
Formlabs Grey Pro Resin
RESIN · FORM 3 SERIES
GREY PRO RESIN
Overview
Grey Pro Resin is a tough and heat-resistant material with low creep that offers increased elongation and improved toughness compared to Formlabs General Purpose Resins. It is a versatile material suitable for concept modeling, looks-like prototypes, and functional prototyping with rigorous hands-on testing. Parts printed in Grey Pro Resin feature high precision, smooth surfaces, and high detail retention.


Why Choose Grey Pro Resin
Grey Pro Resin is engineered for high accuracy, moderate elongation, and resistance to deformation over time under high stress. Its low creep and high heat resistance allow parts to hold their shape and withstand exposure to hot air, gas, and fluid flow. With improved toughness and impact absorption, parts withstand repeated handling without breaking. Recommended applications include mold masters for plastics and silicones, injection-molded product prototypes, form and fit testing, and manufacturing jigs and fixtures.
Technical Specifications
| Parameter | Grey Pro Resin |
|---|---|
| Ultimate Tensile Strength | 61.0 MPa |
| Tensile Modulus | 2600.0 MPa |
| Elongation at Break | 13.0 % |
| Flexural Strength | 86.0 MPa |
| Flexural Modulus | 2200.0 MPa |
| Notched Izod | 19.0 J/m |
| Heat Deflection Temp. @ 0.45 MPa | 78.0 °C |
| Heat Deflection Temp. @ 1.8 MPa | 62.0 °C |
| Thermal Expansion | 79.0 μm/m/°C |
| Compatible Printer | Form 3, Form 3L, Form 3B, Form 3BL, Form 2 |













