High Precision E-Glass Electronic Fiberglass Fabric for PCB & CCL Laminate Reinforcement

        Our E-Glass Electronic Fiberglass Fabric is a high-precision woven reinforcement material designed primarily for Copper Clad Laminates (CCL),Printed Circuit Boards (PCB),electrical insulation laminates,and other electronic composite applications. Manufactured from fine electronic-grade glass fiber yarns using a uniform plain weave structure,this electronic fiberglass cloth provides excellent dimensional stability,consistent thickness,reliable electrical insulation,and uniform resin impregnation.Available in standard styles including 7628,7630,7638,2116,and 1080,the product range covers weights from 48.8–254.8 g/m² and thicknesses from 0.053–0.200 mm. Different fabric styles allow laminate manufacturers to select the appropriate balance of thickness,weight,yarn density,and resin content for electronic laminates.Customized width,weight,and thickness specifications are also available for PCB laminate,CCL,electrical insulation,and precision composite manufacturing requirements.

Electronic Fiberglass Fabric Specifications

Key Advantages of Electronic Fiberglass Cloth

1. Designed for PCB & CCL Manufacturing

Electronic fiberglass cloth is specifically designed as reinforcement for copper clad laminate systems.

The fiberglass fabric is impregnated with compatible resin and laminated with copper foil to form CCL,which is then processed into printed circuit boards.

Its uniform fabric structure helps provide consistent reinforcement throughout the electronic laminate.

2. Excellent Dimensional Stability

Dimensional stability is especially important during PCB manufacturing because the laminate must maintain accurate geometry through resin impregnation,pressing,thermal processing,drilling,and circuit fabrication.

The fine woven E-glass structure helps reduce dimensional variation and supports precise alignment within electronic laminate systems.

3. Uniform Plain Weave Structure

All current standard grades use a plain weave structure.

The warp and fill yarns are evenly interlaced to create a stable and predictable fabric construction.

Uniform weaving helps support:

• Consistent thickness

• Controlled resin impregnation

• Stable yarn distribution

• Predictable laminate thickness

• Reliable processing performance

4. Stable Electrical Insulation Performance

E-glass fiber provides good dielectric and electrical insulation characteristics.

When combined with an appropriate resin system,electronic fiberglass fabric forms an important reinforcing component of electrical insulation laminates used in PCB,CCL,and other electronic applications.

Final dielectric performance depends on the complete laminate system rather than the fiberglass fabric alone.

5. Uniform Resin Impregnation

Electronic fiberglass cloth is designed to allow consistent resin penetration throughout the woven structure.

Uniform resin impregnation helps reduce dry areas and supports more consistent laminate quality.

This is particularly important for prepreg and CCL production where controlled resin distribution directly affects processing and finished laminate performance.

6. Wide Range of Fabric Styles

Different electronic cloth styles provide different combinations of:

• Fabric weight

• Thickness

• Yarn size

• Warp density

• Fill density

• Resin carrying capacity

• Final laminate thickness

This allows laminate manufacturers to select suitable fiberglass cloth according to the required PCB or CCL structure.

7. Fine & Lightweight Fabric Options

The product range includes lightweight and thin electronic cloth styles such as 1080 and 2116.

These materials are suitable for thinner laminate constructions and multilayer electronic structures where precise thickness control is important.

8. Heavier Structural Electronic Cloth Options

Styles such as 7628,7630,and 7638 provide higher grammage and thickness.

These fabrics can be selected for laminate structures requiring greater fiberglass content or increased reinforcement thickness.

9. Heat & Chemical Stability

Electronic fiberglass fabric maintains structural stability under typical CCL lamination and PCB processing conditions.

The fiberglass reinforcement also provides resistance to many common processing chemicals used within electronic laminate manufacturing.

Actual thermal and chemical performance depends on the resin system and complete laminate construction.

10. Customizable Specifications

Width,weight,and thickness can be customized according to different CCL,PCB,and electronic insulation laminate requirements.

Customized roll length and packaging labeling are also available for production line integration.

Electronic Fiberglass Fabric Applications

1. Copper Clad Laminates (CCL)

CCL is the primary application for electronic fiberglass cloth.

The fabric is impregnated with resin to form prepreg or laminate reinforcement and combined with copper foil under controlled heat and pressure.

The finished copper clad laminate becomes the base material used for printed circuit board manufacturing.

2. Printed Circuit Boards (PCB)

Electronic fiberglass fabric provides mechanical reinforcement,dimensional stability,and electrical insulation within PCB laminate systems.

It is widely used in single-sided,double-sided,and multilayer circuit board structures depending on laminate design.

3. Multilayer PCB Laminates

Thin electronic cloth styles can be used in multilayer PCB constructions where controlled dielectric thickness and dimensional precision are important.

Different fiberglass fabric styles may be combined within the same multilayer structure according to electrical and mechanical requirements.

4. Electrical Insulation Laminates

E-grade fiberglass cloth can be used in resin-based electrical insulation boards and laminate materials.

Typical applications include electrical equipment,insulation plates,and structural dielectric components.

5. Electronic Fire Protection Boards

The fabric can be used as reinforcement in selected fire-resistant and electrical protection laminate systems.

The final fire performance depends primarily on the complete resin formulation,laminate construction,and applicable test standard.

6. High-Reliability Electronic Components

Electronic fiberglass cloth can be incorporated into high-reliability electronic laminate systems where dimensional stability and electrical insulation are critical.

Applications may include industrial electronics,power electronics,communication equipment,and specialized electronic assemblies.

7. Aerospace Electronics

Selected electronic fiberglass fabrics can be used in aerospace electronic laminate applications.

For aerospace programs,material traceability,laminate performance,flammability,thermal cycling,and qualification requirements should be confirmed according to the specific project.

8. Specialized Composite Laminates

Electronic-grade fiberglass fabric can also be used in precision composite laminates requiring fine fabric construction,controlled thickness,and reliable electrical insulation.

Technical Specifications by Style

7628 Electronic Fiberglass Fabric

7628 is one of the most widely recognized electronic fiberglass cloth styles used in PCB and CCL manufacturing.

Its current specification includes:

• Weight: 208 g/m²

• Thickness: 0.173 mm

• Width: 105–127 cm

• Density: 17.3 × 13 ends/cm

• Weave: Plain

7628 fiberglass fabric is commonly selected for general-purpose CCL and PCB laminate structures requiring a balance of mechanical reinforcement,thickness,and resin impregnation.

7630 Electronic Fiberglass Fabric

7630 provides slightly higher weight and thickness than 7628.

Current specifications include:

• Weight: 218.3 g/m²

• Thickness: 0.190 mm

• Width: 127 cm

• Density: 17.3 × 14.6 ends/cm

• Weave: Plain

This style can be selected where slightly greater reinforcement thickness is required within an electronic laminate.

7638 Electronic Fiberglass Fabric

7638 is the heaviest standard grade in the current product range.

Current specifications include:

• Weight: 254.8 g/m²

• Thickness: 0.200 mm

• Width: 127 cm

• Density: 17.3 × 10 ends/cm

• Weave: Plain

It can be considered for thicker electronic laminate constructions requiring increased fiberglass reinforcement.

2116 Electronic Fiberglass Fabric

2116 is a lightweight electronic fiberglass cloth commonly used for thinner PCB laminate layers.

Current specifications include:

• Weight: 103.8 g/m²

• Thickness: 0.094 mm

• Width: 105–127 cm

• Density: 23.6 × 22.8 ends/cm

• Weave: Plain

Its thinner construction makes it suitable for multilayer electronic laminates requiring precise thickness control.

1080 Electronic Fiberglass Fabric

1080 is the lightest and thinnest current grade.

Current specifications include:

• Weight: 48.8 g/m²

• Thickness: 0.053 mm

• Width: 127 cm

• Density: 23.6 × 18.6 ends/cm

• Weave: Plain

1080 electronic fiberglass cloth is particularly suitable for thin dielectric layers and multilayer PCB structures requiring fine reinforcement.

How to Choose the Right Electronic Fiberglass Cloth Style

The appropriate electronic cloth style should be selected according to target laminate thickness,resin content,copper foil specification,electrical requirements,and PCB stack-up design.

Electronic Fiberglass Cloth for Copper Clad Laminates

Copper clad laminate manufacturing typically involves impregnating electronic fiberglass cloth with a thermosetting resin system to form prepreg.

The prepreg layers are then combined with copper foil and laminated under controlled temperature and pressure.

Electronic fiberglass cloth contributes to:

• Mechanical reinforcement

• Dimensional stability

• Thickness control

• Electrical insulation

• Resin distribution

• Laminate consistency

The specific fiberglass style should be matched with resin content,prepreg specification,and finished laminate requirements.

Electronic Fiberglass Cloth for Multilayer PCB

Multilayer PCB manufacturing often requires several laminate and prepreg layers with tightly controlled dielectric thickness.

Thin fabrics such as 1080 and 2116 can be used where reduced layer thickness is required.

Heavier styles such as 7628 may be used where increased mechanical support or laminate thickness is needed.

Actual layer selection depends on impedance control,dielectric requirements,PCB thickness,copper weight,and circuit design.

Dimensional Stability for PCB Manufacturing

Dimensional stability is particularly important for advanced PCB production.

During lamination and thermal processing,the laminate must maintain accurate dimensions so that drilled holes,copper traces,and multilayer circuits remain properly aligned.

Uniform yarn density,consistent weaving,and controlled fabric thickness help support predictable dimensional behavior throughout electronic laminate processing.

Resin Impregnation & Prepreg Manufacturing

Electronic fiberglass cloth must allow resin to penetrate consistently through the fabric structure.

During prepreg production,the fiberglass cloth is coated or impregnated with resin and partially cured under controlled conditions.

Important processing factors include:

• Resin viscosity

• Resin content

• Fabric thickness

• Fabric weight

• Yarn density

• Treatment chemistry

• Impregnation speed

• Drying and curing conditions

The correct combination of electronic fiberglass cloth and resin system helps achieve consistent prepreg quality.

How to Choose Electronic Fiberglass Fabric

Custom Electronic Fiberglass Fabric

Customized specifications can be supplied according to different electronic laminate manufacturing requirements.

Customers can provide existing fabric style,CCL specification,target thickness,width,weight,or laminate requirements for product selection.

Quality Control

Electronic fiberglass fabric requires tighter dimensional and visual control than many general industrial fiberglass fabrics because small variations can affect downstream laminate processing.

Key quality characteristics include:

• Fabric weight

• Thickness

• Width

• Warp yarn density

• Fill yarn density

• Weave uniformity

• Yarn alignment

• Surface cleanliness

• Dimensional stability

• Resin impregnation uniformity

• Fabric defects

• Roll alignment

• Moisture protection

• Packaging integrity

Packaging & Shipping

Electronic-grade fiberglass cloth requires careful moisture and contamination protection during storage and international transportation.

Electronic fiberglass fabric should remain sealed until production to minimize moisture absorption,dust,and handling contamination.

Storage Guidelines

1. Recommended Temperature

Store electronic fiberglass fabric at approximately 10–35°C.

2. Recommended Humidity

Maintain relative humidity between approximately 35–65%.

3. Keep the Packaging Sealed

Do not open the moisture-proof packaging until the material is ready for production.

Moisture absorption may affect resin impregnation and electronic laminate processing.

4. Protect from Water & Rain

Store the material indoors and keep it away from rain,condensation,and wet warehouse conditions.

5. Avoid Direct Sunlight

Protect the rolls from prolonged direct sunlight and heat exposure.

6. Prevent Physical Damage

Keep sharp objects away from the fiberglass fabric and packaging.

Damage to fine electronic cloth can affect downstream laminate quality.

7. Pallet Stacking

Do not stack pallets more than approximately two layers high.

8. Cold Storage Conditioning

If the material has been stored in a low-temperature environment,allow it to condition in the processing workshop for approximately 24 hours before opening or use.

This helps reduce the risk of condensation.

9. FIFO Inventory Management

Use a First In,First Out inventory system to maintain consistent product turnover and processing quality.

Frequently Asked Questions About Electronic Fiberglass Fabric

1. What is electronic fiberglass fabric?

Electronic fiberglass fabric is a precision woven cloth manufactured from fine electronic-grade glass fiber yarns.

It is mainly used as reinforcement in copper clad laminates,printed circuit boards,and electrical insulation laminates.

2. What is electronic fiberglass cloth used for?

Its primary applications include:

• Copper Clad Laminates

• Printed Circuit Boards

• Multilayer PCB Laminates

• Electrical Insulation Boards

• Precision Electronic Composite Laminates

3. Why is fiberglass fabric used in PCB laminates?

Fiberglass cloth provides mechanical reinforcement,dimensional stability,and electrical insulation within the resin-based laminate.

This helps create a stable substrate for copper circuits and multilayer PCB manufacturing.

4. What is 7628 fiberglass fabric?

7628 is a common electronic fiberglass cloth style.

The current specification lists:

• 208 g/m²

• 0.173 mm thickness

• 105–127 cm width

• Plain weave

It is widely used as reinforcement in PCB and copper clad laminate systems.

5. What is the difference between 7628 and 2116 fiberglass cloth?

7628 is heavier and thicker.

7628:

• 208 g/m²

• 0.173 mm

2116:

• 103.8 g/m²

• 0.094 mm

2116 is generally more suitable for thinner laminate structures.

6. What is 1080 fiberglass cloth?

1080 is a lightweight and thin electronic fiberglass fabric.

The current specification is approximately 48.8 g/m² with a thickness of 0.053 mm.

It can be used in thin dielectric layers and multilayer PCB structures.

7. What is the thickest standard electronic cloth listed?

7638 is currently the thickest standard style in this product range at approximately 0.200 mm and 254.8 g/m².

8. Are all these electronic fiberglass fabrics plain weave?

Yes.

The current 7628,7630,7638,2116,and 1080 styles are all listed as plain weave.

9. What widths are available?

Standard widths are approximately 105–127 cm depending on fabric style.

Customized width specifications are also available.

10. Can the weight and thickness be customized?

Yes.

Customized width,weight,and thickness specifications can be supplied according to CCL,PCB,and electronic laminate requirements.

11. Is electronic fiberglass cloth electrically conductive?

Glass fiber itself is an electrical insulating material rather than a metallic conductor.

However,the electrical properties of the finished PCB laminate depend on the entire resin-fiberglass-copper construction.

12. How should electronic fiberglass cloth be stored?

Store the material in a clean,dry,and well-ventilated warehouse at approximately 10–35°C and 35–65% relative humidity.

Keep the original moisture-proof packaging sealed until use.

13. Why is moisture control important for electronic fiberglass fabric?

Moisture contamination can affect resin impregnation,prepreg processing,and laminate consistency.

For this reason,electronic-grade fiberglass cloth should remain protected from humidity,condensation,and water before processing.

14. What information should I provide when requesting a quotation?

For an accurate quotation,please provide:

• Required fabric style

• Required width

• Required weight

• Required thickness

• PCB or CCL application

• Required quantity

• Roll length if specified

• Destination country or port

• Packaging and labeling requirements

If you already use a standard style such as 7628,2116,or 1080,please include the style number in your inquiry.

Why Choose WGSC Composite?

WGSC Composite supplies electronic-grade fiberglass fabrics and specialized glass fiber reinforcement materials for PCB,CCL,electrical insulation,and precision composite manufacturing.

Our electronic fiberglass cloth range includes common industry styles such as 7628,7630,7638,2116,and 1080,covering both thin lightweight fabrics and heavier electronic laminate reinforcement.

Customized width,weight,thickness,roll length,and packaging can be evaluated according to different laminate production requirements.

Whether you are sourcing 7628 fiberglass fabric for PCB laminates,1080 electronic fiberglass cloth for multilayer PCBs,2116 fiberglass cloth for CCL,or customized electronic-grade E-glass fabric,we can provide product selection and specification support according to your manufacturing requirements.

Request a Quote

Looking for a reliable electronic fiberglass fabric supplier?

Please send us your:

Fabric Style · Width · Weight · Thickness · PCB/CCL Application · Quantity · Roll Length · Destination

Contact WGSC Composite for electronic fiberglass cloth specifications,custom production requirements,and quotation support.