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Meldin® 4310

Product catalog summary

Overview: Meldin® 4310 is a high-performance material known for its black color, excellent tribological properties, and very good impact resistance. It is particularly recommended for use in seal rings and washers.

Working Temperature Range: The material can operate effectively from cryogenic temperatures up to +270°C [+518°F].

Physical Properties:

Specific Gravity: 1.46 (ASTM D792)
Water Absorption: 0.28% over 24 hours at room temperature (ASTM D570)

Mechanical Properties:

Tensile Strength: 113 MPa [16,400 psi] at room temperature and 75 MPa [10,900 psi] at 235°C [455°F] (ASTM D638)
Elongation: 3.3% at room temperature (ASTM D638)
Tensile Modulus: 6.8 GPa [9.9 psi x 10⁵] at room temperature (ASTM D638)
Compressive Strength: 170 MPa [24,700 psi] at room temperature (ASTM D695)
Compressive Modulus: 5.3 GPa [7.7 psi x 10⁵] at room temperature (ASTM D695)
Flexural Strength: 215 MPa [31,200 psi] at room temperature and 113 MPa [16,400 psi] at 235°C [455°F] (ASTM D790)
Flexural Modulus: 6.9 GPa [10 psi x 10⁵] at room temperature (ASTM D790)

Thermal Properties:

Melting Point: 371°C [700°F] (ASTM D3418)
Glass Transition Temperature: 280°C [536°F] (ASTM D3418)
Linear Coefficient of Thermal Expansion: 2.5 m/m/°C [1.4 in/in/°F] below Tg (ASTM E831)
Thermal Conductivity: 0.5 W/m·°C [3.9 BTU·in/hr·ft²·°F] (ASTM F433)
Heat Deflection Temperature: 279°C [534°F] (ASTM D648)

Electrical Properties:

Dielectric Constant: 6 at room temperature and 1kHz (ASTM D150)
Volume Resistivity: 8 x 10¹⁵ Ohm cm at room temperature (ASTM D257)

General Information:

Resin Matrix: PAI
Reinforcing Materials: Graphite / PTFE

Note: The values provided are typical and intended for reference only. They should not be used as a basis for design specifications or quality control.

Catalog excerpts

OmnisealSolutions SAINT-GOBAIN BEYOND the boundaries of possible MATERIAL DATASHEET Meldin® 4310 Features & Benefits: Black color, excellent tribological properties, very good impact resistance Recommended for seal rings and washers Working Temperature Range: from cryogenic to +270°C [+518°F] Test Methods Typical Values Specific Gravity Tensile Strength - RT / 235°C [455°F] Elongation - RT Tensile Modulus - RT Compressive Strength - RT / 235°C [455°F] Compressive Modulus - RT Flexural Strength - RT / 235°C [455°F] Flexural Modulus - RT Melting point Glass Transition Temperature Linear Coefficient of Thermal Expansion along flow, <Tg / >Tg Thermal conductivity Heat deflection temperature Dielectric Strength Dielectric Constant - RT - 1kHz Volume Resistivity - RT PHYSICAL ASTM D792 ASTM D570 MECHANICAL ASTM D638 ASTM D638 ASTM D638 ASTM D695 ASTM D695 ASTM D790 ASTM D790 THERMAL ASTM D3418 ASTM D3418 ASTM E831 ASTM F433 ASTM D648 ELECTRICAL ASTM D149 ASTM D150 ASTM D257 GENERAL m/m/°C [in/in/°F] x 10"5 W/itt°C [BTlTin/hrft2^°F] °C [°F] kV/mm [V/mil] Reinforcing Materials - Graphite / PTFE - The table above represents typical values, intended for reference only. They should NOT be used as a basis for design specifications or quality control. Meldin® is a registered trademark. © 2025 Omniseal Solutions Omniseal Solutions

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Meldin® 4310

Meldin® 4310

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