How do they electrically test condoms?

Consumers can use the condoms freely without worry of hole, because each of them are tested. Condom factories use an Electronic Testing Machine (ETM), also known as a dry or wet pinhole tester. The process ensures 100% of products are pin hole-free:

1. Mounting: Condoms are stretched onto metal mandrels (electrically grounded forms).

2. Electrification: A high-voltage brush or water bath passes over the latex.

3. Resistance Check: Since latex is an insulator, it blocks the current. If a hole exists, a circuit is completed.

4. Automatic Rejection: The machine identifies the voltage drop and automatically ejects the "failed" unit into a waste bin.

While 600V–800V is the industry standard for basic ISO 4074's compliance, Our company and Durex use 1500V to ensure premium structural integrity. Our company located at same state with durex condom plant. Both plants always use same standards in these production process.

Testing at 1500V acts as a stress test, not just a hole check. Higher voltage can penetrate microscopic thinnings or "weak spots" in the latex that lower voltages might miss. This higher dielectric strength requirement ensures a more uniform, reliable barrier. Using 1500V signals superior raw materials and more precise dipping processes, providing a much higher safety margin for the end consumer.

Here we taken voides of this test process, and we also visit you visit us in site to check how tested one by one:

https://www.youtube.com/watch?v=6MxsW7IAQlo

This process is 100% step, because each condoms has to be rolled by this step, or it's flat, which is impossible load into the foil wrapper.