Engineering Materials
Below is a list of Engineering Materials
//Smooth, impact-resistant resin for functional prototypes with a polished, production-like finish.
Durable Resin is a tough, flexible engineering resin designed for parts that need to absorb impact, resist wear, and maintain a smooth, glossy surface finish — closely mimicking the look and feel of polypropylene. It is well-suited for consumer-facing functional prototypes, snap-fit assemblies, and components that require repeated contact without surface degradation.
While Tough 1000 Resin has replaced it as the primary choice for high-performance ductile applications, Durable Resin remains a strong option for applications where surface finish and a polished, production-like appearance are as important as mechanical performance. Its low friction surface makes it particularly useful for sliding, mating, or contact surfaces where smoothness directly affects part function.
Durable Resin is well-suited for product designers and engineers who need functional prototypes with a smooth, finished appearance and resistance to repeated impact and wear.
Key Benefits
- Tough, flexible formulation that absorbs impact and resists wear over repeated use cycles
- Smooth, glossy surface finish that closely mimics polypropylene for production-like prototypes
- Low friction surface ideal for sliding, mating, and contact surfaces
- Suitable for snap fits, wearable components, consumer product prototypes, and functional assemblies
Durable Resin Compatibility
Download Material Data Sheet
//Static-dissipative resin for ESD-safe prototypes and production tooling in electronics manufacturing.
ESD Resin is a specialty engineering material designed to safely dissipate electrostatic discharge, protecting sensitive electronic components from static-induced damage in manufacturing and assembly environments. With a surface resistivity of 10⁵–10⁸ Ω, it provides reliable static-dissipative performance across custom jigs, fixtures, trays, and enclosures used on electronics production lines.
Beyond its ESD properties, it delivers ABS-like impact strength and stiffness — with 44.2 MPa tensile strength and 26 J/m notched Izod impact resistance — making it durable enough for repeated use on the factory floor. It also actively repels dust and powder, reducing contamination risk in precision assembly environments. ESD Resin prints, washes, and cures using the same workflow as other Formlabs engineering resins, requiring no special handling.
ESD Resin is well-suited for electronics manufacturers, automation engineers, and production line teams who need custom, on-demand ESD-safe tooling and fixtures without the cost or lead time of outsourced fabrication.
Key Benefits
- ABS-like impact strength and stiffness for durable, factory-floor-ready parts
- Actively repels dust and powder to reduce contamination in precision assembly environments
- Ideal for ESD-safe jigs, trays, fixtures, and component enclosures
- Standard print, wash, and cure workflow — no special handling required
ESD Resin Compatibility
Download Material Data Sheet
//UL 94-certified, halogen-free resin for self-extinguishing parts in safety-critical applications.
Flame Retardant Resin is a specialty engineering resin certified to UL 94 V-0 at 3 mm thickness, producing self-extinguishing, halogen-free parts with favorable flame, smoke, and toxicity (FST) ratings. It also meets FAR 25.853 Appendix F Part I for aerospace flammability requirements and ASTM E662 for smoke and toxicity — making it one of the few 3D printing materials suited for certified, safety-critical part production across aerospace, automotive, railway, and industrial electronics applications.
Stiff and heat-resistant with a tensile modulus of 2.9 GPa and a heat deflection temperature of 111°C at 0.45 MPa, it produces functional parts that maintain structural integrity in high-temperature environments where ignition risk is a concern. It is a practical alternative to traditional manufacturing for custom jigs, fixtures, interior components, and protective housings that must meet regulatory flammability standards.
Flame Retardant Resin is well-suited for engineers in aerospace, automotive, defense, and electronics manufacturing who need certified, fire-safe parts and tooling without the cost and lead time of traditional fabrication.
Key Benefits
- UL 94 V-0 certified at 3 mm — self-extinguishing without dripping
- Meets FAR 25.853 Appendix F Part I for aerospace flammability requirements
- ASTM E662 rated for favorable flame, smoke, and toxicity performance
- Halogen-free formulation for safety-conscious applications
- Heat deflection temperature of 111°C and tensile modulus of 2.9 GPa
- Ideal for aerospace interior components, automotive parts, industrial electronics, and safety fixtures
Flame Retardant Resin Compatibility
Download Material Data Sheet
//Highest heat deflection temperature in the Formlabs library for thermal testing and hot flow applications.
High Temp Resin is Formlabs’ most heat-resistant SLA material, with a heat deflection temperature of 238°C at 0.45 MPa — making it the right choice for parts and tooling that operate in high-temperature environments where standard engineering resins would fail. It is specifically designed for applications involving hot air, gas, and fluid flow, as well as heat-resistant mounts, housings, and manufacturing fixtures that must maintain dimensional stability under sustained thermal load.
With a 49 MPa ultimate tensile strength and 95 MPa flexural strength post-cured, it delivers solid mechanical performance alongside its thermal resistance. While not as stiff as Rigid 10K, it is the superior choice when elevated temperature performance is the critical requirement rather than maximum stiffness.
High Temp Resin is well-suited for engineers who need to validate designs under thermal stress, produce heat-resistant tooling, or manufacture components for applications involving sustained exposure to high temperatures.
Key Benefits
- Heat deflection temperature of 238°C — the highest of any Formlabs SLA resin
- Designed for hot air, gas, and fluid flow applications
- 49 MPa ultimate tensile strength and 95 MPa flexural strength post-cured
- Ideal for heat-resistant mounts, housings, fixtures, and thermal testing components
- Maintains dimensional stability under sustained thermal load
High Temp Resin Compatibility
Download Material Data Sheet
//Maximum stiffness glass-filled resin for zero-deflection industrial parts and tooling.
Rigid 10K Resin is the stiffest material in the Formlabs resin library, a glass-filled engineering resin with a tensile modulus of 10 GPa and mechanical properties that rival glass and fiber-filled thermoplastics. It is designed for applications where dimensional stability, resistance to bending, and high thermal performance are the absolute priority — including injection mold inserts, fluid manifolds, high-precision fixtures, and components operating in extreme thermal environments.
With a heat deflection temperature of 238°C at 0.45 MPa — the highest of any Formlabs resin — Rigid 10K maintains structural integrity under intense thermal stress where other resins would deform. Its 88 MPa ultimate tensile strength and 158 MPa flexural strength far exceed ABS-class materials. On the Form 4 Series, improved chemistry takes advantage of the Low Force Display engine to produce parts 3x faster than previous generations without sacrificing accuracy.
Rigid 10K Resin is well-suited for engineers and tooling specialists who need the highest available stiffness and heat resistance in a 3D-printed part, particularly for precision industrial tooling, aerospace components, and high-temperature fluid handling applications.
Key Benefits
- 10 GPa tensile modulus — the highest stiffness material in the Formlabs resin library
- Heat deflection temperature of 238°C for extreme thermal stability
- 88 MPa ultimate tensile strength and 158 MPa flexural strength, exceeding ABS-class materials
- Chemical and pressure resistant for high-demand industrial environments
- 3x faster print speeds on Form 4 Series compared to previous generations
- Ideal for injection mold inserts, fluid manifolds, aerospace components, and precision tooling
Rigid 10K Resin Compatibility
Download Material Data Sheet
//Glass-filled, PEEK-like resin for stiff, load-bearing parts that resist deformation.
Rigid 4000 Resin is a glass-filled engineering resin with stiffness comparable to PEEK and PEKK thermoplastics, designed for parts that must hold tight tolerances under load, pressure, and torque without deflecting. Its glass reinforcement provides exceptional tensile strength and resistance to deformation over time, making it well-suited for thin-walled parts, precision mounts, brackets, and tooling where rigidity is a priority.
With a tensile strength of 69 MPa, a heat deflection temperature of 77°C, and resistance to a broad range of industrial chemicals, Rigid 4000 strikes a balance between stiffness and toughness that Rigid 10K does not — making it the more practical choice for structural applications that don’t require maximum stiffness but still demand reliable, long-term performance. Its smooth, polished finish delivers a high-quality surface appearance on both prototypes and end-use parts.
Rigid 4000 Resin is well-suited for engineers who need precise, load-bearing parts with PEEK-like rigidity, chemical resistance, and the ability to withstand elevated temperatures in demanding industrial environments.
Key Benefits
- Stiffness comparable to PEEK and PEKK for high-strength structural applications
- Glass-filled formulation for exceptional tensile strength and resistance to deformation
- Tensile strength of 69 MPa and heat deflection temperature of 77°C
- Chemical and temperature resistant for demanding industrial and manufacturing use
- Smooth, polished finish for precise, production-quality prototypes and end-use parts
- Ideal for thin-walled parts, mounts, brackets, molds, and precision tooling
Rigid 4000 Resin Compatibility
Download Material Data Sheet
//Rugged, ABS-like resin for structural prototypes, jigs, and snap-fit enclosures.
Tough 2000 Resin V2 is a strong, stiff engineering resin with mechanical properties comparable to ABS, combining toughness with high temperature and creep resistance for demanding functional applications. The V2 formulation delivers 3x higher fracture toughness than the previous version, with a fracture toughness of 305 J/m² and only 1.3% creep strain under a 4 MPa load after two weeks — making it a reliable choice for parts that must hold tight tolerances under sustained stress.
With a heat deflection temperature of 70°C and 79% elongation at break, it handles both thermal and mechanical loads better than standard general purpose resins. A darker, more matte finish enhances surface detail contrast, making it well-suited for both prototyping and end-use manufacturing aids where appearance and performance both matter.
Tough 2000 Resin V2 is well-suited for engineers who need robust jigs, protective shells, structural housings, and snap-fit assemblies that resist shattering, long-term deformation, and elevated temperatures.
Key Benefits
- Comparable strength and stiffness to ABS for structural prototypes and production parts
- 3x higher fracture toughness compared to Tough 2000 Resin V1
- Only 1.3% creep strain under 4 MPa load after two weeks for excellent dimensional stability
- Heat deflection temperature of 70°C for parts that perform under thermal stress
- 79% elongation at break for toughness without brittleness
- Dark matte finish with improved scratch resistance for clean, detailed parts
Tough 2000 Resin V2 Compatibility
Download Material Data Sheet
//Resilient, polypropylene-like resin for snap fits, living hinges, and compliant mechanisms.
Tough 1500 Resin V2 is an engineering resin with strength, stiffness, and toughness comparable to polypropylene, designed for parts that need to flex, bend, and spring back without fracturing. The V2 formulation delivers 10x higher fracture toughness than the previous version, and with 155% elongation at break and 8,000 Ross flex fatigue cycles, it is one of the most resilient materials in the Formlabs engineering resin library.
Its balance of stiffness and ductility makes it the right choice for compliant mechanisms, clasps, self-tapping screw bosses, and snap-fit enclosures — parts that need to hold shape under sustained load while tolerating repeated deflection. A dark gray matte finish produces detailed, clean parts suitable for functional prototyping and end-use manufacturing aids.
Tough 1500 Resin V2 is well-suited for engineers who need functional prototypes and production parts that combine PP-like flexibility with the accuracy and repeatability of SLA 3D printing.
Key Benefits
- Comparable strength, stiffness, and toughness to polypropylene for resilient, flexible parts
- 10x higher fracture toughness compared to Tough 1500 Resin V1
- 155% elongation at break and 8,000 Ross flex fatigue cycles for reliable long-term performance
- Ideal for snap fits, living hinges, clasps, flexures, and self-tapping screw bosses
- Dark gray matte finish for clean, production-like appearance
Tough 1500 Resin V2 Compatibility
Download Material Data Sheet
//Ductile, impact-resistant resin engineered to perform like high-density polyethylene.
Tough 1000 Resin is a highly ductile engineering resin with strength, stiffness, and toughness comparable to HDPE, designed for parts that need to absorb impact, bend under load, and recover without cracking or shattering. Formulated to leverage the Form 4 Series print engine, it delivers 5x higher fracture toughness and 2x higher elongation at break compared to Durable Resin, along with improved temperature, creep, and aging resistance.
With 180% elongation at break and a Gardner impact strength of 128 in-lbs, it is well-suited for living hinges, snap-fit assemblies, functional brackets, and components that must endure repeated mechanical stress over time. Its dark gray matte finish produces clean, presentation-ready parts suitable for both prototyping and end-use applications.
Tough 1000 Resin is well-suited for engineers and product designers who need durable, impact-tolerant parts that handle repeated loading, flexing, and long-term wear without permanent deformation.
Key Benefits
- Comparable strength, stiffness, and toughness to HDPE for ductile, impact-resistant parts
- 5x higher fracture toughness and 2x higher elongation at break than Durable Resin
- 180% elongation at break for parts that flex without cracking or shattering
- Improved temperature, creep, and aging resistance for long-term functional use
- Dark gray matte finish for clean, presentation-ready prototypes and end-use parts
Tough 1000 Resin Compatibility
Download Material Data Sheet