Polymer Additive

RPU 70

RPU 70 is a versatile, high-strength resin known for its functional toughness, ductility, and stiffness, making it suitable for a variety of demanding applications.

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Material Overview

With an ultimate tensile strength of 35 MPa and properties comparable to ABS, RPU 70 is ideal for consumer products, automotive, and industrial use cases where durability, biocompatibility, and chemical resistance are key. RPU 70 is UL 94 HB flame-rated and has passed ISO 10993-5 and -10 biocompatibility requirements, making it a strong, safe, and reliable choice for various applications.

Key Features:

High Strength and Toughness: Provides robust mechanical properties, with 35 MPa tensile strength for parts requiring durability and resilience.
Flame Resistance: UL 94 HB flame-rated, suitable for applications where fire safety is important.
Biocompatibility: Certified according to ISO 10993-5 and -10 standards, making it safe for indirect skin contact applications.
Chemical Resistance: Exhibits low mass gain when exposed to many household chemicals and industrial fluids, enhancing part longevity and performance.

Color Option: Black

Property	ASTM	Metric Units
Tensile Strength	D638M	45 ± 2 MPa
Modulus of Elasticity, Youngs Modulus	D638M	1,900 ± 200 MPa
Elongation at Break (%)	D638M	100 ± 20%
Flexural Strength	D790M	62 ± 9 MPa
Flexural Modulus	D790M	1,800 ± 300 MPa
IZOD Impact (notched)	D256A	22 ± 1 J/m
Heat Deflection Temperature at .45 MPa/66 psi (°C)	D648	70°C

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Applications

Versatile, High-strength

Housings: Durable enough for consumer-facing housings that need strength, toughness, and a smooth finish, perfect for electronics and appliances.
Automotive Components: Suitable for automotive parts requiring toughness and moderate heat resistance, such as interior components and casings.
Industrial Products: Ideal for parts exposed to moderate heat and chemicals, ensuring reliability in tough industrial environments.

Advantages:

Superior Strength and Ductility: Combines stiffness and flexibility for parts that need to withstand stress and repeated use.
Fire Safety Compliance: UL 94 HB flame rating enhances safety in applications where fire resistance is critical.
Safe for Skin Contact: Biocompatibility certification makes RPU 70 suitable for consumer products that may come into indirect contact with skin.
Chemical Compatibility: Resistant to a wide range of chemicals, ensuring durability in environments with frequent exposure to fluids and chemicals.

Disadvantages:

Moderate Heat Resistance: While tough and strong, RPU 70 has moderate heat resistance, which may limit its use in high-heat environments.
Limited Flexibility for Very Ductile Applications: Though highly durable, it may not be suitable for applications requiring extreme flexibility or elasticity.

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