16kg at $21.49/kg | 17% Off | Flexible Production Pack, Free USA Shipping
Sixteen kilograms of High Speed TPU 95A. Any 16 colors from our TPU range. Vacuum-sealed per spool. Free shipping across the USA. At $21.49/kg — 17% off individual pricing — this is the production pack for operations that run flexible parts at volume: phone cases, gaskets, vibration dampeners, grips, protective bumpers, and wearable components.
⚠️ Before you order: TPU requires a direct drive extruder for reliable high-speed printing. On a standard Bowden setup (like a stock Ender 3), TPU is printable but slow — 15–25mm/s maximum. On a direct drive printer (Bambu Lab, Voron, Prusa MK4, Sovol SV06, or any Bowden machine with a direct drive upgrade), this High Speed formulation prints at 40–80mm/s+ reliably. If you're committing to 16kg of TPU for production, your extruder setup is the first thing to confirm.
What Is TPU 95A — In Plain Language
TPU stands for Thermoplastic Polyurethane. It's a rubber-like plastic that bends, stretches, compresses, and bounces back — but unlike a rubber band, you can 3D print it precisely. The "95A" is its hardness rating on the Shore A scale.
Think of a shopping cart wheel. It's firm enough to roll smoothly under load, but it absorbs the impact when the cart hits a crack in the floor. It flexes without snapping. That's 95A — the most printable and most versatile TPU hardness. It's stiff enough to feed through most extruders without buckling, yet flexible enough to produce parts that survive repeated bending, compression, and impact.
| Shore Hardness |
Feel |
Printability |
Best For |
| 85A |
Like a shoe insole — soft and squishy |
Difficult — direct drive only, very slow |
Wearables, ultra-soft grips |
| 95A |
Like a shopping cart wheel — firm but flexible |
✅ Most printable — works on most setups |
Phone cases, gaskets, bumpers, hinges |
| 98A+ |
Like a hard rubber eraser — barely flexes |
Easy — almost like rigid filament |
Semi-flexible structural parts |
High Speed Formulation — What It Changes
Standard TPU 95A tops out at 20–35mm/s before buckling, under-extrusion, or jamming. The reason is physics: flexible filament compresses under pressure inside the extruder gears. Push too fast and the filament bends sideways instead of going forward — the classic TPU jam.
High Speed TPU 95A is reformulated with a higher melt flow index — meaning the material flows more easily through the nozzle at the same pressure. The extruder doesn't have to push as hard, which reduces the buckling risk and allows sustained printing at 40–80mm/s on direct drive setups, with some formulations reaching 100mm/s+ on well-tuned machines.
For production operations, the math is straightforward: doubling print speed roughly halves the time per part. On a run of 50 phone cases, that's the difference between a 6-hour and a 12-hour machine cycle.
⚠️ Critical Setup: Direct Drive vs Bowden
| Extruder Type |
Max Speed (95A) |
Difficulty |
Notes |
Direct Drive
(Bambu, Voron, Prusa MK4, Sovol SV06, etc.) |
40–80mm/s+ |
✅ Recommended |
Short filament path = precise control. This is how High Speed TPU works as advertised. |
Bowden
(stock Ender 3, CR-10, stock Anycubic Kobra) |
15–25mm/s |
⚠️ Challenging |
TPU can buckle in the long tube. Printable but slow — not production-viable. Use Capricorn PTFE tube to reduce clearance. Zero or near-zero retraction required. |
AMS / Multi-Material Systems
(Bambu AMS, Box Turtle, etc.) |
N/A |
❌ Not recommended |
Flexible filament cannot reliably feed through the circuitous paths of AMS-style systems. Use an external spool holder with direct feed into the extruder for TPU. |
Pack Contents & Value Breakdown
| Spec |
Detail |
| Pack size |
16 × 1kg spools (16kg total / 35.2 lbs) |
| Material |
High Speed TPU 95A (Thermoplastic Polyurethane) |
| Shore hardness |
95A |
| Filament diameter |
1.75mm ±0.02mm |
| Color selection |
Any 16 colors from our full TPU range |
| Price per kg |
$21.49 (17% off individual spool pricing) |
| Packaging |
Vacuum-sealed with desiccant — each spool individually sealed |
| Shipping |
Free across the USA |
Print Settings for High Speed TPU 95A
TPU settings are counterintuitive compared to rigid filaments in two key areas: retraction is much lower than you'd expect, and cooling fan is less critical than with PLA. Follow these settings as your baseline and tune from there.
| Setting |
Direct Drive |
Bowden |
Notes |
| Nozzle temperature |
220–235°C |
225–240°C |
Start at 225°C. Raise 5°C for under-extrusion. Lower 5°C for excessive stringing. TPU has a narrow sweet spot — stay within 10°C of your target. |
| Bed temperature |
40–60°C |
40–60°C |
50°C on PEI is the standard. TPU adheres aggressively — let the bed cool fully before removing prints, or apply a thin glue stick as a release agent. |
| Print speed — walls |
25–50mm/s |
15–20mm/s |
Start slow and increase 5mm/s at a time. Clicking from the extruder = you've gone too fast. Back off immediately. |
| Print speed — infill |
35–60mm/s |
20–25mm/s |
Infill can go slightly faster than walls. |
| Travel speed |
120–150mm/s |
80–100mm/s |
⚠️ Don't set travel speed too high on Bowden — fast travel can yank the soft filament mid-move. |
| First layer speed |
15–20mm/s |
10–15mm/s |
Always slow — TPU needs time to settle into the bed surface. |
| Retraction distance |
0.5–2mm |
3–5mm |
⚠️ This is the #1 TPU mistake: too much retraction. Unlike PLA (where 4–6mm is normal), TPU stretches instead of retracting when you pull back too far. Stretching = over-extrusion on the next move = jam. Start at 1mm direct drive, 4mm Bowden. Increase only if needed. |
| Retraction speed |
25–30mm/s |
20–25mm/s |
Moderate retraction speed. Don't go below 20mm/s — too slow leads to oozing. |
| Part cooling fan |
20–50% |
20–50% |
TPU doesn't need full cooling like PLA. Moderate fan helps surface quality. High fan at speed can cause layer brittleness. Disable fan for the first 3 layers. |
| Combing mode |
Enable (All or Not in Skin) |
Keeps travel moves inside the printed area — dramatically reduces stringing without needing more retraction. |
| Z-hop on travel |
Disable |
Z-hop causes pressure changes in TPU that worsen blobbing and stringing. Turn it off. |
| Drying (if needed) |
50–55°C for 4–6 hours |
⚠️ TPU absorbs moisture faster than most filaments. Wet TPU strings aggressively, produces rough surfaces, and can jam the extruder. If a previously well-tuned profile starts stringing suddenly, dry first. |
3 Most Common TPU Problems — and the Fast Fix
Extruder clicking / filament grinding
The extruder gear is slipping on the filament because back-pressure exceeds grip. Almost always caused by printing too fast. Fix: reduce speed by 10mm/s and increase nozzle temp 5°C. If clicking persists, check for a partial clog or a gap in the Bowden tube.
Stringing everywhere
Three possible causes, fix in this order: (1) wet filament — dry at 50°C for 4 hours first; (2) retraction too short — increase by 0.5mm increments; (3) temperature too high — lower 5°C. Enable Combing mode in your slicer before adjusting retraction — it solves most TPU stringing without touching hardware settings.
Print stuck to bed / won't release
TPU bonds very aggressively to PEI and glass when warm. Never try to remove a TPU print from a hot bed — let it cool fully to room temperature first. The print will release on its own. For repeated production runs, apply a thin glue stick layer as a release agent.
Design Tips for Flexible Parts
-
Wall count controls flexibility — fewer walls = more flexible final part. More walls = stiffer. A phone case with 2 walls will flex differently than one with 4 walls, even using the same filament. Tune wall count for your stiffness target.
-
Lower infill = more flexible — 15–25% gyroid or honeycomb infill produces the most flexible results. Grid infill creates stiffness in the infill direction — avoid it for parts that need to flex uniformly.
-
Avoid supports where possible — removing supports from TPU damages the surface and tears layers. Orient parts to minimize or eliminate supports.
-
No rafts needed — TPU adheres well to most build surfaces. Rafts add post-processing time and leave a rough bottom surface.
Best Applications for This Pack
| Application |
Why TPU 95A Works |
| Phone cases and device protection |
Absorbs drop impact, fits tightly without cracking, survives repeated removal |
| Gaskets and seals |
Compresses to fill gaps, springs back — no silicone cutting or sourcing required |
| Vibration dampeners and feet |
Absorbs mechanical vibration on 3D printers, motors, and equipment mounts |
| Grips and handles |
Tactile, non-slip surface that conforms slightly under grip pressure |
| Cable management clips and strain reliefs |
Flexes to snap over cables without tools, holds without cracking |
| Wearable and medical-adjacent parts |
Skin-safe, flexible, conforms to body — wristbands, braces, custom orthotics |
| Shoe insoles and cosplay wearables |
Customizable geometry, shock-absorbing, durable under repeated compression |
Storing 16 TPU Spools
TPU is significantly more hygroscopic than PLA or PETG — it absorbs moisture faster and the effects show up quickly in print quality. At 16 spools, a solid storage system isn't optional:
-
Keep sealed until the spool goes on the printer — every spool ships vacuum-sealed with desiccant. Don't break the seal until you're loading the machine.
-
Use a filament dry box while printing — especially in coastal or humid climates. An open spool of TPU on a printer in a humid environment can degrade noticeably within a few hours of printing.
-
Dry any spool that's been open more than a few days in humid conditions — 50–55°C for 4–6 hours before the next print session eliminates moisture-related stringing and surface issues.
-
Batch consistency: all 16 spools ship from the same manufacturing batch — matched flexibility, color, and print behavior across your entire production run.
Who Is This 16-Pack For?
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Print farms producing flexible parts at volume — phone cases, grips, gaskets — where TPU is a core SKU and reordering individual spools every week creates procurement friction. 16kg keeps multiple machines running for weeks.
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Product makers and Etsy sellers running a flexible product line who have validated demand and are ready to move from per-spool ordering to production pricing. 17% off adds meaningful margin to flexible part economics.
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Direct drive printer operators — Bambu Lab, Voron, Prusa MK4, RatRig — who can take full advantage of the High Speed formulation at 40–80mm/s+ and need the volume to support it.
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Engineering and prototyping teams that regularly produce gaskets, seals, vibration isolation mounts, and flexible test components — and want a stocked supply at wholesale pricing rather than sourcing per project.
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Makerspaces and fab labs that offer flexible printing as a service and need a reliable, well-priced stock of 95A to cover member requests without constantly restocking.
Browse individual spools in our TPU Flexible Filament collection. Explore everything in our 3D Printing Filaments guide.
