PTFE Glass Coated Fabric is using E-glass fiber (or Kevlar, Nomex) as basic fabric, and impregnated with high quality PTFE (Teflon)(Polytetrafluoroethylene).

PTFE prepreg fabric is used in CCL production, in order for meeting the high frequency request in 5G.

What is Copper Clad Laminate (CCL)?

Copper Clad Laminate(CCL) is a type of basic material of PCB, it is laminated with copper clad on both sides, and reinforced with resin soaked glass fiber fabric.

PTFE Glass Coated Fabric for CCL

Classification of CCL

Due to the different classification standard, CCL can be classified into many kinds of categories:

★ Mechanical rigidity

Rigid CCL or Flex CCL. It depends on the rigidity, while flex CCL is used to make Flexible Printed Circuit board/FPC.

★ Insulation material and structure

Organic resin CCL, Ceramic-base CCL, Metal-base CCL

★ Thickness

Standard thickness CCL and thin CCL. The standard one is at least 0.5mm thick.

Thickness of copper foil is included in the CCL thickness.

★ Reinforcing material

Glass fiber based CCL, paper based CCL, compound CCL

★ Applied insulation resin

Epoxy resin CCL and Phenolic CCL.

CCL for PCB

Prepreg(reinforcing material) for CCL

Prepreg is the reinforcing material for CCL, is made with fiberglass coated with resin.

The common glass fiber fabric for CCL is 106, 1080, 2112, 2116, 1500 and 7628.

And the applied resin is Phenolic resin, epoxy resin, Polyimide resin, Bismaleimide triazine or PTFE Glass Coated Fabric.

Due to the following property of glass fiber cloth, so it is widely used as prepreg material in CCL.

★ High intensity

★ Heat and fire resistance

★ Humidity resistance

★ Excellent insulation capability

The quality of prepreg will affect the quality of CCL directly.

Therefore, ESONE pay high attention to the testing and controlling of prepreg quality, which includes the resin content, gel time, volatile content and resin fluidity.

Why use PTFE Glass Coated Fabric for HFPCB production

With the development of 5G communication technology, high frequency printed circuit board is requested.

Because of the following superior property of PTFE Glass Coated Fabric, it is used as reinforcing material in CCL production, which can meet the high request of High frequency printed circuit board(HFPCB).

Teflon coated fiberglass

Unique request for PTFE coated fabric, PTFE film in CCL production

ESONE is developing custom PTFE Glass Coated Fabric for CCL production, like improving the welding property, promoting the dielectric strength and enhancing the tensile strength (dimensional stability).

And the workshop must be clean, temperature and humidity must be constant, otherwise the electricity property may be affected.

And in order to reduce the fragment during drilling holes, high quality PTFE film will be needed inside the sandwich of CCL.

PTFE Skived Tape

PTFE Glass Coated Fabric for Copper Clad Laminate(CCL)，首发于。

Teflon coated Fiberglass Tape is using PTFE coated fiberglass fabric as basic material, and coated with Silicone pressure sensitive adhesive (PSA) on the back. The PTFE(Teflon)(Polytetrafluoroethylene) coating surface provides excellent release property, and the adhesive side will make sure the stable adhesion in high temperature below 260 degrees.

Teflon coated Fiberglass Tape has a yellow PVC liner on the back, which can protect the adhesive surface and to ease distinction and use.

ESONE can also cut the adhesive tape into any width, making small adhesive tapes for PCB manufacturing(CVL Lamination), heat sealer machines, covering elements, impulse wires and L-Bar sealers.

Teflon coated Fiberglass Tape

Property of PTFE Coated Heat Resistant Tape

Silicone pressure adhesive tape contain non stick PTFE surface and heat resistant adhesive that allow for easy release, superior mechanical strength, long lifetime and dimensional stability.

The properties of PTFE coated tape with silicone PSA is as follows.

★  Excellent dimensional stability and durability in heat.

★  Superior easy mold release property, excellent Non stick

★  operating continuous from -73°C and +260°C

★  Flame resistant

★  High dielectric constant

★  Good mechanical strength

Why use Teflon coated Fiberglass Tape for FPCB manufacturing

FPCB is Flexible printed circuit boards, which is a modern flexible electronic equipment types, using in printer, phones, cameras and home devices. Flex circuit is more smaller, reliable and dynamic than rigid circuit boards

Teflon Adhesive Tape for FPCB manufacturing

ESONE PTFE coated fabrics with or without adhesive is the product of choice for CVL (coverlay) lamination, due to the excellent release property, high dielectric strength and mechanical strength.

Our very smooth, easy release and defect-free PTFE coated fabric, is designed to enable maximum output in highly automatic process and can be also used as releasing layer and in quick lamination.

Product choice of Teflon Adhesive Sheet

1)  PTFE coated fabric with adhesive, original brown

Brown PTFE fabric is the most common tape for Electrical industry, this fabric has high Teflon content for easy release property, with back side coated with Silicone pressure sensitive adhesive or Acrylic adhesive.

Tear Resistant Teflon coated Tape

2) Conductive (Anti-static) Teflon coated Fiberglass Tape 

Black PTFE adhesive tape is made into anti-static by adding carbon into PTFE coating, which is designed for insulating PCB from breakdown.

Anti static heat resistant adhesive tape

3) Custom color Adhesive Backed Teflon Sheet

Teflon Adhesive Sheet can be coated into blue/green/white/red and any other colors, aim to offer a fool-proofing design during the CVL lamination of PCB manufacturing.

In this case, PTFE coated fabric with adhesive will be easily distinguished during production.

Blue PTFE Tape

Specification of high temperature Teflon tape

Teflon coated Fiberglass Tape maintains durability at high speeds and high temperatures while maintaining a long service life. Frequently used in heat sealers, blister formation and form-fill-seal equipment as well as lining of guide rails, chutes and slides. Acrylic adhesive is also available, although silicone adhesive is our standard.

Related TDS of PTFE tape Premium series YS7008AJ-ESONE, YS7013AJ-ESONE, YS7015AJ-ESONE

Related TDS of PTFE tape Industrial series YS7011AJ-ESONE

Related TDS of PTFE tape Anti-static series YS7008BJ-ESONE, YS7011BJ-ESONE

Click here to access Self adhesive Teflon tape Premium Series

Teflon coated Fiberglass Tape For FPCB Manufacturing，首发于。