7 Different Types of ESD Film and Their Uses

ESD film is a thin plastic sheet that can be applied to the surface of electronic components i.e. printed circuit boards (PCBs) or used as a secondary packaging material. The film provides electrical protection and plays an important role in preventing electrical shock. ESD stands for electrostatic discharge, which refers to the phenomenon of electricity building up on human bodies or insulative surfaces and causing disruptive discharges. This phenomenon can damage circuitry, especially that of electronic products, such as PCs and mobile devices. One way manufacturers guard against this danger is through the use of ESD film.

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In this article we will explore the different types of ESD films, what they are used for, their key benefits and why businesses use them.

Types of ESD Film

Preserving electronics and protecting them against static damage is paramount in effective ESD control. This is where ESD packaging film can help! The correct type of ESD film will ensure longevity and maintain the efficiency of electronic devices. There are various types of ESD film such as pink anti static film and static shielding film. Some films will protect electronics against dust and moisture accumulation and others will protect against physical damage and static discharge (ESD). As most electronics are vulnerable to static electricity, it is crucial that ESD film is used to protect these when handling, storing or transporting static sensitive devices (SSDs).

The 7 most common types of ESD films, which we will be talking about in this article, are the following:

• Pink film
• Black conductive film
• Static shielding film
• Moisture barrier film
• Pink bubble film
• Polyimide film
• Laminating film

4 Benefits of ESD Film

There are various advantages of using ESD film, here are several:

1) ESD films can be customised to any size, thickness, printing solution or colour you require.
2) ESD films protects products against dust accumulation
3) ESD films safeguard the product against scratches to a good extent during transit
4) ESD films are the ideal packaging solution for long journey transportation

Keep reading below to learn more about each of these ESD films.

What Is Pink Film?

Pink film, also commonly known as antistatic lay flat tubing, is a type of ESD packaging material that is used to safely wrap non-electrostatic-sensitive products used in the electronics industry i.e. instruction manuals, nuts and bolts. The film is typically manufactured from a durable polythene and coated with an anti static coating. Its anti static coating allows the film to safely come into close proximity to static-sensitive electronics. One characteristic that distinguishes pink film to other types of film packaging is its red-tinted polythene colour – often described as pink. This colour helps to inform those working in an Electrostatic Protected Area (EPA) that the material can safely be used. It is important to note that pink anti static film does not protect static-sensitive components against electrostatic charge (ESD).

Antistatic film is specially developed to help eliminate static charge build-up, mitigating the risk of ESD damage and creating a static-free work area. Static charge build-up typically occurs when two surfaces make contact with one another and cause friction; this is known as tribocharging. In addition, reducing the risk of static damage to valuable electronic components can help to retain their performance and life-span, saving businesses money annually. Most pink layflat tubing is 75 microns thick which provides good scratch protection for the contents inside. Film pink packaging has a typical surface resistance of less than 10^(10) Ohms per metre.

Products can be placed in the tubing and cut to size. Once the tubing is cut to the required length, it can be sealed. This process enables the best fit whilst helping to reduce wastage.

If you are looking for a cost effective way to package your non-static-sensitive items then pink antistatic layflat is a good choice. See Bondline’s pink anti-static film material.

What Is Conductive Film?

Conductive black film has been developed to effectively dissipate static charges while preventing electrical tribocharge. Its tough, puncture-resistant material makes it a suitable choice for the handling, shipping and storage of static sensitive electronics and other items. An easy way to distinguish conductive film from other types of packaging film is its notable appearance; opaque and black in colour.

Conductive black film is a cost-effective packaging solution that is commonly used in the electronics and chemical industries. Many businesses opt for this type of packaging material due to its abundance of benefits. Here are several advantages of conductive film:

• Heat-sealable

• Flexible

• Offers exceptional chemical and abrasion resistance

• Provides both physical and static protection
• Conductive properties are unaffected by humidity and age
• Volume-conductive

• Groundable

You will find that most black, carbon-impregnated polyethylene film is free of silicones, amines and heavy metals and compliant to RoHS regulations. They are often chosen over static shielding film due to their lower cost.

Conductive films are particularly used for medical trays and packaging. This is to help avoid static shock in operating rooms.

What Is Static Shielding Film?

Static shielding film, also known as ESD protection film, provides the uppermost protection to valuable electronics. This type of film is an effective packaging solution for the handling, storage and transportation of ESD sensitive electronic devices. They are widely used in the electronics industry for storing printed circuit boards (PCBs), IC integrated circuits, hard drives and CDs.

Static shielding film typically has a four-layer structure: static dissipative coating, polyester, aluminium shield and static dissipative polyethylene. The static dissipative layer offers a low charging outer-surface. The polyester layer of the film works with the metal layer to provide a Faraday Cage. In addition, the aluminium layer helps to suppress any electric fields, while the polyethylene layer prevents electrical tribocharge.

As for the properties, most static shielding films have a typical thickness of 75 microns thick to offer good scratch protection for the electronics inside. When looking to purchase static shielding film, you would want to make sure the film has a good thickness of around 75 microns. While thickness is one factor, the transparency of the film is another. Static shielding film is notable for its semi-transparent appearance. The semi-transparency enables for easy identification of the contents inside the ESD protection film.

Static shielding film can often be confused with anti static film or pink film. A helpful tip to differentiate the two is to think of the colour. Static shielding film is semi-transparent (which can appear as grey or silver in colour) and anti static film / pink film is typically pink or red in colour. Despite this, it’s always best recommended to check the product’s specifications so you can be sure of the electrical properties. See Bondline’s static shield film material.

What Is Moisture Barrier Film?

Moisture barrier film offers exceptional protection for static sensitive and moisture sensitive electronic devices, particularly SMT (Surface Mount Technology) products. This type of packaging film helps to protect electronics from moisture and static damage during storage and transit e.g. integrated circuits or PCBs. The film is typically utilised in industries with humid environments.

Although static shielding film and moisture barrier film are both silver/grey in colour, their transparencies set them apart from each-other. In contrast to static shielding film, moisture barrier film is opaque and light-tight in appearance. This ensures the contents cannot be seen from the outer-layer, providing an extra layer of operational security.

Generally, moisture barrier film is constructed with three layers: static dissipative polyester, aluminium shield and static dissipative polyethylene. The aluminium layer offers discharge shielding, blocks moisture and minimises the penetration of electric fields and electrostatic discharges (ESDs).

Moisture barrier film is typically 100 microns thick (4 mils) to provide good protection and flexibility for the contents inside. There are many benefits for using moisture barrier film, including the following:

• Suitable for vacuum-sealing
• Puncture-resistant
• Moisture-proof
• Opaque
• Faraday Cage protection

One of the best ways to optimise the performance of your moisture barrier film is using a desiccant bag and a humidity indicator card alongside it. See Bondline’s moisture barrier material.

Alternative ESD Films

While the above four types of ESD films are more commonly used, there are several other types of ESD packaging films that are utilised for different reasons.

Bubble film

Low-charging, anti static bubble film or wrap is an excellent packaging choice for the protection of electrical products. Many businesses utilise the film bubble as a secondary packaging material to maximise air retention and cushion the products against shock and vibrations. As with anti static film, bubble film is pink in colour – an easy way to identify anti-static bubble film to regular bubble film.

Polyimide film

ESD anti-static polyimide film is another type of ESD packaging film that can be used to protect electronic products. Often, the film material is processed into anti-static high-temperature adhesive tapes. An example of this type of tape can be seen below.

This particular film is high-temperature insulating which is ideal for class F and H insulation. Many industries such as aerospace, military, automotive, medical and electronics use polyimide film for its superior thermal resistance and electrical insulating properties. They are widely used in the electronics industry for flexible cables and as an insulating film on magnet wire.

Due to the film’s electrical isolation ability and large range of temperature stability, the anti-static polyimide film is mostly used in electronic manufacturing as an insulation and protection layer on ESD sensitive and fragile components.

The film is top coated with an ESD coating to ensure low electrostatic discharge at unwind or removal. Its high temperature stability makes the film a reliable choice for insulation in applications subjected to various types of environmental stresses. There are many benefits of using anti-static polyimide film – here are some of the top benefits:

• Excellent high and low temperature resistance
• Electrical insulation
• Radiation resistance
• Can be used for temperatures up to 400°C
• Lightweight
• Flexible
• Resistant to heat and chemicals

Laminating film

In contrast to the ESD films listed above, this type of film is used as part of an EPA stationery kit. ESD laminating film, also called ESD laminate pouch, typically comes in the form of sheets. This type of packaging material is used for the storage of paper documents i.e. instruction manuals, allowing you to contain and organise all loose sheets of paper within a sealed sheet. Opaque ESD laminating film is resistant against chemicals and provides full protection against static charge. This film is usually used in static control environments (EPAs), particularly in the electronics and Cleanroom industries. Many Cleanroom companies opt for laminate sheets to avoid the extra cost of Cleanroom paper which can be expensive! Some laminating sheets work with standard office laminating machines.

Customise Your ESD Film With Bondline

Bondline Electronics – trusted experts in anti-static packaging since .

With competitive price and timely delivery, Tongxi sincerely hope to be your supplier and partner.

It’s important that packaging is reliable and offers good protection for the contents inside the film: that’s where Bondline can help. Bondline provides various types of reliable, ESD packaging film including static shielding film, pink anti static film, moisture barrier film, laminating film, bubble film and black conductive film.

Our films can be tailored to any size, thickness or printing you may require. Our pink film rolls can specially be made in additional colours to suit your liking. 

Our team is always on hand to provide their expert advice. If you have a query regarding ESD film or would like some help with choosing the right type, please don’t hesitate to get in touch!

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A lot of people are aware of regular high charging tape in ESD Protected Areas (EPAs) and know that these should be replaced with ESD tape. However, there is a lot of confusion out there as to what type of ESD tape should be used for what application. So, to alleviate the confusion and ensure that you choose the right kind of ESD tape, we’ve compiled this list of the different types of ESD tape available to you and what they can be used for.

ESD Meaning

Firstly, let’s recap on what ESD is. ESD is an acronym for Electrostatic Discharge. Quite simply, ESD can occur when there is an electric charge between two or more surfaces. When in contact with one another, these surfaces can rub, create friction and thus become electrically charged. As the two surfaces have different charges, this can cause an ESD, resulting in a static shock. While it is a common nuisance in our everyday lives, it can be detrimental to businesses in the electronics field where static must be controlled.

ESD Tapes

Similar to regular cello-tape, ESD (Electro-static Discharge) tape is a type of adhesive tape that can be used for various applications. What differentiates ESD tape to regular tape contains anti-static properties. This allows the tape to be used around or placed onto electronic components or devices without the risk of static discharge. ESD tape can be naturally anti-static, but the majority of ESD tapes have been treated so that as it is unwound or used, there is very little risk of static charge.

Commonly, ESD tape is used for the sealing of ESD packaging such as bags and boxes. However, depending on the type of ESD tape, some can have heat resistance properties that allow them to be used for masking during wave soldering.

What Is ESD Tape used for?

ESD safe tape is primarily used as a protection device which can help prevent static generation and dissipation that can affect static sensitive components and devices. ESD tape can help to reduce the risk of contamination of your electrical products; including printed circuit boards, integrated circuits, memory chips and semiconductors. Often, it is used in addition to storing equipment in a cleanroom.

Exposing your products to electrostatic discharge can often lead to ESD damage. This can be irreversible and can sometimes go unnoticed until months or even years in time. Therefore, managing the risk of ESD is very important.

Types of ESD Tape

When we think about ESD tape, anti-static tape may be the first to come to our minds. However, in fact, there are many different types of ESD tape that have been curated for various uses and applications.

ESD tape can vary according to:

• The material it is made from: some tapes can be dissipative, others may be conductive or neither.
• Its size, width or length: some sizes are more suitable for masking and others better for sealing bags or boxes.
• Its colour and design: tape can be plain, clear, opaque, patterned or even have a printed ESD logo.
• The technical properties: some tapes have heat resistance while others may be low-charging.

It is important to consider the material, technical properties, size, colour and design of the tape as this can have a significant impact on the application.

So, what are the types of ESD tape you can use? Here are eight common examples.

1. ESD conductive shielding grid tape

2. ESD high temperature tape

3. Non-ESD high temperature tape

4. Anti-static tape

5. ESD blue clear tape

6. Aisle / floor marking tape

7. ESD Awareness Language Tape

8. General Purpose Static Awareness Tape

ESD Conductive Shielding Grid Tape

ESD conductive tape, also known as ESD grid tape, is a popular choice for use in Electrostatic Protected Areas where static-sensitive components and devices are handled. Many people opt for this type of tape due to its anti-static inner and outer surfaces; that will not flake, crack, shed, chip, or rub off the inner layer grids. Often, you will find that most ESD conductive tapes can be used in conjunction with an ESD tape dispenser which is very convenient for bench work.

Commonly, the tape is used for sealing primary or intimate packaging due to its EMI shielding. While it can be used to seal ESD packaging and containers, it can also be used for the following applications:

Applications:

• Areas where the generation of static electricity is of concern.
• To secure (bundle) IC tubes.
• Used as ESD symbols for ESD awareness.
• To cover external holes, plugs, or connector pins on electronic chassis (black boxes, etc.) during transportation or storage.
• Tape dispensing: the voltage generated by unrolling will effectively be reduced to zero.
• Sealing primary or intimate ESD packaging.

Typical features of ESD grid tape:

• Three-layer tape: conductive grid buried between two static dissipating co-polymer substrates.
• Beige with black grid pattern.
• No shed, crack, flake, chip or rub off the inner layer grids.
• Low-charge surface.
• ESD symbol to IEC--1-5 printed throughout the tape
• No shed, crack, flake, chip or rub off the inner layer grids.
• Available in a variety of widths to suit various applications.
• Most can be used with an ESD tape dispenser.
• Complies to IEC--1-5 International Standard.

ESD High Temperature Tape

If you are looking for a tape that offers high heat resistance that will remain stable across a wide range of temperatures, then ESD high temperature tape is the best option for you. This type of tape is widely used for masking printed circuit boards during wave solder or solder dip processes due to its high heat insulation properties; protecting fragile components during manufacture. You may also find polyimide tape used for solder wave masking and electrical insulation.

Applications:

• Masking gold leads and other components on boards populated with sensitive integrated circuits.
• Thick conductive adhesive excellent for conformability to protect critical PCB features.
• Masking off PCBs for IR reflow ovens or wave soldering under 300 °C for ~ 10 seconds.
• Electrical insulation.

Key benefits and features of ESD high temperature tape:

• Can be exposed to high temperatures.
• Temperature resistance up to 300°C short term.
• Provides heat insulation and protects fragile static-sensitive components during manufacture.
• Tape removes cleanly leaving no adhesive residue after exposure to heat.
• Colour: Brown opaque.
• Film construction: Polyimide.
• Available in a variety of widths to suit various applications.
• Complies to IEC--1-5 International Standard.

Non-ESD High Temperature Tape

This type of tape is very similar to the ESD high temperature tape except it does not contain anti-static properties. Therefore, non-ESD high temperature tape should not be used in areas where electrostatic sensitive devices or components are handled. While it is non-ESD, this tape still offers exceptional heat insulation which makes it suitable to use for high temperature masking applications. This type of tape material can also be processed into polyimide film.

Applications:

• PCB 3D printing.
• Transformer insulation.
• Making applications.

Key benefits and features of high temperature tape:

• High temperature resists 260°C.
• Strong tensile strength.
• Heat-resistant silicone adhesive polyimide tape.
• High temperature resistance.
• Solvent resistant.
• Easy peel-off no glue residue.
• Non-ESD.
• Backing: Polyimide film.
• Adhesive: Silicone.
• Colour: Amber.
• Available in a variety of widths to suit various applications.

Anti-Static Tape

A stationery essential for all Electrostatic Protected Areas. Anti-static tape is the ideal type of tape to use for all general purpose applications; a suitable replacement for non-ESD cello tape. It is important that you replace standard tape with an anti-static alternative to comply with the IEC--1-5 International Standard. This will ensure the safety of static sensitive components and devices in the EPA.

Anti-static tape is particularly ideal for sealing conductive plastic bags that are commonly used for protecting static sensitive components (i.e. static shielding bags). It can also be used for various other applications listed below.

Applications:

• Sealing ESD bags and other ESD packaging / containers.
• Temporary labelling of ESDs (e.g. as might be required during inspection and quality control procedures).
• General purpose ESD tape applications.
• Secure (bundle) IC DIP tubes.
• Use with ESD symbols for ESD awareness.
• Holding work orders, instructions, or notes in offices, ESD workstations, or for general purpose.
• Packaging for container sealing, holding IC DIP tubes and static shielding bag closure.
• Conformal coating or holding and sealing supplies in manufacturing.

Features of anti-static tape:

• Made from a natural fibre base and film coated with a rubber-based adhesive.
• Non-static generating.
• Available in a variety of widths to suit various applications.
• Features ESD symbol.
• Most can be used with an ESD tape dispenser.
• Complies to IEC--1-5 International Standard.

ESD Blue Tape

Often, you may come across anti-static tape in different colours. While ESD blue tape is clear blue in colour, it possesses the same properties as anti-static tape. This is mostly down to personal preference.

This type of tape is particularly used to seal conductive / ESD bags or boxes and other ESD packaging materials.

Aisle / Floor Marking Tape

Aisle and floor marking tape can help mark the boundaries of an ESD Protected Area; defining walkways, zones and safe areas. It is typically used outside of entrances to provide a clear warning that people are entering an Electrostatic Protected Area (EPA). Marking tape can be used for marking out the floor area of an EPA, as well as applying to walls. However, this tape should not be used inside the EPA as it lacks ESD control properties.

Floor marking tape can be applied onto most surfaces. It particularly adheres well to synthetic flooring such as PVC floor tiles. It is also suitable for application on concrete flooring where it can be expected to withstand heavy traffic, particle contaminations and remain intact for several months. Marking tape is typically fluorescent yellow in colour with black printing to enhance visibility and awareness.

Applications:

• Used to mark off floors, aisles or walls designating ESD Protective Areas.
• Can be used as area signs.

Features:

• Helps employees and visitors to identify Electrostatic Protected Areas.
• Non-ESD.
• Adheres well to synthetic and concrete flooring.
• Heavy-duty: Can withstand heavy traffic, particle contaminations and remain intact for several months.
• Colour: Yellow with black printing.
• Often made from PVC material.

ESD Packaging Tape

ESD Awareness Language Tape & General Purpose Static Awareness Tape

ESD packaging tape is great to use for packaging items securely. You will often find that these types of tapes are available in multiple languages; most can be added on request. As these tapes do not contain any anti-static properties, they should not be used in areas where electrostatic sensitive devices and components are present.

These tapes are fluorescent yellow in colour with black text / print to enhance awareness. Most ESD packaging tapes are suitable to use with manual and automatic tape dispensers which is very convenient for offices or workstations. Depending on the supplier, you can find eco-friendly options that are completely recyclable.

Application:

• Sealing secondary packaging such as cartons securely.

How To Choose The Right ESD Tape

After reading this article, you will know that ESD tapes come in all sorts of sizes, colours and materials, each with their own unique properties, so make sure you check the specifications to ensure your chosen tape will work for your application. Once you have chosen the right kind of ESD tape, don’t forget to purchase an ESD tape dispenser to go with it.

If you are still unsure of which type of ESD tape you need, our team can help you determine the most appropriate tape for your application and budget. Alternatively, an ESD audit can help you identify which type of tape and equipment you need to comply with the IEC--1-5 International Standard.

Contact us to discuss your requirements of Anti-static Protective Tape. Our experienced sales team can help you identify the options that best suit your needs.

For More Advice, Contact Bondline