eSun TPU Colour Change Filament 95A

eSUN TPU 95A Color Change Filament 1.75mm 1KG – Temperature-Reactive Flexible Printing

eSUN TPU 95A Color Change is an innovative thermochromic flexible filament that changes color when exposed to temperature variations. At just 28°C, the filament transitions between colors – touch it with your hand and watch it transform. This combines the excellent flexibility of TPU 95A with the interactive fun of color-changing technology, creating prints that respond to body heat, warm beverages, or ambient temperature changes.

Ideal for creating interactive phone cases, temperature-indicating items, novelty gifts, and functional flexible parts where visual temperature feedback adds value and engagement.

eSUN TPU 95A Color Change Key Features

• Low Temperature Activation – Color changes at just 28°C (body temperature)
• Reversible Color Shift – Colors transition back and forth with temperature
• Shore 95A Hardness – Flexible yet durable like standard TPU
• High Elongation – Over 488% elongation at break for extreme flexibility
• UV Resistant – Good outdoor durability with low compression set
• Oil & Chemical Resistant – Suitable for various environments

eSUN TPU 95A Color Change Printing Parameters

eSUN TPU 95A Color Change Material Properties

TPU Color Change vs Standard TPU Comparison

TPU 95A Color Change Applications

• Phone Cases – Interactive cases that change with your grip
• Temperature Indicators – Visual feedback for warm/cold items
• Novelty Gifts – Interactive toys and promotional items
• Wearables – Watch bands and accessories that respond to body heat
• Educational Projects – Science demonstrations and STEM activities
• Prototypes – Temperature-sensitive functional parts

TPU Color Change Printing Tips

1. Dry Before Use – Dry at 55°C for 4+ hours for best results.
2. Direct Drive Extruder – Strongly recommended for reliable feeding.
3. Reduce Retraction – Minimize or disable retraction to prevent jams.
4. Slow Print Speed – Start at 20mm/s and increase gradually.
5. Loose Filament Path – Ensure filament can move freely without resistance.

eSUN TPU 95A Color Change Specifications

eSUN TPU 95A Color Change FAQ

Q: At what temperature does the color change occur?
A: The color transition begins at approximately 28°C. This means body heat from touching the print is enough to trigger the color change – simply hold or pinch the print to see it transform.

Q: Is the color change permanent?
A: No, the color change is fully reversible. The print will return to its original color when it cools below 28°C. This cycle can repeat indefinitely.

Q: Do I need a direct drive extruder?
A: Direct drive is strongly recommended for TPU materials. Bowden setups can work but require very slow speeds (15-20mm/s) and minimal retraction.

Q: How flexible is TPU 95A?
A: Shore 95A is moderately flexible – similar to a car tire or sturdy rubber band. It’s more rigid than softer TPU variants (87A/83A) but still very flexible compared to PLA or PETG.

Q: How should I store color change filament?
A: Store in a cool, dry place in the original vacuum-sealed bag. Avoid prolonged UV exposure which may affect the thermochromic additives over time.

Related Products

Looking for other flexible or specialty filaments? Explore our collections:

• TPU 87A Filament – Softer, more flexible TPU
• TPE Filament – Ultra-flexible options
• Color Change Filaments – More color-changing options
• All eSUN Products – Browse full eSUN range