3D Printing Materials for

Engineering, Manufacturing, and Product Design

Our library of versatile, reliable Engineering Resins is formulated to help you reduce costs, iterate faster, and bring better experiences to market.

Grey Pro Tough Durable Elastic High Temp Flexible Tough Rigid

Choose Engineering Resins For:

Advanced Functionality

Resistance to Stress

Stability Over Time

Looking for Rigid 10K Resin

or Rigid 4000 Resin?


Visit our Rigid Resins family page

Solve Complex Engineering Challenges With a Range of Functional Materials

Whether you’re optimizing your manufacturing process, rapidly iterating through designs, or assessing form and fit, our Engineering Resins are formulated to withstand extensive testing and perform under stress.

Grey Pro Resin for Versatile Prototyping

Grey Pro Resin offers high precision, moderate elongation, and low creep. This material is great for concept modeling and functional prototyping, especially for parts that will be handled repeatedly.

Grey Pro Resin is ideal for:

  • Form and fit testing
  • Injection molded product prototypes
  • Mold masters for plastics, silicones, and more
  • Jigs and fixtures for manufacturing
Requires Resin Tank V2 for Form 3 and Resin Tank LT for Form 2. Grey Pro Resin decreases the lifetime of resin tanks. Read more about Resin Tank LT lifetime and Form 3 Resin Tank lifetime.
Flexural Modulus (GPa) 2.0 GPa 3.7 GPa 2.2 GPa
Tensile Modulus (GPa) 2.6 GPa 4.1 GPa 2.8 GPa
Elongation (%) 13.0% 5.6% 6.2%

Technical Data

An all-purpose functional prototyping material, Grey Pro has good elongation, high heat resistance, and low creep. Download the Grey Pro Data Sheet


High Temp Resin for High Thermal Stability

High Temp Resin offers a heat deflection temperature (HDT) of 238 °C @ 0.45 MPa, the highest among Formlabs resins. Use it to print detailed, precise prototypes with high temperature resistance.

High Temp Resin is ideal for:

  • Hot air, gas, and fluid flow
  • Heat resistant mounts, housings, and fixtures
  • Molds and inserts

Technical Data

High Temp Resin offers a heat deflection temperature (HDT) of 238 °C @ 0.45 MPa, the highest among Formlabs resins. Materials with higher HDT typically map to lower elongation.
High Temp 238°C 2.3%
Standard 73.1°C 6.2%
Rigid 88°C 5.6%
Grey Pro 77.5°C 13%
Tough 48.5°C 24%

Download the High Temp Data Sheet

1 Heat Deflection Temperature data obtained using the ASTM D 648-16 method.
2 Elongation at Break data obtained using the ASTM D 638-14 method.


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Compare Properties Across Materials

Formlabs Engineering Resins are designed to simulate a wide range of end-use materials. Compare mechanical properties to find the resins that best match your product requirements.

80 10 10 300 120 100 0 Tensile Strength [MPa] Tensile Modulus [GPa] Flexural Modulus [GPa] HDT @ 0.45 MPa [°C] IZOD Impact Strength [J/m] Elongation [%]