Flexible Series

FilamentBay™ TPU 90A

The balance of durability and flexibility

Illustrative product image; selected White. Exact color photo unavailable.

Flexible Series · TPU 90A

FilamentBay™ TPU 90A

The balance of durability and flexibility

Suggested uses RC tyres · Watch straps

Feeder: External spool · Review printer limits

$27.99 USD / 1 kg spool · 1.75 mm

Standard order · availability checked below

Stock confirmation required

Color: White8 colors

Color and spool size

SKU FB-TPU-90A-WHI-1K HEX #F4F4F4

No payment is taken here. We confirm availability and send a payment link within one business day.

4+ spools ≈ $24.63 each · 12% off any mix, applied automatically.

Check your setup

External spool. Print from the external spool holder. Bambu Lab excludes 95A and softer from the AMS lite, and advises against flexible material in the full-size AMS.

Direct drive is the recommended starting arrangement. Check the feed path and test a small sample.

Grade sources and evidence limits · Printing settings

Request a sample Farm pricing

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unopened spools

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Save, compare & printer preferences

Saved materials & my printer

Set your printer to review material and feeder limits.

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Features

The balance of durability and flexibility

Strikes the balance between durability and flexibility with excellent abrasion resistance. Made for functional flexible parts and protective components that must be both strong and tough.

Typical catalog values are not finished-part design allowables. Test method, conditioning, specimen orientation and batch acceptance limits require confirmation. Source and evidence status.

Best for

Properties

TPU 90A application illustration 1 — RC tyres — application illustration, not a validated print sample.

TPU 90A application illustration 2 — Watch straps — application illustration, not a validated print sample.

TPU 90A application illustration 3 — Tool grips — application illustration, not a validated print sample.

Technical specifications

Printing settings & presets

Temperature, drying and printer setup

Nozzle220–240 °C

Bed30–60 °C

Max speedNot verified

Drying suggestion55 °C · 4 h

Extruder adviceDirect drive recommended

AMSExternal spool

Dry before printing if the bag has been open more than a few days: 55 °C · 4 h. See the drying guide.

Download starting presets & worksheets

Starting settings

Generated from available catalog values; validate on your printer. Target versions and calibration steps.

Bambu StudioStarting preset OrcaSlicerStarting preset PrusaSlicerStarting preset

Where 90A sits on the ladder

TPU Hub

Feel descriptions are informal analogies. Wall thickness and infill change behavior; these are application ideas, not measured part results.

85A Feels like: Running-shoe sole Folds flat, springs back Shop 85A

90A Feels like: Bicycle inner tube Bends easily, firm rebound You are here

95A Feels like: Shopping-cart wheel Bends, does not squish Shop 95A

98A Feels like: Tyre tread Flexes in thin walls Shop 98A

72D Feels like: Hard hat Rigid, tough, wear-resistant Shop 72D

Material properties

Supplier values & measurement limits

Mechanical properties
Tensile strength (MPa)	30 ± 3
Elongation at break (%)	> 1000
Shore hardness	90A

Physical properties
Density (g/cm³)	1.7
Melt flow index (g/10 min)	32 ± 5
Heat deflection temperature (°C)	36 ± 2

Spool & filament
Diameter tolerance	± 0.02 mm
Net weight	1 kg (0.25–5 kg available)
Spool outer diameter	200 mm
Spool width	65 mm
Spool hub	54 mm
Empty spool weight	160 g

Ultraline company brochure, PDF page 23. Typical catalog values are not finished-part design allowables. Test method, conditioning, specimen orientation and batch acceptance limits require confirmation. The source does not identify a specimen process, ISO method, HDT load or MFI temperature/load. View this grade's evidence status.

Buy more, pay less per spool

Any 4+ spools of any FilamentBay material take 12% off automatically. From 50 spools a month, the Print Farm program prices per kilogram.

Print Farm pricing

Quantity	Price per spool
1–3	$27.99
4+	≈ $24.63 (discount rounded on subtotal)
50+ / month	Per-kg ladder

Frequently asked questions

Is 90A easier to print than 85A?

Its higher nominal hardness may make it a useful alternative to try, but no comparative printer validation is published. Keep geometry and process constant while evaluating feeding and flexibility.

What does 90A mean?

Shore A hardness. 90A sits between a shoe sole (85A) and a shopping-cart wheel (95A).

Do I need to dry it before printing?

Popping and stringing can have several causes. Check moisture and print conditions separately. The listed drying values are supplier suggestions, not verified endpoints; confirm the grade, spool and dryer limits before heating. See the drying guide for a controlled workflow.

Downloads

Bambu Studio profile Generated starting values for TPU 90A; printer validation not published. Starting preset

OrcaSlicer profile Generated starting values for TPU 90A; printer validation not published. Starting preset

PrusaSlicer profile Generated starting values for TPU 90A; printer validation not published. Starting preset

Technical data sheet Ask whether grade-specific test conditions and a batch report are available. Request TDS

Material comparison All grades with price, settings, supplier properties and explicit evidence gaps. Open guide

All profiles Formats, validation status, target versions and calibration steps. Profiles page

Related guides

All guides

How to print TPU without stringing or jams

Step-by-step TPU settings for direct-drive and Bowden printers: temperature, speed, retraction, drying and bed prep.

4 min read

FilamentBay™ TPU 90A

Check your setup

The balance of durability and flexibility

Printing settings & presets

Where 90A sits on the ladder

Material properties

Buy more, pay less per spool

Frequently asked questions

Downloads

Related guides

How to print TPU without stringing or jams

More from the Flexible Series

TPU 72D Filament

TPU 85A Filament

TPU 95A Filament