Mitsubishi Chemical Corporation
Polymer Compounds Business Group
Medical thermoplastic elastomers
ABOUT
Zelas™ is a functional resin compound designed for medical device and pharmaceutical packaging.
A styrene-based elastomer type (TPS) with good rubber elasticity and sealing properties.
Olefin-based elastomer type (TPO) using a unique reactor TPO,
There is an amorphous olefin type (CP) that offers high transparency and low adsorption performance.
We also carry medical-grade polyurethane manufactured in the United States.
FEAUTURE
Features of Zelas™ TPS
■Resin Products Medical Compound Zelas™ is used for packaging medical devices and pharmaceuticals.
It is formulated with a specific blend in mind.
■ Zelas™ has high drug hygiene properties and is used as a material for pharmaceutical packaging and medication dispensing devices.
It has been in use for many years.
■The low-hardness grade of the styrene-based elastomer type Zelas™ TPS is,
It has good rubber elasticity and sealing properties, making it suitable as a sealing component for pharmaceutical packaging materials.
- Injection molding
- Medical tubing
- Medical rubber stopper
- Packing/Syringe Gasket
TPS (injection)
Zelas™ TPS PJ Series
Medical-grade styrene-based thermoplastic elastomer suitable for injection molding.
item | Test method | unit | PJ4300C | PJ5300C | PJ6300C | PJ7300C | PJ8300C | PJ9300C |
Density | ISO 1183 reference | g/ cm³ | 0.89 | 0.89 | 0.89 | 0.89 | 0.89 | 0.89 |
MFR (230℃, 21N) | ISO 1133 reference | g/10min | 0.4 | 4 | 6 | 8 | 16 | 12 |
Duro hardness A (after 15 seconds) | ISO 7619 reference | – | 33 | 45 | 57 | 67 | 78 | 90 |
Tensile strength at break | ISO 37 Reference | MPa | 9 | 10 | 13 | 16 | 16 | 21 |
Elongation during cutting | 1A Test specimen | % | 1000 | 950 | 900 | 900 | 850 | 750 |
Compression permanent set | ISO 815 reference | % | 35 | 40 | 42 | 47 | 50 | 56 |
Molding shrinkage rate (MD direction) | MCC Test Method | % | 2.7 | 2.0 | 1.6 | 1.3 | 1.2 | 1.3 |
Molding shrinkage rate (TD direction) | 3 mmt | % | 0.8 | 0.9 | 1.0 | 1.0 | 1.1 | 1.2 |
Melting peak temperature | DSC | ℃ | 148 | 148 | 150 | 151 | 152 | 154 |
color | – | – | translucent | |||||
Sterilization method example * 1 | Autoclave, EOG | |||||||
Application example | Injection molded parts | |||||||
Features | Standard Grade Injection Molding | |||||||
*The above figures are representative values and not guaranteed values.
*The product name on the packaging, delivery slip, SDS, etc., of this product will be "Zelas™".
*The above physical properties and other information are subject to change without notice.
*Please evaluate and judge the quality suitability, safety, and legality of the product for your intended use.
*1 Please evaluate and judge the suitability of your product for sterilization methods based on your own experience.
Issued:Aug.2024
TPS (Medical Tubing)
Zelas™ TPS MP Series
Medical-grade styrene-based thermoplastic elastomer compatible with medical tubing.
item | Test method | unit | MP6201C | MP7202C | MP8201C | MP7205C | MP8205C |
Density | ISO 1183 reference | g/ cm³ | 0.89 | 0.89 | 0.89 | 0.89 | 0.89 |
MFR (230℃, 21N) | ISO 1133 reference | g/10min | 3 | 3 | 2 | 9 | 7 |
Duro hardness A (after 15 seconds) | ISO 7619 reference | – | 56 | 68 | 78 | 68 | 78 |
Tensile strength at break | ISO 37 Reference | MPa | 17 | 11 | 15 | 11 | 12 |
Elongation during cutting | 1A Test Specimen | % | 940 | 910 | 760 | 830 | 870 |
Molding shrinkage rate (MD direction) | MCC Test Method | % | 5.0 | 2.7 | 1.9 | 2.1 | 1.7 |
Molding shrinkage rate (TD direction) | % | 0.1 | 0.6 | 0.9 | 0.4 | 0.7 | |
Melting peak temperature | DSC | ℃ | 137 | 158 | 132 | 133 | 137 |
Haze (2mm thick) | ISO 14782 reference | % | 43 | 6 | 18 | 4 | 5 |
color | translucent | ||||||
Sterilization method example * 1 | EOG | autoclave | EOG | ||||
Application example | Medical tubing | ||||||
Features | Softener-free | Softener-free | |||||
*The above figures are representative values and not guaranteed values.
*The product name on the packaging, delivery slip, SDS, etc., of this product will be "Zelas™".
*The above physical properties and other information are subject to change without notice.
*Please evaluate and judge the quality suitability, safety, and legality of the product for your intended use.
*1 Please evaluate and judge the suitability of your product for sterilization methods based on your own experience.
Issued:Oct.2025
TPS (Medical rubber stopper)
Zelas™ TPS Medical Rubber Stopper Series
Medical-grade styrene-based thermoplastic elastomer compatible with medical rubber stoppers
item | Test method | unit | T3348GR4 | MT3302G | PJ4300G | MT3302G-JB2 |
|---|---|---|---|---|---|---|
Density | ISO 1183 reference | g/cm³ | 0.89 | 0.90 | 0.89 | 0.90 |
MFR (230℃, 21N) | ISO 1133 reference | g/10min | - | 8.0 | 0.4 | - |
MFR (230℃, 49N) | ISO 1133 reference | g/10min | 15 | - | - | 52 |
Duro hardness A (after 15 seconds) | ISO 7619 reference | – | 33 | 27 | 33 | 28 |
Tensile strength at break | ISO 37 Reference | MPa | 6 | 4 | 9 | 5 |
Elongation during cutting | % | 780 | 730 | 1000 | 570 | |
Compression permanent set | ISO 815 reference | % | 40 | 30 | 35 | 26 |
Melting peak temperature | DSC | ℃ | 150 | 143 | 148 | - |
color | gray | |||||
Sterilization method*1 | Autoclave, EOG | |||||
Application example | Medical rubber stopper | |||||
Features | Needle retention | ★★ | ★★★ | ★★ | ★★★ | |
Leak-proof | ★ | ★★ | ★★★ | ★★★★ | ||
*The above figures are representative values and not guaranteed values.
*The product name on the packaging, delivery slip, SDS, etc., of this product will be "Zelas™".
*The above physical properties and other information are subject to change without notice.
*Please evaluate and judge the quality suitability, safety, and legality of the product for your intended use.
*1 Please evaluate and judge the suitability of your product for sterilization methods based on your own experience.
Issued:Oct.2025
TPS (Packing/Syringe Gasket)
Zelas™ TPS
Medical-grade styrene-based thermoplastic elastomer suitable forpacking and syringe gaskets.
item | Test method | unit | T331C | PJ4301C | PJ5302B | PJ6302B |
Density | ISO 1183 reference | g/ cm³ | 0.89 | 0.89 | 0.89 | 0.89 |
MFR (230℃, 49N) | ISO 1133 reference | g/10min | 7 | 20 | 6 | 16 |
Duro hardness A (after 15 seconds) | ISO 7619 reference | – | 24 | 40 | 50 | 55 |
Tensile strength at break | ISO 37 Reference | MPa | 3 | 6 | 13 | 17 |
Elongation during cutting | % | 700 | 760 | 880 | 880 | |
Compression permanent set | ISO 815 reference | % | 34 | 46 | 36 | 42 |
Haze (2mm thick) | ISO 14782 reference | % | - | 65 | - | - |
Melting peak temperature | DSC | ℃ | 149 | 149 | 151 | 119 |
color | translucent | black | ||||
Sterilization method example * 1 | Autoclave, EOG | |||||
Application example | Medical device packing | Syringe gasket | ||||
Features | low hardness | Leak-proof | ||||
*The above figures are representative values and not guaranteed values.
*The product name on the packaging, delivery slip, SDS, etc., of this product will be "Zelas™".
*The above physical properties and other information are subject to change without notice.
*Please evaluate and judge the quality suitability, safety, and legality of the product for your intended use.
*1 Please evaluate and judge the suitability of your product for sterilization methods based on your own experience.
Issued:Oct.2025
Recommended molding conditions
For the export of chemical products, we will check the regulations of each country and then respond regarding whether or not we can provide them.
Please be sure to include information such as the exporting country.
Please note that for some products, we may not be able to offer or provide a different grade.
CASE
Application example
Drug delivery tubing
Medical rubber stopper
Gaskets ＆ Seals
CONTACT
Before you start worrying about selecting and developing resin materials
Please contact Mitsubishi Chemical.
Polymer Compounds Business Group Products
Useful resources are available here.
Please feel free to ask any questions.
Please contact us.
The above information is based on the latest available information as of the date of creation and may be revised in the future based on new information.
Furthermore, this information is provided as general technical information and reference material, and we do not guarantee the accuracy or completeness of the content.
Product performance and characteristics may vary depending on usage conditions, processing conditions, etc. The final decision regarding applicability and design is the customer's responsibility.
We will check the regulations of each country regarding the export of chemical products and then respond whether or not we can provide them. Please be sure to include information such as the exporting country.
Depending on the product, we may suggest a different grade or may not be able to provide the product at all.
Mitsubishi Chemical Corporation
Polymer Compounds Business Group
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