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Flexible materials · Material guide

PEBA (polyether block amide)

A flexible polyamide blend used in cushioning, footwear and sports equipment.

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Understand the material

At a glance

Read the full material overview

A polyamide/polyether thermoplastic elastomer. This entry describes eSUN PEBA-90A; other grades can differ.

Applications

PEBA is used where a light elastomer should recover energetically after deformation. Arkema attributes the low energy loss of its Pebax family to the polyamide/polyether block structure and documents sports uses including shoe components, foams and ski boots. This is why energy return is part of PEBA's engineering role; it is a different requirement from simply being soft or surviving a large stretch.

The grade and process boundaries are essential. A commercial foamed midsole is not equivalent to a solid eSUN PEBA-90A print, and tensile elongation does not measure rebound. For FDM, the bouncy-ball build below supplies direct creator evidence of lively bounce in a particular lattice and profile. The eSUN data also shows weaker printed Z strength than its XY lower-bound tensile figure. Geometry, orientation and cyclic testing determine whether that behavior suits a particular flexible part.

  • Footwear midsoles and injected sports components ↗

    Foaming and injection molding · Selected Arkema Pebax industrial PEBA grades; polymer-family context, not eSUN PEBA-90A FDM · Manufacturer-listed applications

    Arkema documents Pebax in foam midsoles and injected sports components and explains its low energy loss. These are applications of selected industrial PEBA grades and processing routes, not measured energy-return values for the listed eSUN filament.

Sources
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Representative catalog values. Check the exact grade and its linked conditions before using a setting.

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Properties & source data

15 documented fields

Open a topic to explore the complete data. Each value keeps its original conditions, units and dated sources.

Material & market4 fields
PEBA (polyether block amide) — Identity & Market
Property and unitPublished value and conditionsSources and dates
Base polymer / chemistryPolyether block amide: rigid polyamide and flexible polyether blocks.
1 source
Density (g/cm³)1.01 g/cm³ (GB/T 1033; eSUN manufacturer data)
1 source
Spool sizes & diameters1.75 mm diameter, 1 kg spool.
1 source
Typical applicationsManufacturer applications include footwear, sports equipment and cushioning.
1 source
Print settings5 fields
PEBA (polyether block amide) — Printing Parameters
Property and unitPublished value and conditionsSources and dates
Nozzle temperature (°C)230–260 °C; 240 °C recommended.
1 source
Bed temperature (°C)60–90 °C
1 source
Part cooling fan10–50% fan recommended; mechanical-test specimens used 50–100%.
1 source
Bed surface & adhesion aidPEI build plate
1 source
Maximum volumetric flow (mm³/s; see test conditions) (mm³/s)9 mm³/s maximum in eSUN spiral-vase test; mechanical specimens used 2 mm³/s. Linear recommendation 25–110 mm/s is a separate quantity.
1 source
Moisture & drying1 field
PEBA (polyether block amide) — Moisture Behaviour
Property and unitPublished value and conditionsSources and dates
Drying temperature & time70–75 °C for 6–8 h; re-dry after receiving or extended exposure.
1 source
Strength & mechanical properties4 fields
PEBA (polyether block amide) — Mechanical Properties
Property and unitPublished value and conditionsSources and dates
Tensile strength (XY) (MPa)>16.5 MPa printed XY, GB/T 1040; manufacturer lower bound, not an exact measurement.
1 source
Elongation at break (%)>520% printed XY, GB/T 1040; manufacturer lower bound.
1 source
Layer adhesion / Z tensile (MPa)7.5 MPa printed Z, GB/T 1040 (manufacturer test)
1 source
Hardness (scale-specific) (Shore A / Shore D / Rockwell)90 Shore A nominal grade designation; do not compare numerically with Shore D or Rockwell.
1 source
Heat & temperature1 field
PEBA (polyether block amide) — Thermal Properties
Property and unitPublished value and conditionsSources and dates
Melting point / Vicat (°C)110 °C Vicat softening (GB/T 1633, 120 °C/h, 10 N); not HDT or a continuous-use rating.
1 source
How to read these values

Values describe representative grades, not every spool. Manufacturer datasheets and independent tests retain their source labels and dates. Printed orientation, test method, conditioning and formulation can change results. Unknown values are —. A listed use is not a certification. Shore A, Shore D and Rockwell hardness are separate scales.

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Product listings and datasheets

1 listing

Historical USD/kg snapshots. Read each listing’s sale/from qualifiers, spool mass, source date, shipping and tax notes. Product figures are separate from the material summary.

Browse 1 product from 1 brand
eSUNPEBA-90A60.99 USD/kg

From $60.99 sale price for a 1 kg spool ($60.99/kg); $69.99 regular price. US/USD eSUN page, checked 2026-10-17. Variant availability, shipping and tax extra.

Manufacturer data only. TDS v1.0 Aug 2025; price checked 2026-10-17.

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eSUN PEBA-90A — product-specific figures
Base polymer / chemistryPolyether block amide: rigid polyamide and flexible polyether blocks.
Density (g/cm³)1.01 g/cm³ (GB/T 1033; eSUN manufacturer data)
Spool sizes & diameters1.75 mm diameter, 1 kg spool.
Typical applicationsManufacturer applications include footwear, sports equipment and cushioning.
Nozzle temperature (°C)230–260 °C; 240 °C recommended.
Bed temperature (°C)60–90 °C
Part cooling fan10–50% fan recommended; mechanical-test specimens used 50–100%.
Bed surface & adhesion aidPEI build plate
Maximum volumetric flow (mm³/s; see test conditions) (mm³/s)9 mm³/s maximum in eSUN spiral-vase test; mechanical specimens used 2 mm³/s. Linear recommendation 25–110 mm/s is a separate quantity.
Drying temperature & time70–75 °C for 6–8 h; re-dry after receiving or extended exposure.
Tensile strength (XY) (MPa)>16.5 MPa printed XY, GB/T 1040; manufacturer lower bound, not an exact measurement.
Elongation at break (%)>520% printed XY, GB/T 1040; manufacturer lower bound.
Layer adhesion / Z tensile (MPa)7.5 MPa printed Z, GB/T 1040 (manufacturer test)
Hardness (scale-specific) (Shore A / Shore D / Rockwell)90 Shore A nominal grade designation; do not compare numerically with Shore D or Rockwell.
Melting point / Vicat (°C)110 °C Vicat softening (GB/T 1633, 120 °C/h, 10 N); not HDT or a continuous-use rating.
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