G10 PCB: Everything You Need To Know in 2022


In the circuit board industry, if you are planning to select a material that can reduce noise and has electrical stability, we suggest going for the G10 PCB material.

One of the physical characteristics of this material is its complex and rigid body, making it highly reliable in heavy applications. Further, it has customized fabrication and not an injection mold.

During the construction of these materials, it requires specific technologies to produce them perfectly to attain their desired strengths; however, through an experienced manufacturer, such as PCBTok, this wouldn’t be a problem at all. After meticulous fabrication, it guarantees excellent output.

Consequently, we’d like to discuss its definition, functionality, benefits, applications, properties, and technical parameters. Stay until the end to fully comprehend G10 PCB!

Introduction to G10 PCB

Introduction to G10 PCB

What is a G10 PCB?

Simply put, G10 is a PCB material primarily made from glass fiber and resin lamination. Basically, the letter G means glass fiber, while the ten stands for 10% of it.

There are countless features a G10 PCB could offer, including corrosion and wear resistance and exceptional insulation. One of the distinctions of G10 among traditional and epoxy glass fiber is its excellent tensile strength, modulus elasticity, chemical stability, and outstanding resistance to impact, fatigue, and temperature.

In terms of application, they are widely popular among the following industries; chemical, aerospace, construction, aviation, agriculture, and other purposes that require the capabilities of G10 material. Apart from that, they are frequently utilized as an insulation solution for electrical and electronic devices and even for mechanical applications.

As an expert in this industry, we can say that producing a G10 PCB can be pretty complicated, especially if the manufacturer is inexperienced since it is difficult to cut and machine. However, choosing a producer with extensive industry experience wouldn’t be a concern.

Different Applications of G10 PCB

One of the capabilities of a G10 PCB material is its low moisture absorption which can be ideal for applications that are surrounded by water or prone to water harm; hence, they are utilized in Marine, Aerospace, and Aviation industries quite often. Furthermore, the epoxy of G10 can quickly bond with other epoxies; thus, making it highly versatile. Additionally, a G10 PCB material features a corrosion-resistant element; hence, it can be helpful for back plating in heavy applications due to its robustness and exceptional reliability. Apart from that, it has excellent electrical insulation properties, making it highly suitable for extreme environmental conditions.

Apart from the mentioned applications, G10 PCB material can be used as a mounting board since it has exceptional strength that can tolerate bending and breaking even if subjected to extreme vibrations and shocks. In addition, it offers slight heat expansion; thus, it can be helpful in the cutting phase. As a result, they can be popular among industrial, automotive, and even military application industries.

In terms of the G10 Epoxy Plate Application, they are widely deployed as insulation for electrical facilities and motors, including circuit breakers, AC to DC, transformers, and others.

Overall, G10 PCB material can be incorporated into almost every application aspect; however, it will still depend on the desired purpose of the application.

Different Applications of G10 PCB

Different Applications of G10 PCB

Performance Characteristics of G10 PCB

As an experienced manufacturer in the industry, we’ve comprehensively summarized the performance characteristics that a G10 PCB material could offer in various applications. Some of the mentioned characteristics are already mentioned in the previous phases of this article; however, we’ll combine them in this section for better understanding.

  • It is a flame-retardant material.
  • It offers exceptional stiffness and strength to the device.
  • In terms of reliability, it is electrically and dimensionally stable.
  • It offers outstanding mechanical, physical, and electrical properties.
  • Ultimately, it is creep-resistant.

Properties of G10 PCB

We have compiled the typical properties of a G10 PCB in the table below.


Units ASTM Test

G10 (Glass Epoxy)

Specific Gravity



Tensile Strength (CW)

psi D638


Flexural Strength (CW)

psi D790


Flexural Modulus

psi D790


Comprehensive Strength

psi D695



Rockwell M D785


Izod impact (notched, CW)

ft-lbs/in of notch D256


Maximum Continuous Service Temperature in Air



Water Absorption (immersion 24 hours)

% D229


Benefits of G10 PCB

We’ve compiled all of the advantages of G10 PCB Epoxy Substrates. Some of them are as follows:

Diversified Forms

As its name indicates, a G10 PCB Epoxy Substrate is highly versatile; it can meet all the shape specifications for a particular application, even from a low viscosity up to positively melting solids.

Easy to Solidify

One of the pros of a G10 PCB is its swift curing time; it can heal itself at the temperature range of 0°C to 180°C through several materials for curing. However, in terms of extreme temperature condition settings, we suggest going for materials that are High TG supported.

Strong Adhesive Force

Due to G10 PCBs elements, including the polar hydroxyl and ether bond from its epoxy resin, it can withstand lasting adhesion.

Low Contractibility Rate

Compared to polyester and unsaturated phenolic resins, the curing contraction of a G10 PCB material is below 2% in percentage.

Benefits of G10 PCB

Benefits of G10 PCB

Detailed Analysis between G10 PCB and FR4

After meticulous research conducted by our team experts, we’ve concluded the distinctions and similarities between the G10 PCB material and the FR4.

  • FR4 and G10 are significant industrial sheets using glass fabric saturated with epoxy resin.
  • Its resin is what distinguishes FR4 from G10.
  • The two compounds epichlorohydrin and “bis” phenol A combine to form the adhesives.
  • We have the Tetrabromo “bis” phenol A has been substituted for “bis” phenol A in FR4.
  • The FR4 designation denotes that the replacement’s goal is to increase the laminate’s heat resistance.
  • Property variations are negligibly minor. Although the glass transition temperature (TG) of bromine, which has a little more complicated pattern, remains unchanged, it is more secure when heated.

Technical Parameter of a G10 PCB

Since we want our consumers to fully grasp and understand the capabilities of the G10 PCB material, we’ve compiled all the parameters that can be located on them. Keep on reading until we reach the end to solidify your knowledge about G10 PCB further.

  • It has a rate of HB for Flame Retardant.
  • It has a value greater than or equal to 340 MPa as its perpendicular layer bending strength; it is considered an average amount.
  • It has a value greater than or equal to 340 MPa as its perpendicular layer bending strength at a specification of 150 ± 2°C.
  • It has a value of 66.7 KJ/m2 and 45.3 KJ/m2 for its parallel layer impact strength.
  • It has a value of ≥ 5.0×10²Ω of insulation resistance after its submersion in water at a particular specification of D-24/23.
  • It has a value of ≥ 10.7MV/m for its vertical layer-wise electrical strength.
  • Its parallel layer breakdown voltage has a value of ≥ 40 kV.
  • It has a value of ≤ 5.5 for its relative dielectric constant at 1 MHz.
  • It has a value of 3.3 x 10-2 for its dielectric loss angle.
  • It has a value of 6.5 mg as its water absorption at a plate thickness of 1.6 mm and specification of D-24/23.

Technical Parameter of a G10 PCB

Technical Parameter of a G10 PCB


To wrap everything up, G10 PCB material can be helpful in various applications; however, we still recommend determining the purpose of the application first before applying it to the desired applications to ensure that it will perform up to its anticipated performance.

We at PCBTok are hoping to help in helping our readers understand all about G10 PCB. If you’re still confused about certain aspects of the G10 PCB, we’re accessible 24/7; we’ll be delighted to attend to our consumers’ concerns with happiness on our faces. Inquire today!

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