05/15/2026
Not all "leak-free" products are actually leak-free and that's by design.
In manufacturing, the goal isn't zero leakage. It's acceptable leakage under normal conditions. And the way you find out if a product passes? Leak testing.
One of the most common and reliable methods: pressure decay leak testing.
Here's the process in a nutshell:
→ Fill the sealed part with compressed gas
→ Isolate it from the supply
→ Monitor for pressure drop over a set dwell time
→ Convert that drop into a leakage rate , i.e pass or fail
It's fast, non-destructive, and fully automatable. Ideal for rigid parts under 3 cubic feet. Think electronic housings, fluid bags, and containers.
But it's not the right fit for every application. Vacuum decay, mass flow, and water bath methods each have their place depending on your product, volume, and sensitivity requirements.
We broke down how to choose in the blog post below. 👇
🔗 https://amsmachinesinc.com/pressure-decay-leak/
Many products marketed as “leak free” may leak under certain conditions. Water bath and pressure decay leak testing are two ways to test.
