# G10/FR4 Glass Epoxy

> The insulator that carries load: glass-epoxy laminate with metal-adjacent strength and full dielectric duty.

- Category: Composites → laminates
- HTML page: https://fabvector.com/materials/g10-fr4 (Portuguese: https://fabvector.com/pt/materials/g10-fr4)
- Price index: $$ (1–5, 6061-T6 = $)

## Mechanical properties (typical values, not certified minimums)

| Property | Value |
|---|---|
| Tensile strength | 310 MPa (lengthwise) |
| Yield strength | — (anisotropic) |
| Hardness | M110 (Rockwell) |
| Density | ~1.8 g/cm³ |
| Machinability | ★★☆☆☆ (2/5) |
| Corrosion resistance | ★★★★☆ (4/5) |

## When to choose it

You need an insulator that is also a structural part: G10/FR4 carries bolt loads and bending that would crush unfilled plastics, while staying dielectric, dimensionally stable and flame-rated (FR4).

## When to look elsewhere

Cost-per-feature matters: glass fibers chew carbide tooling and demand dust extraction, raising machining cost. For non-electrical fixtures, POM or aluminum machine far cheaper.

## Typical applications

- Electrical insulating plates and busbar supports
- PCB test fixtures and bed-of-nails plates
- Structural spacers in battery and energy systems
- Cryogenic and vacuum fixture components

## Compatible surface finishes

- [As-Machined](https://fabvector.com/md/finishes/as-machined)

Industries: energy, semiconductors, research · Instant quote: https://fabvector.com/quote