




Formlabs Durable Resin
RESIN · FORM 3 & 4 SERIES
DURABLE RESIN
Overview
Durable Resin is a pliable, impact-resistant, and lubricious material for squeezable parts and low-friction assemblies. Parts printed in Durable Resin are robust and have low friction, with similar strength and stiffness to polyethylene (PE), and a coefficient of friction comparable to Delrin® (POM). Choose Durable Resin for squeezable prototypes, low-friction assemblies, and jigs and fixtures undergoing significant impacts.


Why Choose Durable Resin
Durable Resin is ideal for prototyping squeezable parts, low-friction assemblies, and jigs or fixtures that undergo high impact. With high impact resistance, flexibility, and a lubricious surface, it allows for parts that can deform under pressure and return to shape while resisting wear. Printed components emulate the properties of polyethylene for high durability and performance. Typical applications include manufacturing aids, rapid prototyping, squeezable prototypes, low-friction assemblies, and impact-resistant jigs and fixtures.
Technical Specifications
| Parameter | Durable Resin |
|---|---|
| Ultimate Tensile Strength | 28.0 MPa |
| Tensile Modulus | 1000.0 MPa |
| Elongation at Break | 55.0 % |
| Flexural Strength | 24.0 MPa |
| Flexural Modulus | 660.0 MPa |
| Notched Izod | 114.0 J/m |
| Unnotched Izod | 710.0 J/m |
| Heat Deflection Temp. @ 0.45 MPa | 41.0 °C |
| Thermal Expansion | 106.0 μm/m/°C |
| Compatible Printer | Form 4, Form 4B, Form 4L, Form 4BL, Form 3, Form 3L, Form 3B, Form 3BL, Form 2 |
NOTE: V2.1 End of Support for Form 4 Series
Durable Resin V2.1 for Form 4 generation printers will no longer be available for direct purchase beginning on August 31, 2026. Formlabs recommends switching to Tough 1000 Resin.














