Introduction

PolyTetraFluoroEthylene (PTFE) films, commonly known by the brand name Teflon, have a wide variety of industrial applications due to their unique properties. DeWAL Industries produces high-quality skived PTFE films that provide solutions for medical devices, aerospace components, electrical insulation, and more.

Applications

Medical Devices

Skived PTFE films are ideal for use in catheter tubing due to their smooth surface and high strength. The films resist tearing and have minimal friction, allowing them to work well for maneuvering medical devices within the body. This makes them useful for angioplasty balloons, catheter shafts, and other applications.

Aerospace

In aerospace applications, skived PTFE films provide electrical insulation and resistance to extreme temperatures. DeWAL’s PTFE films meet aerospace flammability standards and perform well as wire insulation and seals for aircraft.

Electrical Insulation

The excellent dielectric properties of PTFE films also suit them for insulating wires, cables, and electrical components. Their heat resistance allows them to withstand soldering temperatures. DeWAL’s line of high-temperature PTFE films are designed specifically for demanding electrical insulation applications.

Other Uses

• Release liners
• Moisture barriers
• Low-friction wear surfaces
• Chemical resistant washers, gaskets, and seals

Benefits of DeWAL Skived PTFE Films

• Wide thickness range from 0.001″ to 0.125″
• Close thickness tolerances
• Consistent quality
• Various attachment options including adhesive-backing
• Supported by technical expertise

Thickness Range

Film Type	Thickness Range
Unsupported	0.001″ – 0.010″
Supported	0.005″ – 0.125″

FQA

What are some key properties of PTFE films?

PTFE films have a unique set of properties including high heat resistance, chemical inertness, low friction, high dielectric strength, and low surface energy. These make them well suited for industrial applications requiring corrosion resistance, electrical insulation, high temperatures, and low friction.

How are skived PTFE films produced?

Skived PTFE films are produced by shaving thin layers from a solid PTFE block using a sharp blade. This allows PTFE films to be manufactured in a wide range of thicknesses while maintaining properties similar to a solid PTFE sheet.

What temperature ranges can DeWAL’s PTFE films withstand?

DeWAL offers standard PTFE films for temperatures up to 500°F (260°C) as well as high-temperature films rated for up to 600°F (316°C). The films provide good thermal stability and chemical resistance at elevated temperatures.

What are some key differences between supported and unsupported films?

Unsupported PTFE films are thinner and provide the full range of PTFE properties. Supported films have a reinforcement material laminated to the PTFE which increases the thickness and mechanical strength but may affect flexibility and dielectric strength.

Does DeWAL offer custom options for PTFE films?

Yes, DeWAL can manufacture custom PTFE films to meet specific application requirements including thickness, width, dielectric properties, and operating temperature range. Skived PTFE also allows for co-extrusion with other materials.