Radio frequency welding is the ideal fabrication process for many products that need a permanent watertight and airtight seam. The process is effective for a wide variety of products across many different industries, but it isn’t the best sealing process for all products. SealWerks can help determine if RF welding or another sealing service we offer is right for your project.
Materials That Can Undergo RF Welding
RF welding services are often used to fuse PVC (polyvinyl chloride), EVA (ethylene-vinyl acetate), TPU (thermoplastic polyurethane), polymer films, nylon, laminated cloth, certain foams and other materials. However, all materials must have a polar-molecular structure in order for the radio frequency welding process to work.
How the Process Works
Much like the way microwaves alter and heat the water molecules in food, radio frequency welding does the same to the molecules in polar-molecular materials in order to rearrange them and fuse the materials together. A press seals two layers of material together, forming a new layer that is stronger than the original materials. The resulting seam is leak-proof and durable, resisting tearing under harsh conditions.
RF welding is used in the medical, military, government, aviation and pharmaceutical industries, along with many others. Air and fluid containment bags constructed with RF welding will resist tearing over long periods of use. Other products such as PCA hoses also benefit from radio frequency welding, with no risk of air leakage.
While RF welding might be ideal for many products, it isn’t the right process for all of them. Other heat sealing services such as hot air welding and hot wedge sealing might be better suited for certain materials. SealWerks can help determine which service is right for fabricating your product.
If you would like to get started with fabricating a product using RF welding or other processes we offer, contact us today and we will guide you through every step.