Flexible Filaments

Flexible filament from Siraya is made for prints that bend, stretch, and rebound without breaking.

With options ranging from soft TPU to elastic PEBA blends, these materials give you freedom to create parts that are lightweight, durable, and impact-resistant.

At Siraya, we design flexible filaments that are easy to print and ready for real-world use.

Create Parts That Bend Without Breaking

Flexible filament is perfect for prints that need to flex, compress, or absorb shock. It’s strong enough to handle stress while staying elastic.

Elasticity That Feels Natural

These filaments rebound quickly and keep their shape after repeated use. They’re great for wearables, grips, and protective parts.

• Stretches without tearing
• Rebounds to original form
• Soft, rubber-like feel

Get Strength and Softness in One Material

Siraya flexible filaments balance toughness with comfort. You can print parts that are both durable and pleasant to handle.

Tough Yet Comfortable Performance

From TPU to PEBA, each blend offers different levels of softness and strength, so you can choose the right feel for your project.

• High impact resistance
• Smooth or grained surface options
• Soft textures for ergonomic designs

Print Lightweight Parts With Foaming Technology

Some flexible filaments are engineered with active foaming. This makes prints lighter without losing strength.

Lighter Weight With the Same Durability

Foamed flexible filament cuts part weight by up to 50%. It’s ideal for projects where softness and low weight matter.

• Reduces print density
• Adds fabric-like textures
• Keeps elasticity and durability

Enjoy Stable Printing for Flexible Materials

Siraya flexible filaments are optimized for smooth extrusion. They’re designed to work well on direct drive printers and advanced setups.

Reliable Printing Without the Jams

With the right settings, you can print flexible filament consistently. They’re tuned for better flow and fewer clogs.

• Works best with direct drive extruders
• Stable extrusion across different hardness levels
• Reduced risk of print failures

Explore More Collections You Might Like

• Flex TPU Filament for 3D Printing – TPU blends in multiple hardness levels for versatile flexible printing.
• Fibreheart ASA Filament Family – UV-stable ASA blends designed for outdoor and weather-resistant parts.
• Engineering Resin– Durable resins made for functional, impact-resistant prints.
• Flexible Resin Tenacious Family– Flexible resins with high toughness for protective and engineering uses.

Frequently Asked Questions on Flexible Filaments

What filaments are flexible?

Flexible filaments include TPU, TPE, and PEBA. These materials are designed to stretch and bend without breaking, making them useful for wearables, seals, and shock-absorbing parts. Their elasticity depends on hardness levels, usually measured in Shore A or D.

Is PLA or PETG flexible?

PLA and PETG are not considered flexible filaments. PLA is rigid and brittle, while PETG is tougher and slightly more impact-resistant but still not truly flexible. Neither can match the stretch and rebound of TPU or PEBA.

Can flexible filament be used on any printer?

Not all printers can handle flexible filament. Direct drive extruders are best because they shorten the path between the gears and nozzle, reducing jams. Bowden setups can work with tuning, but they often struggle with very soft materials.

Is PETG more flexible than TPU?

No, PETG is not more flexible than TPU. PETG is semi-rigid and can bend slightly without breaking, but TPU is designed to stretch and rebound. TPU filaments are much softer and elastic compared to PETG.