High Performance Polymers

HexPEKK-100

ADDMAN’s strongest polymer combines proprietary PEKK thermoplastic and AS4 Carbon Fiber using SLS technology.

Join us for an upcoming webinar to learn more about this material engineered for aerospace & defense.

Certified. Trusted. Mission-Ready.

About HexPEKK® 100

HexPEKK®-100 is a high-performance polymer made for additive manufacturing using selective laser sintering (SLS). Reinforced with chopped carbon fiber, it offers outstanding strength, chemical resistance, and thermal stability—meeting aerospace standards for flammability, smoke, and toxicity.

At 50% the weight of metal with far lower thermal expansion, HexPEKK®-100 is ideal for mission-critical parts exposed to extreme temperatures, fuels, and solvents.

Access Material Datasheet

Ideal Applications

Ideal for aerospace, energy, and industrial use cases where performance under pressure matters most.

Ducting & Covers

Performs in thermal and chemical extremes for ECS, avionics, and EMI-shielded enclosures.

HexPEKK is ideal for lightweighting - parts like these structural brackets and mounts are made with HexPEKK instead of traditional metals.

Structural Brackets & Mounts

Ideal for lightweighting and metal replacement in support, avionics, and cockpit hardware.

HexPEKK is an ideal material for manufacture of device housings or complex enclosures

Connectors & Device Housings

Delivers durability and ESD protection for high-complexity enclosures and electronics.

Design Lighter. Build Stronger.

Download The Design Guide

Part Geometry Guidelines

These guidelines reflect typical allowables for parts printed in HexPEKK®-100.

Feature	Metric	Imperial
Max Part Size (L×W×H)	616 × 318 × 527 mm	24.25 × 12.5 × 20.75 in
Min Wall Thickness	2.032 mm	0.08 in
Min Hole Diameter	2 mm	0.08 in
Thickness Tolerance	+0.5 / -0.25 mm	+0.02 / -0.01 in
Surface Profile Tolerance	2 × (0.0075 × Part Max + 1) mm	2 × (0.0075 × Part Max + 0.04) in
Typical Surface Roughness (Finished)	<12.5 Ra µm	—
Typical Surface Roughness (Unfinished)	—	<500 Ra µm

CERTIFICATIONS

NCAMP-Certified with Published B-Basis Design Allowables

HEXPEKK® 100 is qualified through the National Center for Advanced Materials Performance (NCAMP) and includes NIAR-published B-basis design allowables, enabling faster material adoption for aerospace programs. Backed by a full material specification NMS 800 Rev A and process specification NPS 89800 Rev B, this certification supports robust design, repeatability, and regulatory confidence for mission-critical applications.

HexPEKK®-100 NCAMP Process Specification HexPEKK®-100 NCAMP Material Base Specification

Fracture Resistance

Proven Under Pressure

ADDMAN fracture testing demonstrates that HEXPEKK® 100 offers more than double the fracture resistance of ABS/CF, with superior strength retention across build orientations. This makes it a reliable choice for mission-critical applications where durability under stress is non-negotiable.

Chemical Resistance

Strength That Doesn’t Wash Out

HexPEKK®-100 retains its mechanical strength after 90 days of fluid immersion—across a wide range of aviation fuels, engine oils, hydraulic fluids, and water-based environments.

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