SLA – ESD Resin

Last updated: November 13, 2026

ESD Resin is a static-dissipative resin for SLA 3D printing, made for tooling, jigs, fixtures, and trays used in electronics manufacturing. Its surface resistivity of 10⁵ to 10⁸ Ω/sq protects sensitive components from uncontrolled static discharge, and its stiffness and impact strength hold up to daily use on the production line.

Request a Quote for ESD Resin Parts

What ESD Resin Is Best For

Tooling, jigs, and fixtures for electronics manufacturing
Custom trays for handling and storing components
Anti-static prototypes and end-use parts
Housings and fixtures for sensitive electronics in automotive and aerospace manufacturing

When another material is a better fit

Need ESD protection on a nylon part: see our ESD-safe 3D printing options
Need impact resistance without ESD: Tough 2000
Need heat resistance: High Temp Resin

Key Material Facts

ESD Resin is static dissipative: surface resistivity 10⁵–10⁸ Ω/sq and volume resistivity 10⁵–10⁷ Ω·cm (ANSI/ESD STM11.11)
Stiff and tough enough for production-line use: 1.9 GPa tensile modulus and 90 Shore D hardness
Heat deflection temperature: 62°C (144°F) at 0.45 MPa
High detail for demanding applications
Parts can be printed solid and air and fluid tight right off the printer
Works with glue joints and light welding; printed threads are possible, but Helicoil inserts are recommended
Resists water, oils, fuels, bleach, and mild acids and bases; swells in acetone (13.1%)

ESD Resin Material Properties

Version note: we currently print with the latest version of Formlabs ESD Resin.

Mechanical, thermal, and electrical properties (post-cured, from Formlabs’ published data sheet)

Property	Metric	English	Method
Ultimate tensile strength	44.2 MPa	6410 psi	ASTM D638-14
Tensile modulus	1.937 GPa	280.9 ksi	ASTM D638-14
Elongation at break	12%	12%	ASTM D638-14
Flexural strength	61 MPa	8860 psi	ASTM D790-17
Flexural modulus	1.841 GPa	267 ksi	ASTM D790-17
Notched Izod	26 J/m	0.489 ft-lbf/in	ASTM D256-10
Unnotched Izod	277 J/m	5.19 ft-lbf/in	ASTM D4812-11
Heat deflection temperature @ 1.8 MPa	54.2°C	129.6°F	ASTM D648-18
Heat deflection temperature @ 0.45 MPa	62.2°C	143.9°F	ASTM D648-18
Thermal expansion	123.7 µm/m/°C	68.7 µin/in/°F	ASTM E813-13
Surface resistivity	10⁵–10⁸ Ω/sq	10⁵–10⁸ Ω/sq	ANSI/ESD STM11.11
Volume resistivity	10⁵–10⁷ Ω·cm	10⁵–10⁷ Ω·cm	ANSI/ESD STM11.11
Shore hardness	90D	90D	ASTM D2240
Density	1.116 g/cm³	69.67 lb/ft³	ASTM D792

ESD Resin solvent compatibility

Percent weight gain over 24 hours for a printed and post-cured 1 × 1 × 1 cm cube immersed in each solvent.

Solvent	24 hr weight gain, %
Acetic acid 5%	0.5
Acetone	13.1
Bleach ~5% NaOCl	0.5
Butyl acetate	3.8
Diesel fuel	0.2
Diethylene glycol monomethyl ether	3.6
Hydraulic oil	0.2
Hydrogen peroxide (3%)	0.6
Isooctane (gasoline)	< 0.1
Isopropyl alcohol	2.6
Mineral oil (light)	0.1
Mineral oil (heavy)	0.1
Salt water (3.5% NaCl)	0.6
Skydrol 5	0.5
Sodium hydroxide solution (pH 10)	0.7
Strong acid (HCl, concentrated)	1.4
Tripropylene glycol monomethyl ether (TPM)	0.6
Water	0.7
Xylene	1.6

Download the Full ESD Resin Data Sheet

More information on ESD Resin is available from Formlabs, the material manufacturer.

Design Tips for ESD Resin

SLA parts are printed with supports that leave small marks where they touch the part. We orient each ESD Resin part so those marks land on non-critical surfaces, so tell us which faces are cosmetic or need to hold tight dimensions. Keep wall thickness as uniform as you can, and add drain holes to any hollow section so uncured resin can be cleaned out.

Our SLA Part Design Guide covers wall thickness, hole and pin sizes, snap fits, and how to get the most accurate SLA parts.

Finish and Color Options

ESD Resin parts are black. They can be finished to any of our sanding and bead blast finish levels:

We do not paint, Cerakote, or apply any other coating to ESD Resin parts. A coating on top of the part completely negates its static-dissipative properties.

ESD Resin Part Gallery

Close-up of a black ESD Resin SLA fixture