TPU 98A · 1.75 MM ±0.03 · SHORE 98A
Flexible, not vague: Shore 98A with the fullest settings row we sell.
$15.99 (multi-packs to $89.99) on Amazon US
Flexible filament has a reputation for guesswork, so TPU 98A ships with the most complete verified settings row in the CHCKX catalog: Shore 98A, nozzle 210 to 230 °C, bed 0 to 35 °C, speed 30 to 100 mm/s, and a drying schedule of 5 to 8 hours at 60 °C before use. No folklore, just the numbers on the page.
The 98A hardness is the practical sweet spot: soft enough for gaskets, bumpers, and phone-case flex, firm enough to feed through a stock extruder without spaghetti. The color range is deliberately short at 7 solid colors: this is a line bought for what it does, not for how many shades it comes in.
BUY BY COLOR
TPU 98A · 1.75 MM ±0.03 · SHORE 98A
$15.99 (multi-packs to $89.99)
Selected: Black
Buy this color on AmazonPack sizes
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THE DATASHEET
| Property | Value |
|---|---|
| Diameter | 1.75 mm |
| Tolerance | ±0.03 mm |
| Shore hardness | 98A |
| Nozzle temp | 210–230 °C |
| Bed temp | 0–35 °C |
| Print speed | 30–100 mm/s |
| Drying | 5–8 h @ 60 °C before use |
| Density | ~1.21 g/cm³ ⓘ |
Values shown are representative for this material class. Final figures come from the manufacturer's datasheet. Request the TDS for batch-specific data.
ⓘ = Industry-representative value
PRINT SETTINGS
98A
Shore hardness
210–230 °C
Nozzle temp
0–35 °C
Bed temp
30–100 mm/s
Print speed
5–8 h @ 60 °C before use
Drying
USE-CASE GUIDANCE
Direct-drive extruders print TPU happiest. On Bowden setups, slow to the bottom of the 30 to 100 mm/s range and shorten retractions until stringing settles. The strand is a spring: the shorter and more constrained the filament path, the better.
See PCTGTPU drinks moisture faster than any rigid filament, and wet TPU bubbles at the nozzle. The verified schedule is 5 to 8 hours at 60 °C before use. Spools arrive dried and vacuum-sealed with desiccant; once opened, plan on re-drying before long jobs.
See PETGInfill percentage becomes a hardness dial in TPU: 20% prints a squishy bumper, 80% a firm wheel. Print seals as single-wall spirals where you can, and let the Shore 98A base do the sealing.
See PLAPrint tips
THE HONEST BIT
Every material has a job. Here is where this one belongs, and where it does not.
Best for
Not ideal for
FAQ
Like a skateboard wheel or a stiff shoe sole. It bends and rebounds, but a thick part still feels solid in the hand. Softer than 95A gel-type TPUs, firmer than a silicone band.
98A is on the firm side, which is exactly why we stock it: it feeds through Bowden setups that softer TPUs defeat. Print at the slow end of the speed range and tune retraction down.
TPU bonds aggressively to build surfaces. A cool bed protects your sheet and your part; heat is only there to help the first layer settle, not to hold the print down.
7 solid colors, named in English exactly as they are listed on Amazon and shown one by one in the color library above. There is no clear or translucent TPU in this line; if the part has to pass light, PETG ships a Transparent.
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