RENU™ PEEK LF NAT-MP140 is a precision-milled, low-flow grade PEEK powder derived from clean post-industrial recycled polyetheretherketone. The low-flow (LF) designation reflects feedstock derived from lower-viscosity PEEK scrap, yielding a powder with slightly different melt-flow characteristics while retaining excellent structural and thermal properties. The 140-mesh particle cut is suited for compression molding, press-and-sinter operations, and demanding powder coating applications where a more controlled flow during processing is preferred. Properties closely approximate virgin PEEK LF at significantly reduced material cost.
PHYSICAL PROPERTIES
Property | Value / Range |
Polymer Type | Polyetheretherketone (PEEK) |
Flow Grade | Low Flow (LF) |
RENU™ Code | RENU™ PEEK LF NAT-MP140 |
Color | Natural (off-white to light tan) |
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) | 0.45–0.60 g/cm³ |
Apparent / Tap Density | 0.65–0.80 g/cm³ |
Moisture Content | < 0.05% (as-shipped) |
THERMAL PROPERTIES
Property | Value |
Glass Transition Temperature (Tg) | 143°C (289°F) |
Melting Point (Tm) | 343°C (649°F) |
Continuous Use Temperature | 250°C (482°F) |
Short-Term Peak Temperature | 310°C (590°F) |
Thermal Conductivity | 0.25 W/m·K |
Coefficient of Thermal Expansion (CTE) | 47 × 10⁻⁶ /°C |
Heat Deflection Temperature (1.8 MPa) | 152°C (306°F) |
MECHANICAL PROPERTIES
Property | Value (SI) | Value (Imperial) |
Tensile Strength | 100 MPa | 14,500 psi |
Tensile Modulus | 3,600 MPa | 522,000 psi |
Elongation at Break | 30–50% | 30–50% |
Flexural Strength | 165 MPa | 24,000 psi |
Flexural Modulus | 3,700 MPa | 537,000 psi |
Compressive Strength | 120 MPa | 17,400 psi |
Izod Impact Strength (Notched) | 85 J/m | 1.6 ft-lb/in |
Hardness | Rockwell M99 | Rockwell R123 |
CHEMICAL RESISTANCE
Agent / Environment | Resistance Rating |
Strong Mineral Acids (H₂SO₄, HCl, HNO₃) | Good — consult for concentrated applications |
Weak Acids | Excellent |
Strong Alkalis / Bases | Good |
Weak Alkalis / Bases | Excellent |
Aliphatic Hydrocarbons | Excellent |
Aromatic Hydrocarbons | Excellent |
Halogenated Solvents | Excellent |
Ketones & Esters | Excellent |
Alcohols | Excellent |
Hot Water / Steam (to 200°C) | Excellent |
Fuels & Oils | Excellent |
Water Absorption (24 hr, ASTM D570) | < 0.5% |
ELECTRICAL PROPERTIES
Property | Value |
Dielectric Strength | 190 kV/m |
Dielectric Constant (1 MHz) | 3.2 |
Volume Resistivity | > 10¹⁶ Ω·cm |
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 |
Compression Molding | Preferred grade for press-and-sinter and direct compression molding — controlled flow aids part density |
Powder Coating | Suitable for powder coating applications where slower flow during cure is advantageous for thick or vertical surfaces |
Industrial Seals & Bearings | Seals, wear rings, thrust washers, and plain bearings in chemical processing equipment |
Non-Critical Medical Devices | Instrument housings and non-implant structural components requiring chemical resistance |
Electronics | Connectors, insulators, and carriers for high-temperature board-level assembly |
Automotive | Seals and valve components in high-temperature automotive powertrain systems |
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 LF grade is preferred for compression molding where HF grade may produce excessive flash at parting lines. Dry at 150°C for 3–4 hours before all melt-processing operations. Contact PolyClean for custom mesh sizes (20–170 mesh range available). |
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. |