Siraya Tech Rebound PEBA 95A TDS

Download TDS in PDF version

1. Product Introduction

Rebound PEBA 95A Filament Key Features

  • 78% Energy Return – Springs back fast, perfect for dynamic parts.
  • 15–20% Lighter than TPU – Strong but lightweight.
  • Tough & Durable – Handles pressure and snaps back.
  • Chemical Resistant – Resists oils, greases, and solvents.
  • Nylon + TPE Blend – Combines strength with stretch.

⚙ Application

Siraya Tech Rebound PEBA 95A is the perfect material for:

  • High-Performance Sporting Goods: Running shoe midsoles, custom
    functional insoles, responsive bicycle saddles.
  • Robotics & Automation: Industrial shock absorbers, resilient robotic
    grippers, durable seals and gaskets.
  • Automotive & Drones: Vibration-dampening components, lightweight drone
    parts, chemically-resistant housings.
  • Functional End-Use Parts: Protective gear, high-rebound phone cases,
    custom wearable devices.

2. Property Data

Specifications

Data

Name

Rebound PEBA 95A

Color

Black

SKU

ST3025

Net weight (KG)

0.8

Enclosure for printer

Highly Recommended

Diameter (mm)

1.75mm (±0.05mm tolerance typical)

Recommended Nozzle Size

≥ 0.4mm

 


Mechanical Properties

Data

Method

Tensile Stress at Break (MPa)

39

ASTM D638

Young’s Modulus (MPa)

392

ASTM D638

Elongation at Break(%)

395

ASTM D638

Toughness (N·m·m^-3)

120

ASTM D638

Tensile stress at 100%

25

ASTM D412

Tensile stress at 200%

30

ASTM D412

Tensile stress at 300%

36

ASTM D412

 

Mechanical Properties

Data

Method

Shore Hardness

64D

ISO 7619

Vicat softening temperature ℃

133

ISO 306

Melting Point (℃)

220

ASTM D3418

Biocompatibility

√

-

Filament Density g/cm³ 

1 g/cm³

ISO 1183

 

3. Workflow

Drying and Storage

Note: PEBA is highly hygroscopic, meaning it readily absorbs moisture from the air. Wet filament leads to poor print quality (stringing, bubbling, weak parts, clogging).

Recommendation
  • Dry the filament thoroughly before every print, even if the spool is new.

Storage
  • When not in use, store the filament in a sealed, airtight bag or container with desiccant packs (like silica gel) to minimize moisture absorption.

Dry Steps
  • Use a dedicated filament dryer or convection oven at 50-60°C for at least 4-6 hours. Longer drying times may be needed if the filament has been exposed to humid air for extended periods.
  • Consider using a drying print box during long prints.

 

  • Printing Profile

Printer

Download Link

BambuLab

Creality

Qidi

Flashforge

 

  • Recommended Printing Conditions

Parameter

Recommendation

Notes

Nozzle Temperature

230-260°C

-

Bed Temperature

60-100°C

100°C for full plate large model print to prevent warping

First Layer

Print the first layer slower (e.g., 15-20mm/s) and slightly hotter (e.g., +5°C on nozzle) for best adhesion. Ensure proper nozzle height (z-offset).

Cooling Fan Speed

Use moderate part cooling (e.g., 70-100%)

Too much cooling can weaken layer adhesion; too little can worsen overhangs and stringing. Start low and increase if needed

Print Speed

30-120mm/s

PEBA can often be printed faster than TPUs at the same hardness level. Start conservatively (e.g., 40-60mm/s) and increase speed gradually while monitoring print quality. Reduce speed for complex geometries or fine details

Retraction

PEBA generally requires minimal retraction to prevent clogging and stringing. Start with low values of 0.4mm

-

 

Parameter

Recommendation

Flow Rate / Extrusion Mult.

Calibrate for optimal results. PEBA often requires a slightly lower flow rate (e.g., 93-96%) than rigid filaments. Print a calibration cube or object to check dimensions and extrusion quality.

Build Plate Adhesion
  • Use a brim or raft if printing parts with small contact areas or sharp corners.
  • Ensure the build plate is clean (isopropyl alcohol wipe).
  • Suitable surfaces include PEI (smooth or textured), glass with glue stick or Magigoo, or specialized flexible filament build surfaces.

Hardware Considerations
  • Extruder: Direct drive extruders generally provide the best results with flexible filaments, offering better filament control.
  • Nozzle: A standard 0.4mm brass nozzle works well. Ensure it is clean before starting. Larger nozzle sizes (0.6mm+) can make printing easier and faster.


  • Post Processing

Part Removal
  • Allow the bed to cool completely before attempting removal. Flexing the build plate (if applicable) usually helps release the print. Use a scraper carefully if needed.

Support Removal
  • Supports printed in PEBA can be challenging due to strong layer bonding.
  • Optimize support settings in your slicer (e.g., increase Z distance, use support interface layers with a compatible material if doing multi-material printing, reduce support density).
  • Use needle-nose pliers and flush cutters for removal.

Finishing
  • PEBA is difficult to sand effectively.
  • Use a sharp craft knife or deburring tool to carefully trim away strings, blobs, or support remnants.
  • Briefly applying heat (e.g., heat gun on low setting, very quick pass with a torch flame) can sometimes smooth surfaces or reduce fuzziness, but exercise extreme caution to avoid melting or burning the part. Practice on test prints first.