Collection: TPE/TPU

TPE/TPU Flexible Filaments

Unlock soft, stretchy potential with TPE/TPU filaments designed for real-world flexibility. Whether you’re prototyping wearables, printing gaskets, or making impact-resistant parts, our TPE/TPU materials provide durable elasticity without sacrificing print quality. These filaments stretch, flex, and bounce back into shape — making them ideal for any application where standard PLA would snap.

At Protopasta, we handcraft every spool with the same care and curiosity that drives our entire lineup. Our flexible materials are developed with performance in mind, whether you need soft-touch finishes, bendable movement, or serious toughness. You get filaments that print cleanly and hold up in the real world — all made by makers, for makers.

Flexible Materials That Perform Under Pressure

What Is TPE/TPU Filament?

TPE (Thermoplastic Elastomer) and TPU (Thermoplastic Polyurethane) are flexible filaments that stretch without breaking. While similar, TPE is usually softer and more rubbery, while TPU offers slightly more stiffness and printability. Both are perfect for printing parts that need to flex or absorb impact.

Use these materials for seals, phone cases, RC tires, or anything needing high wear resistance and elasticity. Their soft-touch feel and strong rebound make them favorites in both functional and fun prints.

Why Protopasta Flexible Filaments Stand Out

We don’t just sell flexible filament — we develop it hands-on in our Washington-based lab. At Protopasta, every formula is tested, tweaked, and optimized by our in-house team.

Our approach gives us better control over flow characteristics, durability, and finish. That means you get filaments that print smoother and perform better, whether you’re creating flexible tools or shock-absorbing models.

Flexible, Functional & Surprisingly Easy to Print

TPU Filament That Balances Flex and Strength

TPU filament offers the ideal middle ground between flexibility and toughness. It holds its shape under stress, returns to form when bent, and resists wear over time.

That makes it a great choice for bumpers, hinges, or protective gear. And with Protopasta's optimized formulas, it flows cleanly through most FDM printers — no jamming, curling, or stringy messes.

TPE Filament for Ultra-Soft Applications

If you’re after maximum flexibility, TPE filament is your go-to. It’s softer than TPU and ideal for printing parts that bend, stretch, and compress easily.

Print anything from rubbery grips to soft buttons and stress-relief items. TPE offers comfort, elasticity, and a smooth finish — all from a standard 3D printer.

Print Smart with Flexible Filaments

How to Dial in for Flexible Success

Flexible materials behave differently from rigid ones. For best results, slow your print speed and minimize retraction to reduce stringing. A direct-drive extruder is preferred, but bowden setups can work with the right tuning.

Keep filament dry, and make sure your bed adhesion is solid. With a little patience, flexible filaments become a go-to tool in your material lineup.

Elastic Filament Built for Creative Freedom

We make filaments for real makers — and that includes elastic filament options that inspire creativity. Whether you’re experimenting with texture, designing wearables, or testing shock resistance, Protopasta gives you the tools to move beyond rigid limitations.

Made in small batches and backed by our maker-first mindset, these materials don’t just flex — they expand what your printer can do.