Formex® CND : Flame Retardant Electrical Insulation

Formex™ CND flame retardant polycarbonate is a superior electrical insulation and barrier material for use in industrial and electronic equipment.

The insulating material is available in rolls and sheets and can be fabricated into custom parts. Insul-Fab is an authorized distributor of Formex CND products and offer our extensive inventory with competitive pricing and quick shipment.

If value-add is needed, Insul-Fab converts Formex™ CND with flexibility, quality, and excellent service. Volumes large or small can be accommodated with our diverse equipment for cutting, laminating, forming, printing, and machining.

View the full line of ITW Formex Products

FEATURES

Flame Retardant Polycarbonate (FRPC)
Score and fold capability
Complies with UL 94, CSA, IEC, RoHS and WEEE
UL listed 94V-0 or 94VTM-0. UL Recognized File E121855
Low moisture absorption
Temperature rating: 80°C/176°F
Rolls and sheets available in full or partial standard stock sizes
Value-add fabrication available for prototype and production

DETAILS

Formex™ CND multi-layer, halogen-free, polycarbonate flame retardant electrical insulating materials provide superior electric surge shielding in industrial and consumer electronic equipment. It is also useful as a thermal and electrical barrier material which is reflected in its UL 94V-0 Flame Class Rating. Formex™ materials are available as sheets and rolls or and can be fabricated into a wide range of shapes to meet the flammability and dielectric needs of a variety of applications. Formex™ CND is similar to Formex™ N3 in many aspects but it has been formulated with a lower service temperature for less demanding applications at a lower price point.

Standard Product Availability

Below is a list of the standard products as they are delivered from the factory. Insul-Fab can supply smaller rolls or sheets, per request.

Formex™ CND Products
Formex™ PN	Thickness	Color	Dielectric Breakdown	Standard Sizes
CND-8BK CND-8	.008” (.20mm)	Black Natural	16,029 volts	24” Roll 24" x 48"
CND-10BK CND-10	.010” (.25mm)	Black Natural	17,587 volts	24” Roll 24" x 48"

Fabrication

Fabrication is most commonly done with die cutting or laser cutting to acheive a finished part design. Differrent types of score lines can be applied during the cutting process which allow for the material to be folded neatly into a finished shape, typically during customer assembly. Formex materials can also be heat formed or thermoformed where more complex geometry or rigid bends are required.

Adhesive Backing and Lamination

Many Formex design applications require the use of a pressure sensitive adhesive (PSA) for attachment. Insul-Fab can laminate PSA's to Formex for both bulk material and fabricated part orders. Formex can also be laminated with other materials, such as aluminum foil, to make EMI shielding laminates.

While many adhesives bond well to Formex products, we recommend the following laminating adhesives.

Adhesive	Construction
3M 467MP and 3M 468MP	.002” and .005” unsupported acrylic for performance applications
3M 9485PC	.005” performance acrylic for small contact areas on large parts
Concote CC530 and CC533	.002" and .004” unsupported acrylic for economical larger parts

APPLICATIONS

Formex™ products are used in a wide variety of industrial and consumer electrical and electronic applications as electric surge shielding, compliance barriers, electrical insulation, and thermal insulation. It can also be formed into ducts or baffles to channel air flow for heat management in enclosures. Product applications include:

Power supplies, transformers, and inverters
Electric vehicle battery packs and charging equipment
Servers and data storage system
Telecommunications equipment
Lighting
UPS and surge protectors
Medical Devices
HVAC Equipment and Appliances
EMI Shielding Laminates

RESOURCES

Data Sheets

Formex™ CND Product Data Sheet (PDF)

Brochures & Literature

Formex CND Photo Gallery

Click to Request a Quote
or call us at 214.956.0055