RENU™ PEK HF NAT-MP140 is a precision-milled polyetherketone (PEK) powder in the high-flow grade, produced from clean post-industrial recycled PEK scrap. PEK occupies a performance tier above standard PEEK, offering a higher melting point (Tm ≈ 365°C vs. 343°C for PEEK) and higher glass transition temperature (Tg ≈ 162°C vs. 143°C), making it the preferred choice for the most demanding high-temperature structural and tribological applications. The 140-mesh cut is optimized for compression molding, powder coating, and SLS applications requiring next-level thermal performance.
PHYSICAL PROPERTIES
Property | Value / Range |
Polymer Type | Polyetherketone (PEK) |
Flow Grade | High Flow (HF) |
RENU™ Code | RENU™ PEK HF NAT-MP140 |
Color | Natural (off-white to light beige) |
Mesh Size | 140 mesh (≤ 105 µm) |
Bulk Density (loose) | 0.45–0.60 g/cm³ |
Specific Gravity | 1.30 g/cm³ |
Moisture Content | < 0.05% (as-shipped) |
THERMAL PROPERTIES
Property | Value |
Glass Transition Temperature (Tg) | 162°C (324°F) |
Melting Point (Tm) | 365°C (689°F) |
Continuous Use Temperature | 260°C (500°F) |
Short-Term Peak Temperature | 310°C (590°F) |
Thermal Conductivity | 0.29 W/m·K |
CTE | 45 × 10⁻⁶ /°C |
Heat Deflection Temperature (1.8 MPa) | 165°C (329°F) |
MECHANICAL PROPERTIES
Property | Value (SI) | Value (Imperial) |
Tensile Strength | 110 MPa | 16,000 psi |
Tensile Modulus | 4,100 MPa | 595,000 psi |
Elongation at Break | 30–40% | 30–40% |
Flexural Strength | 180 MPa | 26,100 psi |
Flexural Modulus | 4,200 MPa | 609,000 psi |
Compressive Strength | 140 MPa | 20,300 psi |
Izod Impact (Notched) | 90 J/m | 1.7 ft-lb/in |
Hardness | Rockwell M105 | Rockwell R126 |
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 |
Volume Resistivity | > 10¹⁶ Ω·cm |
Dielectric Constant (1 MHz) | 3.3 |
Dielectric Strength | 180 kV/m |
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 |
High-Temperature Compression Molding | Parts requiring service above PEEK capability — pump components, valve bodies, high-temp structural |
Powder Coating (High-Temp Service) | Coatings for components operating continuously above 250°C |
Non-Critical Aerospace | Structural brackets and housings in environments where standard PEEK is marginal |
Oil & Gas Downhole | Seals, packers, and valve components for deep downhole environments with extreme temperatures |
Semiconductor Equipment | Wafer handling and process chamber components requiring highest purity at elevated temperatures |
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 PEK requires higher processing temperatures than PEEK — typical melt processing at 380–420°C. Dry at 160°C for 4 hours before processing. PEK is the preferred upgrade from PEEK for continuous-service temperatures above 240°C. |
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. |