SainSmart PEBA 90A flexible filament 1.75 mm, black, 1 kg

The SainSmart PEBA listing, bullet by bullet

Five bullets: a PEBA 90A filament designed as a premium replacement for TPU, combining nylon toughness with elastomer flexibility; 20 % lower density than TPU for lighter parts such as drones and wearables; up to 78 % energy return, over 30 % more than TPU; up to 2× faster printing at higher flow, with hardness tuned by settings; and compatibility with most 1.75 mm FDM printers with dual-gear extruders.

PEBA in a TPU family

A different polymer sold against TPU. PEBA — polyether block amide — is a nylon-based elastomer. It belongs on this shelf because it competes for the same jobs, and the page names it for what it is rather than repeating “Super-TPU”.

Lighter and springier, as stated

20 % lower density and 78 % energy return are the maker’s figures, and both are given against TPU without saying which TPU. They describe why someone would pay more: lighter parts that spring back harder.

The price of the difference

At roughly three times the cost of the TPU spools reviewed here, PEBA is a material chosen for a specific property, not an everyday flexible filament.

Availability

At the last look-up, the German, French, Italian and Spanish Amazon stores were asking 55 € to 65 €.

It is sold in the American and British Amazon stores as well, in their own currency, which the euro figures above leave out on purpose.

Every figure here is Keepa’s reading on the date this page was last updated. Stock and prices can change at any time.