Flexible TPU 3D Printer Filaments
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Stretchy, soft, and sturdy, these filaments make durable parts that resist breakage despite repeated use. Stronger than ABS and PLA filaments, they create long-lasting parts, such as seals, sleeves, and gaskets, as well as components that take on high-impact forces, such as springs and snap-fit parts. These filaments don't require a heated printer bed, and they won't shrink or warp when cooling. Use them with a fused filament fabrication (FFF) 3D printer. In general, these flexible filaments require a slow feed rate so they don't jam. The softer your filament, the slower your feed rate will need to be. Store them in a sealed container with a desiccant, or use a dehumidifying cabinet, since ambient humidity will cause the plastic to degrade and weaken.
For the most flexible parts, use durometer 85A filaments. They're more flexible than other TPU filaments. For a quick print without sacrificing flexibility, choose durometer 95A filaments. They print much faster than other TPU filaments.
Tensile strength is the best measure of a filament's overall strength. Similar to the stress applied on a rope during a game of tug-of-war, it's the amount of pulling force a material can handle before breaking. A higher rating means a stronger filament. A tensile strength of 5,000 psi and above is considered good; 12,000 psi and above is excellent.
Maximum exposure temperature is the point at which a printed part will begin to deform. Above this temperature, your printed parts will start to lose structural integrity.
Spool | |||||||||||
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Dia., mm | Printing Temp. | For Printer Bed Temp. | Tensile Strength | Max. Exposure Temp. | For Min. Nozzle Opening Dia., mm | Dia., mm | Dp., mm | Wt., g | Color | Each | |
TPU Plastic—Durometer 85A (Medium Soft) | |||||||||||
1.75 | 225° to 235° C 437° to 455° F | 21° to 40° C 70° to 104° F | 580 psi | 44° C 111° F | 0.25 | 200 | 70 | 1,000 | Opaque Silver | 00000000 | 000000 |
TPU Plastic—Durometer 95A (Medium Soft) | |||||||||||
1.75 | 230° to 240° C 446° to 464° F | 21° to 40° C 70° to 104° F | 1,250 psi | 49° C 120° F | 0.25 | 200 | 70 | 1,000 | Opaque Silver | 00000000 | 00000 |