TPU is a flexible 3D printing material with a rubber-like behavior. At HEDRAFT, we print TPU shock absorbers, pads, seals, and protective elements where flexibility, shock absorption, and wear resistance are needed.

TPU – flexible parts, dampers and seals

TPU is chosen when a component must flex, absorb shock, and resist cracking from impacts. It is used for dampers, feet, pads, seals, and protective elements where rigid plastics are unsuitable.

Where TPU fits

• Dampers and shock absorbers (vibration and shock absorption)

• Legs, stops, anti-slip elements

• Overlays and protective parts (surface, edge, and body protection)

• Seals and gaskets (as required, under suitable conditions)

• Flexible holders and fasteners (clips, latches with elasticity)

• Tool covers/covers (grip comfort, protection)

• Elastic connectors and bushings

• Parts where “non-fragility” when impacted/dropped is important

When TPU Isn't the Best Choice

• High rigidity and geometry are required – PETG / PETG HF / PETG-CF are better

• Heavy loads and wear in mechanics - better PA / PAHT-CF

• Constant Street + UV — we often choose ASA (or solve it according to the problem)

• Heat resistance near heating is required - ABS/ASA/PAHT-CF

Why choose TPU?

• Flexibility and shock absorption : the part works like rubber

• Impact resistance : does not crack like hard plastics

• Comfort and protection : anti-slip, softening, surface protection

• Good for functional "soft" elements in assemblies

What we check before printing TPU

• What should the firmness/elasticity be (soft/medium/hard)

• Will there be contact with oils/chemicals/water (important for selection)

• Operating temperature: is there heating?

• Load: compression/tension/bending/friction

• Geometry: Are there thin walls and how will the part be mounted?

• Is a precise fit required or is a little “elasticity” acceptable?

Examples of TPU products

• Dampers, vibration mounts, shock absorbers

• Legs and anti-slip stops

• Gaskets and seals (depending on conditions)

• Covers/covers/protective elements

• Flexible fasteners and clips

Frequently asked questions:

Is TPU "rubber"?

TPU is not rubber, but it behaves very similarly: it bends, absorbs shock, and does not break like hard plastics.

Is it possible to print a seal from TPU?

Can TPU be used outdoors?

Is TPU suitable for parts that will be constantly rubbing?

TPU is wear-resistant, but under high friction/load conditions, the choice of material depends on the conditions. Sometimes PA is better, sometimes TPU, and sometimes a combination of both.

Yes, but it's important to understand the conditions: temperature, contact with liquids, pressure. We'll suggest the right shape and material for the job.

Yes, but long-term UV exposure and weather conditions depend on the specific TPU and conditions. For strictly "outdoor" rigid parts, we usually use ASA.

What to choose: TPU or PETG?

PETG is for rigid, functional parts. TPU is used when flexibility, shock absorption, and anti-slip properties are needed.

Is TPU suitable for clips and latches?

Yes, if you need a flexible latch. But we design it taking into account the TPU's ability to "flex" and require proper geometry.