Make Polyolefins RF Weldable Without Additives

Up to now, radio-frequency (RF) welding or sealing of films, foams, and fabrics has been limited mainly to polar resins with high dielectric loss factors—particularly flexible PVC and TPU. Nonpolar PE and PP are “invisible” to RF energy unless modified with large amounts of polar additives like EVA, which add cost and negatively affect product properties and processability.  Read More…