Grey Resin V4.1
Versatile general-purpose SLA resin for precise prototyping and fine details.
Grey Resin V4.1 is the most widely-used Formlabs SLA photopolymer. It offers a good balance of stiffness, accuracy, and surface finish at a competitive price point. The matte grey surface highlights surface details and is easy to sand, prime, and paint. Suitable for appearance models, concept prototypes, and any application requiring fine geometric detail.
Starting from €36 / part · Lead time from 2 business days
Key Technical Values
Tensile Strength
Stiffness (E)
Heat Defl. Temp
Under load
Elongation
Density
ℹ ASTM D638 / ASTM D790 / ASTM D648.
Mechanical Properties
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | 65 | MPa |
| Tensile Modulus (E) | 2800 | MPa |
| Flexural Strength | 95 | MPa |
| Flexural Modulus | 2800 | MPa |
| Elongation at Break | 6 | % |
| Heat Deflection Temp (HDT) | 58 | °C |
| Density | 1.17 | g/cm³ |
Recommended Applications
Concept models and appearance prototypes
Dental study models (non-biocompatible grade)
Investment casting patterns
Small functional parts with tight tolerances
Not Recommended For
High-impact or repeated dynamic loading
Continuous service above 58 °C
Outdoor UV exposure without coating
Order & Documentation
Available Finishes / Colours
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SLA Technology
Stereolithography cures liquid photopolymer resin with a UV laser, layer by layer. Delivers the finest surface resolution of all additive processes.
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