Radio Frequency Welding

Wikipedia defines "Radio Frequency Welding" as: ..."a plastics joining process that utilizes high-frequency radio waves to heat plastic parts to the point they form a melt layer. After the development of the melt layer, the parts are pressed together and then allowed to cool causing fusion.

This process is capable of producing high quality joints in a range of plastics. Advantages of this process are fast cycle times, easily automated, repeatable, and good weld appearance. While this process has some great advantages, there are some limitations. Only plastics which have dipoles can be heated using radio waves and therefore not all plastics are able to be welded using this process.

This process is not well suited for thick or overly complex joints. The most common use of this process is lap joints or seals on thin plastic sheets or parts."

Radio Frequency Welding, has been the main focus of our business since 1987, and we are one of the best at it.

if you are Looking for a domestic supplier that can RF weld and sew your Vinyl or Urethane components to specification, you have come to the right place

APPF Inc. offers a variety of radio frequency (RF) welding, and sewing services to accommodate a diverse range of applications and industries. We are contract manufacturers that build to print.

Our radio frequency (RF) welding services are well suited to handle both small and very large components like 100’ long 300lb Shelter Panels (LAMS), tank liners, Oil Boom and Spill containment systems as well as inflatables, and other plastic components for the military and medical industry.


Some of the materials we work with include:

  • ✓ Urethane
  • ✓ PVC
  • ✓ Urethane coated Polyester and Nylon
  • ✓ PVC coated Polyester and Nylon
  • ✓ RF weldable webbing
  • ✓ Double and triple laminates

APPF relies on tried-and-true plastic dielectric welding processes and state-of-the-art computer driven equipment to meet high standards across the board. With our broad range of experience and extensive inventory of radio frequency welding equipment, our radio frequency heat sealing services will be tailored to your precise specifications. We build a wide range of products as diverse as radar and laser reflective Navy target balloons and Class I medical devices to one set of high standards. This is possible because we follow CGMP specifications which is why it is possible for our radio frequency (RF) welding services to deliver 1st quality products every time. All of our Medical Devices are FDA Class 1 Certified and compliant with ISP 9001:2008

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