PEBA-90A Black Filament 1.75mm 800g eSun

The PEBA-90A (Polyether Block Amide) from eSun is a highly elastic specialty filament with exceptional resilience, excellent low-temperature impact resistance, and a large elongation capability of over 520% elongation at break (XY). It combines the flexibility of an elastomer with the mechanical durability of an engineering plastic, making it ideal for applications where high resilience, shock absorption, and durability are required even at low temperatures. In model building, PEBA-90A has established itself as a superior tire material: The traction of printed tires is about three times higher than comparable TPU tires, which directly translates into significantly better grip and more precise handling. A key advantage over TPU is the largely constant material hardness over a wide temperature range – TPU tires become noticeably harder in winter and lose grip, while they become softer in summer and tend to deform; PEBA-90A retains its elastic properties almost unchanged in both cold and warm conditions.

Note: With transparent PEBA products, slight color differences may occur between different production batches. Occasionally, small black dots may appear along the lines of transparent parts; this is a normal manufacturing phenomenon and does not affect product performance or normal use.

Recommended Accessories:

Filament Dry Box

Characteristics:

Exceptionally high resilience and elasticity, comparable to technical rubber, for damping and spring elements
Elongation at break of over 520% (XY) for extreme shape changes without material failure
Excellent low-temperature impact resistance and cold resistance for use in low-temperature applications and outdoor areas
Low density of 1.01 g/cm³ for lightweight, elastic components in sports and medical fields
Consistent material properties over a wide temperature range – no hardening in winter and no softening in summer like TPU
High abrasion and wear resistance for durable, mechanically stressed elastomer components
Vicat softening point of 120 °C (10 N) for good heat resistance despite high flexibility

Application Examples:

Model building tires for RC cars, crawlers, and buggies with three times better grip than TPU tires and consistent driving behavior at any outdoor temperature
Insoles, shoe soles, and cushioning elements for sports shoes and orthopedic applications
Medical orthoses, splints, and flexible support structures with custom-fit geometry
Shock absorbers, buffers, and vibration isolators for machine and robotics applications
Flexible industrial components like seals, protective covers, and flexible connectors