Engineering Resources for Plastic Welding and Sealing

This page provides technical resources on plastic welding, hermetic sealing, and alternatives to traditional assembly methods such as gaskets, adhesives, and fasteners.

These guides are intended for engineers and product developers evaluating how to achieve IP67/IP68 sealing, weld dissimilar plastics, and simplify assembly using Emabond RF welding technology.

IP67/IP68 Sealing and Hermetic Enclosures

Achieving IP67/IP68 sealing in plastic enclosures requires more than just selecting a gasket or welding method. The effectiveness of the seal depends on joint design, material selection, geometry, and long-term reliability under real-world conditions such as thermal cycling, vibration, and environmental exposure.

The resources below break down the most common sealing methods, where they succeed, where they fail, and how RF welding can be used to create continuous, gasket-free seal paths for plastic enclosures.

Start here: How to Achieve IP67/IP68 Seals in Plastic Enclosures Without Gaskets:  a complete guide to using RF welding for continuous, gasket-free sealing and how it compares to traditional methods like gaskets, ultrasonic welding, and adhesives.

Alternatives to Potting, Epoxy, and Adhesives

Potting, epoxy, and adhesive bonding are commonly used to seal and assemble plastic components, but they often introduce challenges related to cure time, material compatibility, rework limitations, and long-term reliability under thermal cycling and environmental exposure. The effectiveness of these methods depends heavily on process control, surface preparation, and application consistency.

The resources below break down the most common issues with potting and adhesive-based assembly, where they succeed, where they fall short, and how Emabond RF welding can be used to eliminate cure time and create strong, repeatable, hermetic-style joints without secondary materials.

Start here: Replace Potting, Epoxy, and Adhesives: a complete guide to eliminating cure time, improving reliability, and using RF welding to replace traditional bonding methods in plastic components.

Design Challenges

Designing plastic assemblies for sealing, strength, and long-term reliability introduces challenges that go beyond material selection or choosing a joining method. Factors such as complex geometries, dissimilar materials, internal components, and performance requirements under pressure, temperature, and environmental exposure all influence how a part must be designed to function reliably.

The resources below break down common design challenges in plastic assembly, where traditional approaches can create limitations, and how Emabond RF welding enables greater design flexibility by supporting complex geometries, dissimilar material joining, and continuous, high-strength weld paths.

Start here: Designing Plastic Assemblies for Welding and Sealing: a complete guide to overcoming common design limitations and optimizing parts for strength, sealing performance, and manufacturability using RF welding.

more coming soon…