self-extinguishing, does not drip while burning |
| Mechanical property | Highest mechanical strength |
| Consistency | Resistant to fuels and chemicals |
| Special feature | Protection under extreme combat conditions |
| Application | Cabling in tanks, missiles, and naval vessels |
FAQs by Industry: PVDF Heat-Shrink Tubing (Kynar®)
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Oliver Bürli
Head of Hose Technology, Sales and Product Management
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PVDF Heat-Shrink Tubing (Kynar®)
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