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  • High Thermal Delamination
  • Excellent heat resistance
  • Appropriate for lead-free assembly
  • Dicy –free and no filler

1. What is the difference between TG150 and TG170

TG means the glass transtition temperature of the material sheet under the high-temperature heating.

The high the TG value, the better the temperature resistance of the board can withstand, especially in the lead free soldering process, high TG material applications are more often used.

difference between TG150 and TG170

2. Are there quality certifications for TG130 material?

1) RoHS certification
2) REACH certification
3) UL certification
4) ISO certification
5) CE Certification
6) Flammability rating 94V0

3. What may effect TG150 raw material cost?

There are many factors that could effect TG150 raw material cost, for example, firstly is the copper thickness, the heavier copper, the expensive price will be.

Secondly is the material size, the larger panel, the more expensive price.

The third is the brand of raw material, different brand materials have different prices, normally the cost depends on the performance, the better performance the higher price will be.


Venture is designing tg150 for more than 10 years. We designed tg150 for the better performance of your PCB moisture resistance, heat resistance, chemical resistance, stability, and more characteristics.

You can get Venture tg150 at very economical rates.

Your Leading Tg150 Supplier in China

Venture Tg150 is a glass fabric-based epoxy resin copper-clad laminates. We have a wide range of tg150 material for your PCB in order to achieve a better performance of PCB moisture resistance, heat resistance, chemical resistance, stability.

Venture Tg150 has some advantageous features:

  • high thermal delamination
  • excellent heat resistance
  • appropriate for lead-free assembly
  • IPC-4101B/124specification is applicable
  • dicy –free and no filler

Venture is 10 years in providing Tg150 for different applications such as communication equipment instrumentation, computer, OA equipment, etc.

Venture is one of the biggest Tg150 manufacturers in China, offering international companies of all sizes with excellent quality TG150 PCB prototype to production services.

During the Tg150 manufacturing process, we are committed to adhering to the strictest standards to make professional and advanced TG150 products for your PCB.

In fact, our company is fully compliant with the ISO 9001 quality management system.

Venture Tg150 products were exported to Europe, North America, South America.

For more information about TG150, please rely on our friendly team right away!

Tg 150: The Ultimate FAQ Guide


This guide covers yet another important PCB Tg – Tg 150.

So, before you choose Tg 150 for your applications, you should read this guide.

It will help you decide whether TG 150 is suitable for your application of not.

Let’s dive right in.

What is Tg 150?

Tg 150 is the base PCB temperature where the PCB materials will begin to change from solid state to soft rubberlike state.

In other words, the base materials of your PCB will become unstable once you operate it beyond 150 degrees centigrade.

TG 150 PCB

TG 150 PCB

Which Group Does the Tg 150 Belong To?

Tg 150 belongs to the medium Tg group since it’s between the standard or low Tg and high Tg.

With the value of Tg in mind as 150, you will know your temperature operation limit.

As long as you stay below the 150 degrees centigrade mark, the stability of the PCB base will remain mechanically stable.

How Does Tg 150 Compare to Tg 170?

In reference to the classification of Tg, you will note that there is a difference between Tg 150 and Tg 170.

Tg 150 is classified under the medium glass transitional temperature while Tg 170 is under the high glass transition temperature.

As the general rule of Tg dictates, the higher the Tg the more stable the printed circuit board will be.

In this case, Tg 170 will provide a better stability in comparison to Tg 150.

You must, however, be careful not to go very high beyond Tg 170 as that will increase difficulty in mechanical processes.

Apart from that, you will also use more materials to manufacture PCBs with Tg 170 than that of Tg 150.

Implying that, Tg 170 is costly and will cost you a lot more than PCBs with Tg 150.

So, in case the working temperature you need is below 150 degrees centigrade, then Tg 150 is a great choice.

In case the working temperature is around 150 and above, then you should consider using high Tg of 170 degrees centigrade.

What Happens to the PCB when it Goes Beyond Tg 150?

When you use a printed circuit board with glass transition temperature above Tg 150, you risk causing fires.

First, as the material reaches Tg 150, the state will change from the solid firm state.

After that, it will become soft and have a rubber like thus giving up the hard and turgid solid state.

In case the temperature goes far beyond 150, you risk causing damages on the PCB base materials.

Apart from that, the PCB components may catch fire and start burning thus destroying the whole machine.

What is the Minimum Spacing and Hole Size that You Can Have on PCB Tg 150?

As important as Tg is to the PCB, you must also pay close attention to the spacing and hole sizes.

There are different spacing and hole sizes that will work best under specific Tg arrangements.

Spacing is important to provide enough room for the arrangement of components on the printed circuit board.

Apart from that, you will also depend on spacing to provide the best chance ad freedom testing of the board.

In addition to spacing, having the right hole size will also help in providing the best mounting foundation.

So, with that in mind, you should maintain the PCB spacing at a minimum of 2 mil.

On the other hand, you should make sure that the minimum hole size is 0.15 mm.

Do You Have Different Types of Surface Finishes for PCB Tg 150?

Yes, we have different types of surface finishes for PCB Tg 150.

The surface finishes on the printed circuit boards will improve the image of the printed circuit board.

Apart from the outward appeal, the surface finish will form a critical interface between the PCB and the components.

In addition to that, surface finishes will protect the exposed copper circuitry and provide solderable surfaces.

 Green Rigid Gold Multilayer TG150 PCB

Green Rigid Gold Multilayer TG150 PCB

Here are some of the printed circuit board surface finishes that you can have on PCBs with Tg of 150.

  • Hot Air Solder Level (HASL) Surface Finishes
  • Lead-Free Hot Air Solder Level (HASL) Surface Finishes
  • Organic Solderability Preservative (OSP) Surface Finish
  • Immersion Silver (Au) Surface Finish
  • Immersion Tin (Sn) Surface Finish
  • Electroless Nickel Immersion Gold (ENIG) Surface Finish
  • Electroless Nickel Electroless Palladium Immersion Gold (ENEPIG) Surface Finish
  • Electrolytic Wire Bondable Gold Surface Finish
  • Electrolytic Hard Gold Surface Finish

What is the Best Method for Testing PCB Tg 150?

You will test TG 150 using three main testing methods that will provide you with the right value range.

The three main testing techniques that you will use are:

  • Differential Scanning Calorimetry
  • Thermal Mechanical Analysis
  • Dynamic Mechanical Analysis

Despite the different techniques, the main guidelines for testing will fall under the ASTM E 1356 tests.

It is the standard method that you will use to successfully assign the right glass transitional temperature despite the technique.

How Does Tg 150 Compare to TM 150?

You can differentiate Tg 150 from TM 150 just from the definition of terms.

Tg 150 is the glass transition temperature with the 150 degrees centigrade value.

ying that, once the temperature reaches 150 degrees centigrade, the solid will change into soft rubberlike substance.

On the other hand, TM 150 is the melting temperature of PCB materials with the 150 degrees centigrade value.

In other words, the PCB materials will change from solid-state to liquid state when it reaches the 150-degree mark.

Conclusively, Tg 150 is the temperature where PCB changes from glassy state into a rubber-like state at 150 degrees centigrade.

On the other hand, TM 150 is the temperature where PCB changes from crystalline to amorphous state at 150 degrees Celsius.

How Does Differential Scanning Calorimetry Compare to Thermal Mechanical Analysis of Tg 150?

Among the methods of testing glass transition temperature, you can either choose to use Differential Scanning Calorimetry or Thermal Mechanical Analysis.

Differential scanning calorimetry is the most common and traditional technique that you can opt for.

You will employ the heat flow technique and then compare heat supply with the samples under test.

Apart from that, you will look at a similarly heated reference that will determine the transition points.

After that, you will employ the half-height technique within the transition region and then calculate the Tg.

On the other hand, you can opt for thermal-mechanical analysis technique which measure the polymer coefficient of thermal expansion (CTE).

Here, you will use the mechanical approach to help in determining the glass transition temperature of the polymers.

You will use a sensitive probe which will measure the expansion of polymers when you apply heat on them.

After that, you will refer to the expansion curve to calculate the right Tg by applying an onset technique.

What is the Difference Between Dynamic Mechanical Analysis and Thermal Mechanical Analysis of Tg 150?

Here, you will learn about the third method that you can use to test the glass transition temperature.

One of the major differences between the Dynamic Mechanical Analysis and Thermal Mechanical Analysis is the type of materials.

You can test the glass transitional temperature of amorphous polymers using the dynamic mechanical analysis method.

On the other hand, you cannot use the thermal-mechanical analysis method to test the glass transition temperature of amorphous polymers.

Apart from that, as you apply heat on TMA, you will apply mechanical stress when using the DMA technique.

Despite the application of stress on the materials, you will compare the response to frequency as well as temperature changes.

How Does Crystallinity Affect PCB Tg 150?

Well, the crystallinity of the PCB materials or amorphous polymers usually affects the mobility of the macromolecules.

At lower degrees of crystallinity, you will note that the glass transition temperature will increase.

As crystallinity of the amorphous polymers increases, you will note an increase in the glass transitional temperature.

In other words, an increase in the crystallinity of the material will definitely produce a subsequent increase in glass transition temperature.

What are the Other Methods that You Can Use to Test Tg 150?

Well, you may depend on the three main methods under ASTM E 3615 to test the glass transition temperature.

Apart from dynamic mechanical analysis, thermal-mechanical analysis, and differential scanning calorimetry, there are other techniques that you may use.

Here are the other techniques that you can employ in testing the glass transition temperature of PCBs.

  • Specific Heat Measurements Testing Technique
  • Thermo Mechanical Analysis Testing Technique
  • Thermal Expansion Measurement Testing Technique
  • Micro-heat-transfer Measurement Testing Technique
  • Isothermal Compressibility Testing Technique
  • Heat Capacity Testing Technique

What are the Main Factors that Affect Tg 150?

There are quite a number of factors that you can look at when talking about the glass transition temperatures.

Here are the main factors that will affect the glass transition temperature of materials at 150 degrees centigrade.

Chemical Structure of the Materials

Here, you will look at the chemical structures of the materials in terms of different factors such as:

i. Molecular weight where an increase in molecular weight leads to an increase in the glass transition temperature.

ii. Molecular structure will decrease overall mobility thus leading to an increase in glass transition temperature.

iii. Chemical cross-linking where an increase in cross-linking leads to a decrease in free volume and mobility thus increasing Tg.

iv. Polar groups where an increase in the presence of polar groups leads to an increase in the overall glass transition temperature.

Addition of Plasticizers

An addition of plasticizers on the materials lead to an increase in the free volume of polymer structure thus increasing movement.

This will provide the polymer chains the chance of moving even under very low temperatures thus decreasing the glass transitional temperature.

Moisture or Water Content

In case you increase the moisture content of polymers, you will increase hydrogen bond formation thus increasing polymeric chain distance.

With this in action, the free volume of the polymers will increase, thus resulting into a decrease in glass transition temperature.

Enthalpy and Entropy Effects

In this case, an increase in entropy and enthalpy will definitely translate to an increase in glass transition temperature.

Free Volume and Pressure

In case you increase the pressure of the surrounding, you will decrease the free volume and hence increase glass transition temperature.

What are the Advantages of Using PCB Tg 150?

The higher the glass transitional temperature of polymers, the greater the mechanical stability.

Implying that, as you increase the glass transition temperature, you are bound to experience more benefits.

Here are some of the benefits that you will enjoy by using the glass transition temperature of 150 degrees centigrade.

 TG150 Copper PCB

TG150 Copper PCB

Resistance to High Temperature

Tg 150 of the PCB polymer materials often increase the resistance of the materials to very high temperatures.

In other words, an increase in glass transition temperature leads to an increase in the resistance to higher temperatures.

Longer Delamination Durability

You will also worry less about the PCBs delaminating and separating from the normal bonds.

This freedom provides you with a longer period of using the PCBs with minimal chances of delamination.

Lower Thermal Expansion

At Tg 150, the thermal expansion of PCB polymer materials will be very low which explains its behavior at high temperatures.

In other words, despite the increase in the operation temperatures, you will experience very low rates of thermal expansion.

How Does PCB Tg 140 Compare to PCB Tg 150?

In terms of classification, you will classify Tg 140 under standard Tg and then classify Tg 150 under medium Tg.

Apart from that, you will realize that the higher the TG value of the polymers, the greater the materials.

Implying that, the materials with Tg 150 have better performance characteristics than those with lower Tg of 140 degrees centigrade.

In other words, TG 150 is better than Tg 140 in the following ways.

  • Better Performance
  • Better Resistance to Higher Temperatures
  • Longer periods of delamination durability
  • Lower rates of thermal expansion
  • Better chemical and mechanical resistance to effects of moisture and heat.

What are the Main Applications of PCB Tg 150?

In many cases, you will use Tg 150 in applications that have printed circuit boards with more than 10 layers.

In other words, it us suitable for multiple layer printed circuit boards that you can use in different applications.

Here are some of the industries where the multiple layer PCBs with Tg of 150 come in handy.

  • Automobile Industry
  • Material Packaging Industry
  • Embedded substrate Industry
  • Precision Instruments Industry

What are the Laminate Requirements of PCB Tg 150?

Here you will look at the properties of the laminates which will denote the glass transition temperature at 150 degrees centigrade.

The main laminate requirements for printed circuit boards with glass transition temperature of 150 are:

  • Peel Strength
  • Volume Resistivity
  • Surface Resistivity
  • Rate of Moisture Absorption
  • Dielectric Breakdown
  • Permittivity
  • Loss Tangent
  • Flexural Strength
  • Arc Resistance
  • Thermal Stress
  • Flammability
  • Electrical Strength

Even though the glass transition temperature is a thermal property, you must also explore the electrical and mechanical properties.

What are the main Features that Define PCB Tg 150?

 Double layer TG150 PCB

Double layer TG150 PCB

The most appropriate way of identifying a PCB with Tg 150 is by looking at the features of the materials.

Here are the main features that will define the PCB with glass transition temperature of 150 degrees centigrade.

  • Glass transition temperature of 150 degrees centigrade
  • Great thermal delamination durability
  • Excellent resistance to heat that is appropriate for led free and halogen free assemblies.
  • Applicability of the IPC-4101B/124 standard specifications
  • ANTI-CAF properties
  • DICY Free with no fillers

With the information in this guide, certainly, you can choose whether Tg 150 is suitable for your applications or not.

However, in case you have any question, Venture Electronics team is here to help – contact us now.

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