Easy to Process and Customize
TPX offers unique properties for a wide range of applications. These include:
- A high melting point
- Low water absorption rate
- Low surface tension
- Excellent peeling characteristics
- High transparency
As a truly versatile and valuable material it offers outstanding performance while meeting the rigorous demands of various industries. At Goodfellow, we stock TPX in pellet form, allowing for easy processing and customization, whether it's being used for steam sterilization, optical components, chemical-resistant containers or gas-permeable packaging.
Product Benefits
What makes TPX Polymethylpentene a truly stand-out material has to be its long list of outstanding properties which make it ideal across a range of applications including:
High Melting Point
With a melting point ranging from 220 to 240°C, TPX boasts excellent thermal stability. This characteristic makes it suitable for items that require steam sterilization, as it retains its structural integrity even under extreme heat conditions.
Low Surface Tension and Excellent Peeling Characteristics
TPX possesses a low surface tension of just 24mN/m, which contributes to its unique peeling characteristics. These properties make it particularly well-suited for release materials in various applications, such as labels, tapes and protective films.
High Gas Permeability
Its high gas permeability makes TPX ideal for applications that require efficient gas exchange with its permeability ensures optimal performance in these applications.
Low Water Absorption Rate
With a low water absorption rate, TPX maintains its stability and performance even in the presence of moisture. This quality is especially important in applications where resistance to water or humidity is required.
Good Chemical Resistance
It demonstrates remarkable resistance to acids, alkalis and alcohol. This quality makes it highly suitable for manufacturing a range of container types, experimental apparatus and analytical cells that may come into contact with different substances.
Lowest Density Among Thermoplastic Polymers
TPX stands out as one of the lightest thermoplastic polymers available, with a density of only 0.83 g/cm3. This lightweight characteristic not only contributes to ease of handling but also makes TPX an environmentally friendly choice.
High Transparency and Low Refractive Index
Thanks to its high transparency and a haze level of less than 5%, TPX offers exceptional optical properties. Its low refractive index puts it on par with traditional materials like glass or acrylic, making it an excellent alternative in applications where transparency is essential.
Choosing the Right Products
Our industry-leading Technical Solutions team will identify the right grade of TPX for your unique needs. Whether it’s for existing manufacturing applications or research and development, they will give you the benefit of their unrivaled advice which includes expertise gained working with leading names in industries as varied as electronics, aerospace, automotive, optics and medical.
Our range of TPX comply with European Directives 2015/863/EU (RoHS 3) and 2000/53/EC (ELV), ensuring their environmental friendliness. We also hold certifications for ISO 9001, EN 9100, ISO 14001, and ISO 45001, demonstrating our dedication to quality and safety.
TPX Product Range
- MX002: A low rigidity grade for injection molding and extrusion
- MX002O: A low rigidity grade for extrusion for food applications (except EU)
- MX004/MX004XB: A medium rigidity grade for injection molding and extrusion, available in clear or blue tint
- RT18/RT18XB: A high rigidity grade for injection molding, available in clear or blue tint
- RT31/RT31XB: A high rigidity grade for injection molding with less odor, available in clear or blue tint
- DX231: A high rigidity grade for coating
- DX310: A low rigidity grade for coating
- DX350: A high rigidity grade for coating
- DX820: A high rigidity grade for coating and additive with high flow
- DX845: A high rigidity grade for extrusion
Popular TPX™ Products
- RT31 PMP Rod TPX RT31 PMP rod; high clarity, low density, and enhanced strength for machined, transparent, chemically/heat‑resistant parts. Used in spectroscopic components, transparent flow cells, and lightweight dielectric elements.each
Starting at $335.00
In stockDiscounts applied for volume purchasesTPX RT31 PMP rod; high clarity, low density, and enhanced strength for machined, transparent, chemically/heat‑resistant parts. Used in spectroscopic components, transparent flow cells, and lightweight dielectric elements. - RT31 PMP Granules RT31 PMP granules; transparent, heat‑resistant, food‑contact grade with excellent releasability and dimensional stability. Used in food containers, optical packaging, and molded tools; suitable for labs and analytical setups.each
Starting at $223.00
In stockDiscounts applied for volume purchasesRT31 PMP granules; transparent, heat‑resistant, food‑contact grade with excellent releasability and dimensional stability. Used in food containers, optical packaging, and molded tools; suitable for labs and analytical setups. - RT18XB PMP Granules RT18XB PMP granules; enhanced stability and release for high‑modulus formulations. Used in LED molds, thin‑wall packaging, and complex release films; smoother demolding, clearer surfaces, and high‑fidelity replication in advanced processing.each
Starting at $223.00
In stockDiscounts applied for volume purchasesRT18XB PMP granules; enhanced stability and release for high‑modulus formulations. Used in LED molds, thin‑wall packaging, and complex release films; smoother demolding, clearer surfaces, and high‑fidelity replication in advanced processing. - RT18 PMP Rod RT18 PMP rod; transparent, low‑density, chemically resistant polymethylpentene for precision, optically stable parts. Used for optical holders, chemically resistant lab fittings, and dielectric components in electronic systems.each
Starting at $89.00
In stockDiscounts applied for volume purchasesRT18 PMP rod; transparent, low‑density, chemically resistant polymethylpentene for precision, optically stable parts. Used for optical holders, chemically resistant lab fittings, and dielectric components in electronic systems. - RT18 PMP Granules RT18 PMP granules; high‑modulus, heat‑resistant with excellent release and low moisture absorption. Used for LED molds, packaging, release films, caps/tubes, FPC backing, and synthetic leather release paper; clear surfaces and precise replication.each
Starting at $223.00
In stockDiscounts applied for volume purchasesRT18 PMP granules; high‑modulus, heat‑resistant with excellent release and low moisture absorption. Used for LED molds, packaging, release films, caps/tubes, FPC backing, and synthetic leather release paper; clear surfaces and precise replication. - RT18 PMP Film RT18 PMP film (TPX); high chemical resistance, <0.01% moisture uptake, >90% visible transmittance, low εr (~2.2), thermal stability to 200 °C. Suited for spectrophotometry windows, analytical instruments, dielectric testing, and cleanroom microfabrication.each
Starting at $155.00
In stockDiscounts applied for volume purchasesRT18 PMP film (TPX); high chemical resistance, 90% visible transmittance, low εr (~2.2), thermal stability to 200 °C. Suited for spectrophotometry windows, analytical instruments, dielectric testing, and cleanroom microfabrication. - RT18 PMP Disk TPX RT18 PMP disk; transparent polymethylpentene with low density, high chemical resistance, and optical stability. Used as optical windows, microfluidic substrates, and lightweight shields in medical, analytical, and optical instruments.each
Starting at $284.00
In stockDiscounts applied for volume purchasesTPX RT18 PMP disk; transparent polymethylpentene with low density, high chemical resistance, and optical stability. Used as optical windows, microfluidic substrates, and lightweight shields in medical, analytical, and optical instruments. - PMP Film PMP film (TPX) offers 94% optical transmission, thermal stability to ~170 °C, chemical resistance, and low shrinkage for micro‑optics, photonics, biosensors, organ‑on‑chip devices, and nanostructure replication research.each
Starting at $179.00
In stockDiscounts applied for volume purchasesPMP film (TPX) offers 94% optical transmission, thermal stability to ~170 °C, chemical resistance, and low shrinkage for micro‑optics, photonics, biosensors, organ‑on‑chip devices, and nanostructure replication research. - MX004 PMP Rod MX004 PMP rod offers machinability, clarity, and thermal‑chemical endurance for precision mounts, autoclavable fixtures, and structurally stable optical or sensor components.each
Starting at $199.00
In stockDiscounts applied for volume purchasesMX004 PMP rod offers machinability, clarity, and thermal‑chemical endurance for precision mounts, autoclavable fixtures, and structurally stable optical or sensor components. - MX004 PMP Granules MX004 PMP granules provide transparency, steam resistance, and chemical durability for food containers, cosmetic tubes, release films, and membrane or LED processing aids.each
Starting at $223.00
In stockDiscounts applied for volume purchasesMX004 PMP granules provide transparency, steam resistance, and chemical durability for food containers, cosmetic tubes, release films, and membrane or LED processing aids. - MX004 PMP Film MX004 PMP film is a transparent, chemically resistant TPX film with high oxygen permeability and thermal stability for microfluidics, biosensing, optical components, and prototyping.each
Starting at $114.00
In stockDiscounts applied for volume purchasesMX004 PMP film is a transparent, chemically resistant TPX film with high oxygen permeability and thermal stability for microfluidics, biosensing, optical components, and prototyping. - MX004 PMP Disk MX004 PMP disk provides high optical clarity, chemical durability, and heat resistance for optical windows, sensor interfaces, and microfluidic or imaging components.each
Starting at $215.00
In stockDiscounts applied for volume purchasesMX004 PMP disk provides high optical clarity, chemical durability, and heat resistance for optical windows, sensor interfaces, and microfluidic or imaging components. - MX004 PMP Coil MX004 PMP coil offers ~94% transparency, low density, strong chemical resistance, and thermal stability to ~170 °C for optical films, microfluidic substrates, and gas‑permeable research devices.each
Starting at $291.00
In stockDiscounts applied for volume purchasesMX004 PMP coil offers ~94% transparency, low density, strong chemical resistance, and thermal stability to ~170 °C for optical films, microfluidic substrates, and gas‑permeable research devices. - MX002 PMP Rod MX002 PMP rod is a machinable, transparent, heat‑resistant polymer rod with chemical and steam resistance for optical holders, sensor housings, and sterilizable structural parts.each
Starting at $104.00
In stockDiscounts applied for volume purchasesMX002 PMP rod is a machinable, transparent, heat‑resistant polymer rod with chemical and steam resistance for optical holders, sensor housings, and sterilizable structural parts. - MX002 PMP Granules MX002 PMP granules are flexible, gas‑permeable, chemically resistant pellets used for food wraps, caps, release films, and heat‑resistant packaging or electronics components.each
Starting at $223.00
In stockDiscounts applied for volume purchasesMX002 PMP granules are flexible, gas‑permeable, chemically resistant pellets used for food wraps, caps, release films, and heat‑resistant packaging or electronics components. - MX002 PMP Film MX002 PMP film is a high‑purity, thermally stable, chemically resistant TPX film with low dielectric constant and high gas permeability for gas separation, membrane development, microfluidics, and optical windows.each
Starting at $160.00
In stockDiscounts applied for volume purchasesMX002 PMP film is a high‑purity, thermally stable, chemically resistant TPX film with low dielectric constant and high gas permeability for gas separation, membrane development, microfluidics, and optical windows. - MX002 PMP Filament MX002 PMP filament is a transparent, chemically resistant, heat‑stable fibre for filtration, fibre‑based sensors, hollow‑fibre membranes, and permeable or optical fibre components in biomedical and industrial systems.each
Starting at $264.00
In stockDiscounts applied for volume purchasesMX002 PMP filament is a transparent, chemically resistant, heat‑stable fibre for filtration, fibre‑based sensors, hollow‑fibre membranes, and permeable or optical fibre components in biomedical and industrial systems. - MX002 PMP Disk MX002 PMP disk provides high clarity, thermal resilience, and chemical resistance for sterilizable optical covers, precision windows, and signal‑transparent components in optical, microfabrication, and laboratory instrumentation.each
Starting at $148.00
In stockDiscounts applied for volume purchasesMX002 PMP disk provides high clarity, thermal resilience, and chemical resistance for sterilizable optical covers, precision windows, and signal‑transparent components in optical, microfabrication, and laboratory instrumentation. - MX002 PMP Coil MX002 PMP coil is a lightweight, transparent film with high heat resistance, low refractive index, and strong chemical and steam resistance, offering low dielectric behavior and gas permeability for release films, packaging sheets, and sterilizable optical or biomedical films.each
Starting at $164.00
In stockDiscounts applied for volume purchasesMX002 PMP coil is a lightweight, transparent film with high heat resistance, low refractive index, and strong chemical and steam resistance, offering low dielectric behavior and gas permeability for release films, packaging sheets, and sterilizable optical or biomedical films. - MX001 PMP Granules MX001 PMP granules are low‑density, chemically inert polymer granules for mold release, thermal barriers, and experimental polymer studies.each
Starting at $225.00
In stockDiscounts applied for volume purchasesMX001 PMP granules are low‑density, chemically inert polymer granules for mold release, thermal barriers, and experimental polymer studies.
Applications
Steam Sterilization Applications
Thanks to its high melting point and low water absorption rate, TPX finds extensive use in items requiring steam sterilization, such as medical equipment and laboratory tools.
Gas-Permeable Packaging and Microwave Components
High gas permeability makes TPX ideal for use in applications requiring efficient gas exchange, such as packaging materials for perishable goods and components used in microwave systems.
Chemical-Resistant Containers
TPX demonstrates remarkable resistance to acids, alkalis and alcohol, making it an excellent choice for manufacturing cosmetic containers, experimental apparatus and analytical cells that need to withstand exposure to various chemical substances.
Release Materials
With its low surface tension and excellent peeling characteristics, TPX is ideal for release materials. It has applications in various industries where easy removal of adhesives or coatings is necessary, including labels, tapes, and protective films.
Optical and Transparent Components
As exceptional substitute for traditional materials like glass or acrylic, TPX is used in optical lenses, light fixtures, display screens, windows and other components where clarity and light transmission are critical.
Why Goodfellow?
- No minimum order
- Over 170,000 advanced materials and 5,000 reference materials
- Supply Chain Management:
sourcing custom materials for your needs - Materials customization:
Custom parts for prototyping | Full product modification | Micro-machining | Microfabrication | Rolling - Free and fast delivery:
Worldwide shipping and customs clearance, to your door. All orders are dispatched within 48 hours - Commercial arrangements:
Call off orders | Buffer stock | Fixed and contract pricing* | Discounts for increased volumes - We help you innovate into the future.
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