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Nexa3D xPRO9400-FR Flame-Retardant Engineering Resin – UL 94 V-0 at 2 mm | 1.5 kg

What you get

Sealed, chip-tracked cartridge — factory-sealed with its Nexa3D lot.
Validated LSPc profile — print settings plus wash, UV and thermal cure guidance.

Materials, DLP 3D Printing Materials, Engineering, Manufacturing, Resin 3D Printing Materials · LSPc

Nexa3D xPRO9400-FR Flame-Retardant Engineering Resin – UL 94 V-0 at 2 mm | 1.5 kg

Halogen-free flame-retardant engineering resin — UL 94 V-0 at 2 mm with very high heat resistance, developed with BASF Forward AM.

✓ UL 94 V-0 at 2 mm (V-1 at 1.5 mm); rail DIN EN 45545-2 HL1/HL2; LOI ≥ 28
✓ Stiff and hot: 88 Shore D, HDT up to 250 °C @ 0.45 MPa (with 150 °C post-cure)
✓ 1.5 kg cartridge for Nexa3D XiP / XiP Pro (LSPc)

$250

Prices follow supplier cost and stock availability and are updated regularly. The price you see is today's price — once you order, it's held for 7 days.

NDA standard 2 Business Days

60+AM teams supplied

Batch-to-batchconsistent viscosity & cure

Profiles + datasheetin every order

Fast dispatchL.A. stock · M–F

What your process engineer actually checks

A flame rating tied to a wall thickness

UL 94 V-0 on xPRO9400-FR is rated at 2 mm — thinner sections are not covered by that rating, and the top heat numbers need the three-hour 150 °C thermal post-cure. We give you the cure schedule and the wall-thickness caveat up front so your compliance submission does not come back.

A materials engineer on the line

Resin selection, exposure tuning, post-cure and finishing — answered by engineers who print Nexa3D LSPc in-house. Sub-4h reply, NDA standard.

UL 94 V-0

Flammability @2 mm

Halogen-free

FR chemistry

3 h @150 °C

Thermal post-cure

XiP / XiP Pro

Compatible printers

1.5 kg

Smart cartridge

About this product

Nexa3D xPRO9400-FR is a halogen-free, flame-retardant engineering photopolymer developed with BASF Forward AM — for functional parts that must resist ignition and high temperatures, from electrical enclosures to rail interior components.

Why engineers choose xPRO9400-FR

Fire and thermal performance documented on the Nexa3D TDS.

Flame retardant

UL 94 V-0 at 2 mm (V-1 at 1.5 mm), halogen-free. Rail DIN EN 45545-2 HL1/HL2, LOI ≥ 28, low smoke per ISO 5659-2.

Very high heat resistance

HDT up to ~250 °C at 0.45 MPa (141 °C at 1.82 MPa) after a 150 °C post-cure. Glass transition 175 °C.

Rigid and strong

71–78 MPa tensile, 115 MPa flexural, 88 Shore D — plus electrical-insulator resistivity for enclosures.

LSPc workflow

Runs on Nexa3D XiP, XiP Pro, and NXE 400Pro with validated NexaX profiles. Preheat 5 h at 60 °C before printing.

From cartridge to finished part

A short thermal step unlocks the full fire and heat rating.

Step 01

Preheat & print

Preheat 5 h at 60 °C, shake until clear, load the profile in NexaX, and print on your LSPc system.

Step 02

Wash

Clean in xClean, then IPA — no more than 2 minutes in xClean or 5 minutes in IPA.

Step 03

Cure

UV post-cure, then an optional 3-hour 150 °C thermal treatment for peak fire and heat performance.

Technical specifications

Values from the Nexa3D xPRO9400-FR TDS (2024 v5), fully post-cured. Highest HDT figures require the optional 3-hour 150 °C thermal post-treatment; UL 94 V-0 applies at 2 mm.

Property	Value	Method
UL 94 flammability	V-0 (2 mm), V-1 (1.5 mm)	UL 94
Limiting oxygen index	≥ 28	ISO 4589-2
Rail fire classification	HL1 / HL2	DIN EN 45545-2
Tensile strength	71–78 MPa	ASTM D638
Tensile modulus	up to 4060 MPa	ASTM D638
Elongation at break	2.4–3.1 %	ASTM D638
Flexural strength	115 MPa	ASTM D790
Flexural modulus	3400 MPa	ASTM D790
Izod impact, notched	20 J/m	ASTM D256
Hardness	88 Shore D	ASTM D2240
HDT @ 1.82 MPa	up to 141 °C	ASTM D648
HDT @ 0.45 MPa	up to ~250 °C	ASTM D648
Glass transition (Tg)	175 °C	ASTM D4065
Viscosity @ 25 °C	830 cP	ASTM D7867
Liquid density	1.21 g/cm³	ASTM D4052

Typical applications

Where fire performance and heat both matter.

Electrical enclosures

Housings, connectors, covers

Rail interior parts

DIN EN 45545-2 HL1/HL2

Automotive under-hood

Heat-exposed brackets

Jigs & fixtures

Flame-safe tooling

Not sure xPRO9400-FR is the right resin?

Compare other Nexa3D LSPc engineering resins in our catalog.

Tough & heat-resistantxPRO1100 BlackRigid engineering resin, 5 kg · $750View resin →
General purposexPRO410Balanced prototyping resin, 5 kg · $427View resin →
Tough & impactxFLEX475 BlackHigh-elongation impact resin, 5 kg · $1,335View resin →

Tell us your fire standard, wall thickness, and service temperature — a materials engineer will confirm whether xPRO9400-FR and the right post-cure meet your requirement. Sub-4h reply, NDA standard.

Why source through Additive Plus

Genuine Nexa3D resin from US stock — lot-consistent material, no grey-market repackaging.
LSPc workflow support — validated NexaX profiles, wash, cure, and thermal post-cure dialed in.
Volume pricing and official purchase orders — request a quote for 10 kg or more.
Under 24h response from engineers who run these machines in-house.

Brand	Nexa3D
Weight	1.5 kg
Country of origin	USA
Printing Materials	Resins
Platform	XiP
Technology	LSPc
Resin Type	High-temp, Rigid
Application	Engineering, Manufacturing

Download xPRO9400-FR Resin Technical Datasheet

pdf · 496 KB

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Download xPRO9400-FR Resin Safety Datasheet

pdf · 586 KB

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Common questions

Don't see yours? Email [email protected] — NDA standard, typical reply within 4 hours.

What exactly does the UL 94 V-0 rating on xPRO9400-FR cover?

Nexa3D rates xPRO9400-FR as UL 94 V-0 at 2 mm wall thickness. That rating applies to specimens of that thickness, cured to the published schedule — it is not a blanket claim for every geometry you print. Thin walls, lattices and hollow sections behave differently and are outside the rated condition. If your part needs to be presented in a compliance file, print test coupons at your production wall thickness and cure profile, and have them evaluated. Our materials engineer will help you plan that coupon set.

Which Nexa3D printers run the 1.5 kg xPRO9400-FR cartridge?

The 1.5 kg smart cartridge is the XiP and XiP Pro format: it drops into the printer, and the NFC chip hands NexaX the validated xPRO9400-FR profile and lot data. NXE 400 and 400Pro machines take bottles instead of cartridges, so this pack will not fit them. If you are not sure which format your machine uses, send us the serial number and we will confirm before shipping. Mixing formats is the single most common ordering mistake on Nexa3D materials.

What post-processing does xPRO9400-FR need to reach its published properties?

Wash in xCLEAN, then rinse in IPA, keeping soak times short so the part does not swell. Dry thoroughly, then UV post-cure at 405 nm. The flame-retardant and high-temperature properties additionally require a three-hour thermal post-cure at 150 °C — without it, the resin still prints, but you cannot claim the rated performance. A convection oven with reliable set-point control is enough; we can advise on ramp rates and part support during the thermal step.

What applications is xPRO9400-FR intended for?

It is built for parts where flammability is a design requirement: electrical enclosures and connector housings, rail and transit interior components, aerospace and defence cabin brackets, and electronics fixtures that sit near heat sources. It is an engineering resin, not a dental or skin-contact material. If your specification cites a rail or aerospace fire standard rather than UL 94, send us the clause — we will tell you honestly whether xPRO9400-FR is a candidate or whether you need a different route.

Is xPRO9400-FR halogen-free?

Yes — Nexa3D formulates xPRO9400-FR with a halogen-free flame-retardant package, which matters for customers with RoHS-adjacent internal restrictions or with end-of-life and smoke-toxicity concerns. For any formal declaration, work from the current Nexa3D safety data sheet and technical data sheet for the lot you receive rather than from a web page. We will send both documents with your order and can request an updated declaration from the manufacturer if your compliance team needs one on file.

How should the cartridge be stored, and can I keep a part cartridge?

Store the cartridge sealed, upright, at normal indoor room temperature, away from daylight and UV lamps. A part-used cartridge can stay in the printer between jobs if the machine is closed and the room is not sunlit; for longer breaks, cap it and shelve it in the dark. Agitate before the next print so the flame-retardant fillers redisperse. Each cartridge carries a lot and expiry on its label — use that date, and never decant used vat resin back into it.

Can I order several cartridges or raise an official purchase order?

Yes. Use the Custom volume quote button for multi-cartridge orders and we will confirm price, lot availability and freight. Official purchase orders and net terms on approved accounts are standard, and we can consolidate shipments if you stock several Nexa3D materials. A materials engineer reviews every volume request — if a different grade is a better fit for your part or your fire specification, we will say so before you commit the budget.

Place your order, or talk to an engineer first

Order Nexa3D xPRO9400-FR Flame-Retardant Engineering Resin – UL 94 V-0 at 2 mm | 1.5 kg direct, or talk to materials engineer

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