Radio Frequency / High Frequency welding delivers shaped inflatable and containment products with hermetic seams.
When health and safety are on the line, RF welding services ensure a reliable, airtight bond for essential containment devices. Whether you need to contain liquid, gas or gel, radio frequency
welding is the flexible containment solution.
Contact one of our expert engineers to determine if RF Welding/Sealing or HF welding services are the right solution for your project.
Also known as Radio Frequency and High Frequency Welding, this material bonding process uses electromagnetic energy and pressure to permanently fuse polar thermoplastics. It is a bed-and-press type operation that utilizes a specifically shaped electrode which is typically in the configuration of the desired weld.
When the RF energy passes from the upper tooling and through the material the molecules within the parent materials vibrate rapidly causing the two or more layers of material under the tooling to form a single homogeneous material. An important last step in the bonding process is allowing the newly bonded material to cool under pressure, typically 3-5 seconds. After cooling, the newly bonded area is stronger than the parent material.
The RF-welding process can only be used with materials of a polar molecular construction, the most common being PVC and Polyurethane.
Combining High Frequency Welding together with our ISO Certified Manufacturing process, you get consistent results whether you need 100 pieces or 100,000. Medical equipment like bellows and rebreather system bladders benefit from its clean process that does not employ any adhesives or solvents.
Benefits of RF welding
Choose RF welding when you need
Liquid, air, or solids containment
Customized shapes and attachments
Seams stronger than the base material
Shear tear/splitting resistance
Which products are made with RF welding?
Here are some examples of products constructed using Radio Frequency technology:
Patient positioning cushions
Protective bellows and way covers
Flotation devices with inflation tubes
Fluid delivery and collection bags
Gel-filled therapy pads
Plating tank liners
Which materials can be radio frequency welded?
Radio frequency welding creates strong seams using no additional bonding agents. It can be used to fuse a range of flexible materials including:
TPU Coated Nylon / Polyester
TPU & TPE films
PET & PETG
What Industries use RF welded products?
Industries that benefit from the Radio Frequency bonding process:
The thinnest material we can work with is .002″ thick.
The RF welding process can only be used with materials of a polar molecular construction, the most common being Polyvinyl chloride (PVC) and Polyurethane, although many other coated materials such as polyester are feasible. Other commonly welded materials are EVA, PET and PETG.
Choosing the right sealing process
The best sealing process for any application is determined by the materials, product size and configuration. When you need to use materials or components that are not RF sensitive, Heat Sealing services or Solvent bonding can be alternative options.