
Valox is a thermoplastic polyester resin that is semi-crystalline and based on polybutylene terephthalate (PBT) and/or polyethylene terephthalate (PET) polymers. It is known for its high strength, heat resistance, and dimensional stability, making it a preferred material in various industries, including aerospace, defence, automotive, and consumer goods. Valox also exhibits excellent chemical resistance and electrical properties. While the surface energy of Valox is not specifically mentioned, it is essential to consider when choosing materials for plastic production projects. High surface energy plastics, such as ABS plastics and polycarbonates, tend to have high molecular attraction, allowing easy bonding with adhesives.
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What You'll Learn

Valox's surface finish and flow
Valox is a semi-crystalline family of thermoplastic polyester resins based on polybutylene terephthalate (PBT) and/or polyethylene terephthalate (PET) polymers. It is highly advantageous for the industrial industry due to its exceptional mechanical strength, chemical resistance, and dimensional stability. Valox offers an outstanding mix of value-added properties for a variety of applications.
Valox 357, for example, has strong chemical and flame-resistant properties with exceptional processability and surface appearance. Its strong chemical and heat resistance makes it ideal for automotive, aerospace, and medical applications. Valox 357 is a non-reinforced, injection-moldable grade resin with high mechanical, thermal, and electrical properties, as well as dimensional stability. It has a high flow in thin sections, resulting in an excellent surface finish.
The Valox family of resins is resistant to a wide range of chemicals, including hydrocarbons, dilute acids and bases, detergents, and aqueous salt solutions. This chemical resistance, combined with its dimensional stability, makes Valox a versatile choice for various applications. Its high strength, stiffness, and flame resistance provide structural integrity for critical applications.
Valox is a preferred material choice for manufacturers seeking durable, flame-resistant solutions in industries such as automotive, electrical, electronics, and consumer goods. Its excellent combination of properties, including high strength, heat resistance, dimensional stability, and chemical resistance, enhances the quality and functionality of consumer goods. Valox is commonly used in household appliances, power tools, personal care products, and various durable goods.
Overall, Valox's high flow in thin sections and excellent surface finish make it a versatile and reliable material for a wide range of applications across multiple industries. Its unique attributes, such as exceptional strength-to-weight ratio, impact resistance, and heat resistance, contribute to its popularity in the aerospace, automotive, and consumer goods sectors.
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Valox's chemical resistance
Valox is the brand name for a family of thermoplastic polyester resins. These resins are semi-crystalline materials based on polybutylene terephthalate (PBT) and/or polyethylene terephthalate (PET) polymers. Valox combines heat and chemical resistance with outstanding electrical properties, processability, and surface appearance.
The Valox family of resins offers high mechanical, thermal, and electrical properties, as well as excellent chemical resistance and dimensional stability. This strong chemical resistance and dimensional stability make Valox a popular choice for a wide range of applications, from automotive and aerospace to consumer goods and electronics.
Valox is known for its exceptional resistance to a variety of chemicals, including:
- Hydrocarbons
- Dilute acids and bases
- Detergents
- Aqueous salt solutions
The chemical resistance of Valox is further enhanced by its ability to form strong chemical bonds with other materials, such as TPU and TPC thermoplastics. This makes Valox a good substrate option for overmolds and a versatile choice for manufacturers seeking durable, flame-resistant solutions.
In addition to its chemical resistance properties, Valox also exhibits high strength, stiffness, and impact resistance, contributing to its overall durability and reliability in demanding environments.
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Valox's heat resistance
Valox is the brand name for a family of thermoplastic polyester resins based on polybutylene terephthalate (PBT) and/or polyethylene terephthalate (PET) polymers. Valox resins are semi-crystalline materials that offer a range of performance-matched grades, each designed for specific applications.
Valox is known for its strong heat resistance, which makes it suitable for various applications in different industries. Its heat resistance is complemented by its strong chemical resistance and dimensional stability. This combination of properties gives Valox versatility and makes it a preferred material in many cases.
One of the commonly mentioned variants of Valox is Valox 357, which has a relative temperature index of -40°F to 284°F. It is a non-reinforced, impact-modified, injection-mouldable grade resin. Valox 357's heat resistance, combined with its high mechanical, thermal, and electrical properties, dimensional stability, and very good processability, makes it a versatile resin used in a wide variety of applications. For instance, it is used in automotive parts, oil and gas, construction, outdoor equipment, fluid handling, electronic displays, lighting, appliances, household goods, and healthcare.
Another variant is Valox 420SEO, which is a glass fibre-reinforced Polybutylene Terephthalate. It is a 30% glass-filled resin with applications in automotive, electrical, and aerospace industries. Valox 420SEO has high flow in thin sections, resulting in an excellent surface finish.
The heat resistance of Valox resins makes them suitable for applications in the aerospace and defence industries, where fire safety regulations are stringent. Valox is also used in the mobility industry, where its heat resistance, combined with its strength-to-weight ratio, impact resistance, and other properties, make it ideal for lightweight construction and various mobility applications.
In summary, Valox's heat resistance, along with its other properties, makes it a versatile and reliable material choice across various industries, including automotive, aerospace, defence, mobility, consumer goods, electrical and electronics, and industrial applications.
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Valox's mechanical properties
Valox is a semi-crystalline family of PBT, PET, and blends with Polycarbonate (PC). It offers an outstanding mix of properties for a variety of applications. Valox resin formulations include performance-matched grades designed to provide application-specific property profiles.
Valox has exceptional mechanical properties, including high strength and stiffness, providing structural integrity for critical applications. Its mechanical strength, chemical resistance, and dimensional stability make it a preferred material choice for various industries.
In the healthcare industry, Valox is advantageous due to its exceptional chemical resistance, sterilization compatibility, and dimensional stability. It is a reliable material choice for medical devices, equipment housings, and components requiring durability, resistance to harsh chemicals, and compatibility with sterilization processes.
Valox also offers significant advantages in the consumer goods industry due to its high strength, heat resistance, dimensional stability, and chemical resistance. It enhances the quality and functionality of consumer goods while meeting safety and performance requirements. Common applications include household appliances, power tools, personal care products, and various durable goods.
Additionally, Valox is highly beneficial in the industrial industry, providing exceptional mechanical strength, chemical resistance, and dimensional stability. It is ideal for robust and reliable components in demanding industrial environments, such as heavy machinery, equipment housings, storage containers, and structural elements.
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Valox's electrical properties
Valox is a semi-crystalline family of PBT, PET, and blends with polycarbonate (PC). It is a registered trademark of SABIC, a chemical manufacturing company. Valox boasts a unique set of characteristics that make it suitable for a wide range of applications.
Valox possesses high mechanical, thermal, and electrical properties. It has excellent electrical insulation properties, making it a preferred material for electrical applications. Its high electrical resistance makes it suitable for use in electrical connectors, switches, enclosures, and device housings. Valox provides reliable performance and enhances the safety and efficiency of electrical systems.
The material also has very good processability, offering a high flow in thin sections and an excellent surface finish. This makes it ideal for applications requiring a smooth and even surface, such as electrical components. Valox's high mechanical strength and stiffness provide structural integrity for critical applications. Its dimensional stability ensures that it maintains its shape and dimensions even under stress or varying temperatures.
Additionally, Valox exhibits strong chemical resistance. It is resistant to a variety of chemicals, including hydrocarbons, dilute acids and bases, detergents, and most aqueous salt solutions. This makes it suitable for use in electrical components that may be exposed to harsh chemicals. Valox's flame resistance further enhances its safety profile, making it a reliable choice for electrical applications where fire safety is a concern.
Overall, Valox's electrical properties, combined with its mechanical strength, dimensional stability, and chemical and flame resistance, make it a versatile and reliable material for electrical applications. It is commonly used in the electrical and electronics industries, contributing to the performance and longevity of electrical systems and components.
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Frequently asked questions
Valox is a Polybutylene Terephthalate (PBT) plastic with strong chemical and heat resistance. It is a thermoplastic polyester resin with high mechanical, thermal, and electrical properties.
Valox offers high strength, stiffness, and dimensional stability. It has excellent surface finish characteristics and is highly flame retardant. These properties make it a preferred material in the aerospace, automotive, and consumer goods industries.
Valox is commonly used in the aerospace and defence industries due to its flame resistance, lightweight construction, and dimensional stability. It is also used in automotive parts, oil and gas equipment, construction, and consumer goods such as household appliances and power tools.
While I cannot find a definitive answer, Valox's strong chemical resistance and high molecular attraction suggest that it may be a high surface energy plastic. High surface energy plastics tend to have strong molecular attraction, which facilitates bonding with other materials.







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