Differences Between Garolite Sheet and G-10 Sheet

Garolite is a brand name (owned by companies like Norplex-Micarta) representing a series of glass fiber-reinforced la...

Garolite is a brand name (owned by companies like Norplex-Micarta) representing a series of glass fiber-reinforced laminated sheets, while G-10 is a specific type within the Garolite series (also a generic name under the NEMA standard). In short: Garolite G-10 = G-10 sheet. However, the Garolite series includes other grades (e.g., G-7, G-9), so a direct comparison depends on the specific grade.

If Comparing “Garolite G-10” vs. “G-10”

Identical Materials: They are the same material, differing only in naming conventions:

G-10: Generic name under the NEMA (National Electrical Manufacturers Association) standard.

Garolite G-10: Commercial name for G-10 sheets produced by Norplex-Micarta.

Composition: Both use epoxy resin + woven glass fiber, with identical properties.

If Comparing “Garolite Series Sheets” vs. “G-10 Sheets”

The Garolite series includes multiple grades (e.g., G-7, G-10, G-11), while G-10 is one specific type. The distinction here lies in differences between other Garolite grades and G-10:

Property	Garolite G-10 (G-10 Sheet)	Other Garolite Grades (e.g., G-7, G-9)
Resin Matrix	Epoxy resin	Phenolic resin (G-7/G-9), modified epoxy (G-11)
Temp Resistance	130–150°C	Higher for phenolic grades (e.g., G-7: >180°C)
Mechanical Props	High flexural strength, ideal for structural parts	Phenolic grades are more wear-resistant but lower in flexural strength (G-7/G-9)
Electrical Props	High insulation (FR4 grade)	Phenolic grades have lower insulation but better arc resistance (G-7)
Typical Uses	Circuit boards, insulating brackets, knife handles	High-temp bearings, wear pads, food machinery (phenolic grades are non-toxic)

Key Takeaways

Garolite G-10 = G-10 Sheet: The same material—epoxy resin-based, high insulation, and mechanical strength.

Other Garolite Grades (e.g., G-7) ≠ G-10: Different compositions (phenolic resin), temperature resistance, and wear properties lead to distinct applications.

How to Quickly Differentiate?

Check the Grade:

If labeled G-10 or FR4, it uses epoxy resin (same as Garolite G-10).

If labeled G-7, G-9, it uses phenolic resin, offering higher heat resistance but lower insulation.

Application Focus:

Electronics/Insulation: Choose G-10 (or Garolite G-10).

High-Temperature/Wear Resistance: Choose Garolite G-7/G-9.

FAQs

Why is Garolite G-10 more expensive?
Epoxy resin costs more than phenolic resin, and G-10 requires stricter insulation and strength standards.

G-10 vs. FR4?

FR4 is a flame-retardant version of G-10 (with added fire retardants), used in circuit boards; other properties are identical.

Always clarify the grade and performance requirements to avoid confusion!