G10-ESD · matrix · default condition
G10-ESD Epoxy Matrix
Properties of the Epoxy Matrix condition, compared with the other G10-ESD grades.
Default choice for ESD-safe tooling, fixtures and trays needing G10 stiffness with dissipative surface resistivity.
What is G10-ESD Epoxy Matrix?
G10-ESD Epoxy Matrix is G10-ESD in the Epoxy Matrix condition — default choice for ESD-safe tooling, fixtures and trays needing G10 stiffness with dissipative surface resistivity. G10-ESD Epoxy Matrix has a tensile strength of 300 MPa (43.5 ksi), stronger than 50% of composite grades. Elongation at break is 2% and the elastic modulus is 20 GPa (2.9 Msi). G10-ESD Epoxy Matrix has a density of 1.85 g/cm³ (0.0668 lb/in³), heavier than 65% of composite grades. Its glass-transition temperature is 120°C (248 °F).
Advantages
- Low moisture uptake — 0.12%, better than 78% of composite grades
Limitations
- Hard to polish — 25/100, worse than 76% of composite grades
G10-ESD Epoxy Matrix properties
Typical room-temperature values for G10-ESD Epoxy Matrix — 7 properties are specific to this condition; the rest are grade-level values shared by every G10-ESD grade. Each bar shows where the value sits among the composite grades in FabDigit's library — further right is higher.
Physical4
G10-ESD Epoxy Matrix has a density of 1.85 g/cm³ (0.0668 lb/in³), heavier than 65% of composite grades. Its glass-transition temperature is 120°C (248 °F).
Mechanical12
G10-ESD Epoxy Matrix has a tensile strength of 300 MPa (43.5 ksi), stronger than 50% of composite grades. Elongation at break is 2% and the elastic modulus is 20 GPa (2.9 Msi).
Thermal8
G10-ESD Epoxy Matrix is rated for continuous service to 130°C (266 °F). It conducts heat at 0.3 W/m·K (0.173 BTU/hr·ft·°F), worse than 62% of composite grades. Thermal expansion is 14 µm/m·K (7.78 µin/in·°F).
Electrical3
G10-ESD Epoxy Matrix has an electrical resistivity of 1×10⁸ Ω·m.
Chemical & Environmental3
Corrosion resistance is excellent (85/100), better than 65% of composite grades. UV resistance is fair.
Sustainability4
Producing a kilogram of G10-ESD Epoxy Matrix takes about 120 MJ of energy and emits 7 kg of CO₂ — less than 57% of composite grades. Typical recycled content is 0%.
Manufacturability2
G10-ESD Epoxy Matrix's machinability is fair (38/100, better than 53% of composite grades).
Common Calculations4
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Other G10-ESD grades and fills
G10-ESD is also supplied in 4 other conditions. The full side-by-side table is on the G10-ESD overview.
- Epoxy MatrixDefaultDefault choice for ESD-safe tooling, fixtures and trays needing G10 stiffness with dissipative surface resistivity.300 MPa tensile
- FR-V0Specify for enclosures, guards and electrical assemblies that must carry a UL 94 V-0 rating alongside ESD control.290 MPa tensile
- CONDUse where fast, ground-referenced charge decay or EMI shielding-grade conductivity is required rather than dissipative control.270 MPa tensile
- AS-SURFPick when you still need bulk electrical insulation but must bleed off surface charge; coating wears and is lost on machined faces.8 properties
Working with G10-ESD Epoxy Matrix
Is G10-ESD easy to machine?
Machine dry with carbide or PCD tooling, high speed / moderate feed, sharp edges and rigid clamping; extract the abrasive glass dust and expect tool life well below that of plastics.
Can G10-ESD be welded?
Not weldable — thermoset laminate; join by bonding with epoxy/acrylic structural adhesive or by mechanical fasteners with washers to spread load.
Can G10-ESD be formed, bent or molded?
Supplied fully cured as flat sheet, rod or tube; no post-forming possible, so all geometry comes from machining, waterjetting or punching (thin sheet only, heated punch).
What surface finishes work on G10-ESD?
Edges should be deburred and sealed with epoxy to limit moisture wicking; no plating or anodizing — for coated antistatic grades avoid sanding or solvent wiping the functional surface.
G10-ESD chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| E-glass woven fabricstyle 7628/1080-class boro-silicate cloth, silane finish | 50 – 65 | 58 |
| conductive carbon black / graphitedissipative additive; higher loading or surface coating for other resistivity classes | 0.5 – 3 | 1.5 |
| epoxy resin (DGEBA + amine/anhydride curmatrix, includes cure agent and flow control | ≥ 33 (balance) | — |
G10-ESD Epoxy Matrix — frequently asked
What is G10-ESD Epoxy Matrix used for?
G10-ESD Epoxy Matrix is typically used for ESD assembly jigs, PCB test and probe fixtures, board-handling nests and locating plates, insulating standoffs in electronics test rigs, static-safe magazine rails and guides and machine tooling and mounting plates. In short: static-dissipative G10.
What is the tensile strength of G10-ESD Epoxy Matrix?
G10-ESD Epoxy Matrix has a typical tensile strength of 300 MPa (43.5 ksi) — stronger than 50% of composite grades. Strength varies by condition: see the 5 listed tempers.
Is G10-ESD Epoxy Matrix easy to machine?
Not especially — machinability is rated fair (38/100, better than 53% of composite grades). Machine dry with carbide or PCD tooling, high speed / moderate feed, sharp edges and rigid clamping; extract the abrasive glass dust and expect tool life well below that of plastics.
Can G10-ESD Epoxy Matrix be welded?
Not weldable — thermoset laminate; join by bonding with epoxy/acrylic structural adhesive or by mechanical fasteners with washers to spread load.
What surface finishes work on G10-ESD Epoxy Matrix?
Edges should be deburred and sealed with epoxy to limit moisture wicking; no plating or anodizing — for coated antistatic grades avoid sanding or solvent wiping the functional surface.
Can G10-ESD Epoxy Matrix be formed, bent or molded?
Supplied fully cured as flat sheet, rod or tube; no post-forming possible, so all geometry comes from machining, waterjetting or punching (thin sheet only, heated punch).
What is the maximum service temperature of G10-ESD Epoxy Matrix?
G10-ESD Epoxy Matrix is rated for continuous use to about 130°C (266 °F), and briefly to 155°C. Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
Can FabDigit make parts in G10-ESD Epoxy Matrix?
Yes — G10-ESD Epoxy Matrix is available for CNC machining and sheet metal with instant online pricing. Upload a STEP file to get a price and a DFM check.
Sources
- ASTM D709 — Standard Specification for Laminated Thermosetting Materials — ASTM (2017)
- NEMA LI 1 — Industrial Laminating Thermosetting Products — NEMA (1998)
- ANSI/ESD S541 / ESD ADV11.2 — Static control materials classification — ESD Association (2019)
- Engineered Materials Handbook, Vol.1: Composites — ASM International (1987)
- ESD/antistatic G10 and FR-4 laminate datasheets — Professional Plastics / Ensinger / Röchling (2023)
Property data is compiled from published supplier and standards handbooks and normalised for comparison. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.