RENU™ PEI HF NAT-MP140 is a precision-milled high-flow polyetherimide (PEI) powder produced from clean post-industrial recycled PEI scrap. PEI is an amorphous, amber-colored engineering thermoplastic offering an outstanding combination of elevated-temperature performance, inherent flame retardancy (V-0 rating without additives), excellent electrical insulation, and broad chemical resistance. The 140-mesh cut delivers a free-flowing fine powder suitable for powder coating, SLS additive manufacturing, and compression molding of electrical and electronic components. At a fraction of the cost of virgin PEI, RENU™ PEI opens high-performance polymer applications to cost-sensitive industries.
PHYSICAL PROPERTIES
Property | Value / Range |
Polymer Type | Polyetherimide (PEI) |
Flow Grade | High Flow (HF) |
RENU™ Code | RENU™ PEI HF NAT-MP140 |
Color | Amber / transparent amber (natural) |
Mesh Size (US Standard Sieve) | 140 mesh |
Nominal Top Particle Size | ≤ 105 µm |
D50 Particle Size (typical) | 40–65 µm |
Particle Shape | Irregular (ambient milled) |
Bulk Density (loose) | 0.40–0.55 g/cm³ |
Specific Gravity | 1.27 g/cm³ |
Moisture Content | < 0.05% (as-shipped) |
Flammability Rating | UL94 V-0 (inherent — no additives) |
THERMAL PROPERTIES
Property | Value |
Glass Transition Temperature (Tg) | 217°C (423°F) |
Continuous Use Temperature | 170°C (338°F) |
Short-Term Peak Temperature | 200°C (392°F) |
Thermal Conductivity | 0.22 W/m·K |
CTE | 56 × 10⁻⁶ /°C |
Heat Deflection Temperature (1.8 MPa) | 200°C (392°F) |
Specific Heat Capacity | 0.27 cal/g·°C |
MECHANICAL PROPERTIES
Property | Value (SI) | Value (Imperial) |
Tensile Strength | 105 MPa | 15,200 psi |
Tensile Modulus | 3,000 MPa | 435,000 psi |
Elongation at Break | 60% | 60% |
Flexural Strength | 150 MPa | 21,700 psi |
Flexural Modulus | 3,300 MPa | 479,000 psi |
Compressive Strength | 130 MPa | 18,900 psi |
Izod Impact (Notched) | 50 J/m | 0.9 ft-lb/in |
Hardness | Rockwell M109 | Rockwell R125 |
CHEMICAL RESISTANCE
Agent / Environment | Resistance Rating |
Dilute Acids | Excellent |
Dilute Alkalis | Excellent |
Strong Acids | Good — concentrated acids may cause degradation |
Strong Alkalis | Limited — strong bases attack PEI |
Aliphatic Hydrocarbons | Excellent |
Aromatic Hydrocarbons | Good |
Halogenated Solvents | Good |
Alcohols | Excellent |
Ketones | Limited — some ketones can stress-crack PEI |
Hot Water / Steam | Good to 100°C; limited above |
Water Absorption (24 hr) | 0.25% |
ELECTRICAL PROPERTIES
Property | Value |
Dielectric Strength | 830 kV/m |
Dielectric Constant (1 MHz) | 3.15 |
Dissipation Factor (1 MHz) | 0.001 |
Volume Resistivity | 6.7 × 10¹⁷ Ω·cm |
Surface Resistivity | 10¹⁶ Ω/sq |
Arc Resistance | 128 seconds |
TYPICAL APPLICATIONS
Note: RENU™ recycled powders are suitable for non-critical industrial, electronics, automotive, and commercial applications. They are NOT recommended for safety-critical aerospace structures or life-sustaining medical devices.
Application Area | Specific Uses |
Electronics / PCB | High-temperature connectors, sockets, IC chip carriers, and PCB spacers |
Electrical Insulation | Transformer components, coil bobbins, and high-frequency insulation |
Powder Coating | Coating of metal components for electrical insulation in motor and generator applications |
Additive Manufacturing (SLS) | Functional prototypes and production parts requiring V-0 flame rating and high Tg |
Non-Critical Aerospace (interiors) | Cabin interior brackets, sensor housings, and electrical enclosures — not structural |
Non-Critical Medical Devices | Sterilizable housings, trays, and instrument enclosures for non-implantable devices |
Automotive | Under-hood electrical connectors, sensor housings, and junction boxes |
PACKAGING & AVAILABILITY
Format | Details |
Box (Standard) | Up to 25 kg (55 lbs) per box — double-wall corrugated with poly liner |
Drum (Bulk) | 68 kg (150 lbs) bulk drums — fiber or plastic drum with sealed poly liner |
Custom Packaging | Available on request for larger volumes — contact PolyClean for details |
Labeling | Each container labeled with: RENU™ product code, mesh size, lot number, and date of manufacture |
Processing Notes PEI is hygroscopic — dry at 120–150°C for 4 hours minimum before all processing. Avoid prolonged contact with strong bases (NaOH, KOH) which will hydrolyze the imide linkage. PEI is inherently V-0 flame rated — no halogenated flame retardants required. |
DISCLAIMER The technical data contained in this document has not been produced by PolyClean Technologies through its own independent testing and measurements. This information has been assembled from publicly available data published by original polymer manufacturers and industry reference sources. PolyClean Technologies makes no warranties, expressed or implied, regarding the accuracy or completeness of this information.
Customers are solely responsible for verifying that this material is suitable for their specific application. PolyClean Technologies shall not be liable for any damages resulting from the use of this information or from the use of its products in any application. This data is intended for general guidance only.
RENU™ recycled materials are produced from post-industrial clean scrap and are appropriate for non-critical industrial, commercial, electronics, and general-purpose applications. They are not recommended or warranted for use in flight-critical aerospace structures, implantable medical devices, or other life-safety applications without thorough independent testing and qualification by the end user. |