Flame retardant films (UL 94 V0)

What are flame retardant films?

Many applications require flame retardant films that meet certain fire protection classes or specifications. As a film supplier, the König Film Centre offers you flame retardant and thus fire resistant films in various thicknesses and surfaces.

These are flame retardant films with consistent insulation properties and good printability. The main advantages of these products are

• Flame retardancy according to UL94 V0
• Excellent thermal and electrical insulation properties
• High temperature resistance
• High mechanical strength
• Excellent dielectric strength
• Low moisture absorption
• High light transmission

Due to their versatile material properties, flame retardant films are extremely popular and important in many industrial sectors. As a wholesaler, we can supply you with the film of your choice in sheets or rolls. We stock flame retardant films made of the raw materials polycarbonate, polybutylene terephthalate, fluoropolymers and polyertherimide.

What do I need a flame retardant film for?

Flame retardant films can be used for various applications and uses:

• Thermal insulation
• Insulators and spacers
• Labels and overlays
• Printed circuit boards
• EMI shielding
• Fire resistant wall coverings
• Other fire protection items

In these applications, the finished part must pass a specific fire protection test. For this reason, developers look for materials that are also flame retardant and meet certain standards.

Which fire protection standards are relevant?

When is a special film flame retardant? There are different approvals and fire protection classes that vary from country to country. Since many parts made of film are used worldwide, the American standard UL 94 has become the standard in the industry. This is accepted worldwide and is more important than most country-specific standards such as B1 in Germany or M1 in France.

Fire protection standard UL 94

UL 94 is an established standard of the American test laboratory Underwriters Laboratories. According to this flame retardant standard, the burning properties and fire safety of plastics are tested.

Fire resistance according to UL 94 V0

Class V0 is the highest flammability class of plastics according to UL 94.

In the test according to UL 94 V (Vertical Burning), a vertical piece of plastic burns. The fire behaviour of the respective plastic results in the classification into classes V0, V1 or V2. The UL 94 V0 specification is the classification with the best fire resistance.

Our product range of flame retardant films

As a specialist in technical films, we offer various products that meet the UL 94 V0 fire protection standard. These include flame-retardant film solutions made from the raw materials polycarbonate, polybutylene terephthalate, fluoropolymers and polyertherimide from various manufacturers.

Fire-resistant polycarbonate films

Polycarbonate film is characterised by outstanding optical transparency, high mechanical strength and high temperature resistance. These properties also apply to polycarbonate films with flame retardancy.

In our range we offer flame retardant polycarbonate films in different material thicknesses which we distinguish as follows according to colour and surface:

• Crystal clear (highly transparent), glossy PC flame retardant film
• Matt, colourless PC flame retardant film
• Black PC flame retardant film

Flame retardant PC-PBT film

A blend of polycarbonate with polybutylene terephthalate (PBT) makes these film solutions resistant to elevated temperatures. They also feature excellent electrical properties combined with exceptional processability and surface quality.

Flame-retardant PEI film

The central property of the plastic PEI (polyetherimide) is its temperature resistance. The manufacturer of PEI film products specifies a processing temperature of up to 200 degrees Celsius. This sets the PEI film apart from most technical film solutions.

Fire-retardant film made from fluoropolymers

Our extensive range also includes flame-retardant fluoropolymer films from the manufacturer Chemours. This American company is a global leader in the manufacture of fluoropolymer films and is known for its Teflon and Tefzel brands. Chemours offers high-performance films with extreme temperature resistance of up to 260 degrees and many other outstanding properties. Fluoropolymer films made of ETFE, FEP or PFA are therefore also referred to as high-temperature films.

Wholesale - our service and delivery time

The König Film Centre is a wholesaler for technical films. You can buy flame retardant film from us. We can supply you with our flame retardant films in rolls in the desired width or as a right-angled sheet. Just let us know the format you need and we will be happy to cut your order for you within a few days! We will be happy to supply you with a sample of the film that fits best to your application for initial product testing.

If you have any further questions regarding the selection of the right material, relevant fire protection standards or properties regarding fire resistance, please do not hesitate to contact us. We will be happy to advise you on your project or send you an offer tailored to your needs with an attractive price. Trust our know-how as an experienced foil supplier.

FAQ

What are flame-retardant films?

Flame-retardant films are special plastic films that have a flame-retardant effect and meet certain fire protection classes. They offer consistent insulation, good printability and high thermal and mechanical resistance.

What material are flame-retardant films made of?

Flame-retardant films are made of polycarbonate, polycarbonate-PBT, polyetherimide or fluoropolymers such as ETFE, FEP and PFA. These materials ensure high temperature resistance, electrical insulation and fire resistance in accordance with UL 94 V0.

What are the characteristics of flame-retardant films?

Flame-retardant films offer high thermal stability, excellent dielectric strength, low moisture absorption, mechanical robustness, good printability and light transmission in transparent variants.

What are typical applications for flame-retardant films?

Flame-retardant film solutions are used for thermal and dielectric insulation, stamped parts, labels, overlays, printed circuit boards, EMI shielding and wall coverings, especially where fire safety requirements must be met.

In what thicknesses and formats are flame-retardant films available?

Flame-retardant films are available in thicknesses from 0.25 to 1 mm and in widths up to 1220 mm. They can be supplied in rolls or as rectangular cut-to-size sheets.

What are the differences between the Lexan FR 60, FR 65 and FR 700 polycarbonate flame-retardant films?

Lexan FR 60 is crystal clear and glossy, FR 65 is colourless and matt, and FR 700 is black and finely matt. All are UL 94 V0 certified, but differ in surface and appearance.

What does the UL 94 V0 classification mean for flame-retardant films?

UL 94 V0 is the highest fire safety class for plastics. The film is self-extinguishing within 10 seconds after the flame is removed and has a maximum afterglow time of 30 seconds.

Why are flame-retardant films important for industrial applications?

Industrial products must comply with fire safety regulations. Flame-retardant films protect components, provide electrical insulation and increase safety at high temperatures or when sparks are generated.

What are the advantages of flame-retardant PEI and fluoropolymer films?

PEI films are characterised by very high temperature resistance up to 200 °C. Fluoropolymer films (e.g. Teflon®) can withstand extreme temperatures up to 240 °C and offer excellent chemical resistance.

Can I get flame-retardant films cut to size?

Yes, deliveries are made in rolls or cut to size into rectangular sheets. Samples for material testing are also available on request to help you choose the right product for your project.