Custom Powder Milling — Specialty Service

PolyClean’s Specialty Milling Service extends Standard Service (TDS-017) with enhanced process controls, tighter particle size distribution tolerances, optional blending of mesh fractions, and formal quality documentation packages. Specialty Service is designed for customers in semiconductor, aerospace-adjacent, medical device manufacturing, and advanced additive manufacturing who require traceability documentation, tighter PSD control (±2% on sieve specification), and multi-fraction blending to achieve a specific D10/D50/D90 particle size profile. Quote-based — contact PolyClean to discuss specifications.

PHYSICAL PROPERTIES

Property

Value / Range

Service Type

Enhanced toll milling with tight PSD control and documentation

PSD Tolerance

±2% on sieve specification (vs. ±5% Standard)

Available Polymers

Same as Standard Service — PEEK, PEI, PEK, PEKK, PPS, PAI, PPSU, PES, PSU (unfilled)

Blending

Multi-fraction PSD blending to achieve customer-specified D10/D50/D90 targets

Documentation Package

Certificate of Processing, PSD analysis report, lot traceability, chain-of-custody

Minimum Quantity

Higher minimums than Standard — contact PolyClean

 

THERMAL PROPERTIES

Property

Value

Processing

Ambient-temperature — same as Standard Service; tighter process monitoring and documentation

 

MECHANICAL PROPERTIES

Property

Value (SI)

Value (Imperial)

Quality Control

PSD analysis on every lot — customer receives report with shipment

 

Molecular Weight Check

MFI (Melt Flow Index) testing available per lot upon request

 

Contamination Protocol

Enhanced cross-contamination control — dedicated tooling per polymer on request

 

 

CHEMICAL RESISTANCE

Agent / Environment

Resistance Rating

Feedstock

Same purity requirements as Standard — clean, single-polymer, unfilled scrap only

 

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

SLS / LS Additive Manufacturing

Tight PSD required for consistent SLS powder bed behavior and recyclability

Semiconductor Equipment

Ultra-clean, traceability-documented powder for critical equipment components

Medical Device Powder Coating

Documented lots for QMS-controlled powder coating of non-implantable medical devices

Aerospace-Adjacent Components

Traceability-documented custom powder for qualified structural applications

Research & Development

Precise PSD profiles for material characterization, academic research, and process qualification

 

PACKAGING & AVAILABILITY

Format

Details

Output Packaging

Boxes or drums with tamper-evident sealing and full lot labeling

Documentation

Certificate of Processing, PSD report, and optional MFI test report included with each shipment

Chain of Custody

Input material lot → processing lot → output lot traceability documentation

 

Processing Notes

Lead times for Specialty Service are longer than Standard — plan accordingly.

Pricing is significantly higher than Standard Service due to enhanced QC and documentation — contact PolyClean for quote.

PolyClean’s Specialty Service is ideal for customers transitioning from virgin material to recycled RENU™ powder and needing a documented qualification lot.

 

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.