FDM · Glass-Filled Nylon

FDM PA6-GF Glass Filled Nylon (Rigid)

Name: FDM PA6-GF Glass Filled Nylon 3D Printing
Brand: RYSE 3D

The rigid, shape-stable glass filled nylon — PA6 reinforced with 25% glass fibre for 80 MPa tensile strength and a 191 °C heat deflection temperature, so parts stay dimensionally honest under load and mild heat. RYSE 3D prints PA6-GF on our large-format FDM platform, up to 500 × 500 × 900 mm in one piece. The go-to grade for glass filled nylon 3D printing: rigid parts without the carbon price.

Quote in PA6-GF → All FDM materials PA6-GF datasheet (PDF) ↓

Also known as glass filled nylon · PA6 glass · GF nylon · glass fibre nylon

Overview

Rigid, stable, and dimensionally honest

Some parts have one job: hold their shape. Glass reinforcement gives PA6-GF the rigidity and shape-stability to do exactly that — under clamping load, under mild heat, across a production batch. With 80 MPa tensile strength, a 5,357 MPa modulus and a 191 °C heat deflection temperature it sits just behind our carbon grades on outright numbers, at a friendlier price — the sensible rigid nylon when maximum stiffness isn’t the brief but staying dimensionally honest is.

Printed and finished in-house on our UK large-format FDM platform — up to 900 mm tall in one piece — PA6-GF can be bead blasted, smoothed, primed or A-class painted, all under one roof with 1–3 day express turnaround available.

Technical data

PA6-GF material properties

Headline properties for our FDM PA6-GF glass filled nylon.

Reviewed by the RYSE 3D engineering team · August 2026 Download the full datasheet below, or have it confirmed with your instant quote. Values vary with geometry and orientation.

Property	Value
Ultimate tensile strength	80 MPa
Elongation at break	2.4%
Heat deflection temperature	191 °C
Character	Rigid, shape-stable
Impact, notched (Charpy)	10 kJ/m²

Download PA6-GF datasheet (PDF) ↓

Applications

What glass filled nylon is used for

Where rigid parts have to hold their shape under load and mild heat.

FDM PA6-GF glass filled nylon inspection fixture clamping a machined casting on a CMM under a touch probe

Inspection fixture on the CMM — holding a machined casting

FDM PA6-GF glass filled nylon motor mount bracket bolted to a steel frame carrying an electric motor

Motor mount bracket — bolted, loaded, in service

Drone & UAV bodiesRigid housingsClamped fixturesBrackets & mountsLoad-bearing coversMachine guardsShape-critical partsBolted assembliesProduction jigs

Why PA6-GF

Why choose FDM PA6-GF

●

Rigid under load

A 5,357 MPa modulus resists deflection — clamped, bolted and loaded parts hold their geometry.

●

Shape-stable in mild heat

A 191 °C heat deflection temperature keeps fixtures and housings honest next to warm assemblies.

●

80 MPa strength

Real engineering strength without stepping up to carbon pricing.

●

Batch-consistent

Dimensional stability across a production run — part 40 measures like part 1.

●

Up to 900 mm in one piece

Full-size airframes, housings and fixtures on our large-format platform — no splitting, no bonding.

●

Finished in-house

Bead blasted, smoothed, primed or A-class painted — one team prints, finishes and inspects it.

Design guidance

Designing for PA6-GF

Typical guidelines for FDM PA6-GF glass filled nylon. We’ll confirm the specifics for your part with a free design-for-additive review at quote.

Design feature	Typical guideline
Build envelope (FDM)	500 × 500 × 900 mm in one piece
Turnaround	1–3 days express available
Bigger than the bed?	Split, print, bond & inspect the finished assembly
Load orientation	Strongest in-plane: 80 vs 61 MPa through-layer, about 1.3× — gentler than the carbon grades
Moisture	PA6 base absorbs moisture and loses roughly half its tensile strength saturated — for humid or outdoor service ask about PA12-CF
Annealing	Manufacturer-recommended 100 °C / 16 h cycle to reach rated mechanicals — specified at quote where the part benefits
Abrasion	Glass fill is abrasive on hardware — we run wear-resistant extrusion in-house
Finish	Bead blasted, smoothed, primed or A-class painted in-house

Get an instant quote → About our FDM service

Full specification

Every number an engineer needs

ISO-referenced values from the manufacturer’s technical data sheet. Dry condition is annealed at 100 °C for 16 h; wet values follow water immersion — the honest, real-service numbers. Reference only; confirmed at quote.

Property	Dry · XY	Dry · Z	Wet · XY	Method
Mechanical
Tensile strength	80.1 ± 1.8 MPa	60.7 ± 1.1 MPa	40.2 MPa	ISO 527
Young’s modulus	5357 ± 211 MPa	3376 ± 142 MPa	1794 MPa	ISO 527
Elongation at break	2.4 ± 0.2%	4.0 ± 0.4%	4.2%	ISO 527
Flexural strength	133.8 ± 4.7 MPa	99.9 ± 3.2 MPa	47.8 MPa	ISO 178
Flexural modulus	4314 ± 121 MPa	2850 ± 282 MPa	1448 MPa	ISO 178
Charpy impact, notched	10.0 ± 0.7 kJ/m²	—	28.0 kJ/m²	ISO 179
Charpy impact, un-notched	27.4 ± 0.5 kJ/m²	16.2 ± 4.0 kJ/m²	82.1 kJ/m²	ISO 179
Thermal
Heat deflection, 0.45 MPa	191 °C			ISO 75
Heat deflection, 1.8 MPa	157 °C			ISO 75
Vicat softening	211.7 °C			ISO 306
Glass transition (Tg)	70.4 °C			DSC, 10 °C/min
Melting temperature (Tm)	214.5 °C			DSC, 10 °C/min
Crystallisation temperature	174.5 °C			DSC, 10 °C/min
Decomposition temperature	437.1 °C			TGA, 20 °C/min
Physical
Density	1.20 g/cm³ at 23 °C			ISO 1183
Glass fibre content	25%			—
Flame rating	UL 94 HB at 1.5 mm			UL 94
Surface resistivity	>10¹² Ω (insulative)			ANSI ESD S11.11

Anisotropy note: PA6-GF is mildly directional (80 vs 61 MPa through-layer, about 1.3× — gentler than the carbon grades). We orient load paths for your part at quote.

Honest limits

Where PA6-GF is the wrong call

Engineering materials are picked on what they can’t do as much as what they can. If any of these apply, we’ll spec you a better grade — free, with your quote.

Humid or outdoor service

The PA6 base absorbs moisture and loses roughly half its tensile strength saturated — 80 to 40 MPa, with modulus down from 5,357 to 1,794. For damp or unconditioned service, PA12-CF holds its properties far better.

Impact & flex features

At 2.4% elongation, glass filling makes it rigid rather than tough. For parts that take hits, PA6/12-CF COPA reaches 22.8 kJ/m² against 10; for snap-fits and hinges, MJF PA 11 Gen2.

Peak stiffness

Glass gives most of the rigidity, not all of it. Where the modulus decides the part, PA6-CF reaches 8,636 MPa against 5,357.

Real load-carrying parts

Filled does not mean certified. At 80 MPa we would talk through the duty cycle before a part carries meaningful load — that review is free with your quote.

Flame-rated parts

PA6-GF is UL 94 HB only. Where ignition is the constraint, specify PC-FR flame-retardant PC/ABS or our UL94 V-0 SLA resin.

ESD-sensitive electronics

Glass-filled nylon is insulative, not static-dissipative. For handling sensitive electronics, use our dedicated ESD resin.

Compare

Glass filled vs carbon filled nylon

PA6-GF is the rigid, shape-stable nylon at a friendlier price. For maximum stiffness and heat, see PA6-CF; for ductility and low moisture, PA12-CF; for impact toughness, PA6/12-CF COPA; for tooling in real heat, PET-CF. For production nylon at volume, powder-bed MJF may suit.

Property	PA6-GF (this page)	PA6-CF	PA12-CF
Tensile strength	80 MPa	109 MPa	100 MPa
Young’s modulus	5,357 MPa	8,636 MPa	—
Heat deflection	191 °C	215 °C	176 °C
Elongation at break	2.4%	1.8%	12%
Impact, notched	10 kJ/m² (Charpy ISO 179)	12.6 kJ/m² (Charpy ISO 179)	13 kJ/m² (Izod ISO 180)
Best for	Rigidity & value	Peak stiffness & heat	Ductile, low moisture

Note: PA12-CF impact is measured by Izod ISO 180 and the PA6-based grades by Charpy ISO 179. The methods are not directly comparable — figures are shown for reference, not as a ranking.

FDM

All FDM Materials

Ten engineering thermoplastics — carbon, glass, high-temp and flame-retardant grades.

See FDM materials → FDM

FDM 3D Printing Service

How we print FDM & large-format — specs, finishing, lead times and pricing.

Explore FDM → All

All 3D Printing Materials

Every material across SLS, MJF, FDM and SLA.

See all materials →

FAQ

FDM PA6-GF FAQ

What is PA6-GF glass filled nylon?

PA6-GF is a PA6 nylon reinforced with 25% glass fibre, printed on our large-format FDM platform. Glass reinforcement adds rigidity and shape-stability under load and mild heat — the sensible rigid nylon for parts that must stay dimensionally honest.

How rigid is PA6-GF?

Rigid enough to resist deflection under clamping and bolted load: a 5,357 MPa Young’s modulus (ISO 527) with 80 MPa tensile strength and 10 kJ/m² notched Charpy impact. Anisotropy is mild for a filled grade — about 1.3× in-plane to through-layer. At 2.4% elongation it’s a stiff grade, built to hold geometry rather than to flex.

What is glass filled nylon used for?

Drone and UAV bodies, rigid housings and load-bearing covers, clamped fixtures, brackets and mounts, machine guards and production jigs — up to 500 × 500 × 900 mm in one piece.

What is the difference between glass filled and carbon filled nylon?

Carbon fibre gives higher stiffness and strength for the weight — our PA6-CF reaches 109 MPa, an 8,636 MPa modulus and 215 °C. Glass fibre gives most of the rigidity and shape-stability at a friendlier price, with slightly more elongation for its class. Where budget matters and peak numbers don’t, glass filled is the sensible pick — we’ll spec it free with your quote.

Does PA6-GF handle heat?

Mild heat, yes — a 191 °C heat deflection temperature at 0.45 MPa, or 157 °C at 1.8 MPa under load, keeps parts stable next to warm assemblies and enclosed electronics. For tooling in sustained real heat, step up to PET-CF at 205 °C, printed in our dedicated high-temperature chamber.

Does PA6-GF absorb moisture?

Yes — it is a PA6 base, so it does. Saturated, tensile strength falls from 80 to 40 MPa and the modulus from 5,357 to 1,794 MPa. Both dry and wet figures are published in the full specification above so you can design against the real service condition, and for damp environments we would point you at PA12-CF instead.

Where can I find PA6-GF material properties and a datasheet?

The key material properties are listed above, and you can download the full PA6-GF datasheet (PDF) or have it confirmed with your instant online quote.

How do I order glass filled nylon parts in the UK?

Upload your CAD to our instant online quote and select FDM PA6-GF. As a UK 3D printing service bureau we print, finish and inspect in-house in Shipston-on-Stour, Warwickshire, and ship UK-wide — from prototyping to production.

Get your PA6-GF parts priced in seconds.

Upload your CAD for an instant online quote in FDM PA6-GF glass filled nylon — from a single rigid fixture to a batch of large-format housings. Printed and finished in the UK.

Get an instant quote → See all FDM materials

Printed and finished at our own ISO 9001 facility in Shipston-on-Stour, Warwickshire. Call us on 024 7736 0144.