Field study proves GORE® Protective Vents to be a lasting safeguard
![White Paper thumbnail](/sites/default/files/styles/resource_full/public/2024-07/White%20Paper%20Image.jpg?itok=h7E-pKVx 1x, /sites/default/files/styles/resource_full/public/2024-07/White%20Paper%20Image.jpg?itok=h7E-pKVx 2x)
White Papers, United States
Optimizing the performance and durability of outdoor electronics
For electronic equipment to function reliably outdoors, intact sealing of the enclosure is vitally important.
These seals are prone to damage due to pressure differentials caused by fluctuating temperatures, and this can compromise the sensitive electronics, resulting in their failure. Reliable enclosure ventilation using GORE® Protective Vents ensures rapid pressure equalization, minimizes potential pressure spikes, and therefore helps to extend service life.
At the same time, the patented membrane technology provides reliable protection against water, dust, salt particles and other liquids, and helps to reduce or eliminate condensation inside the enclosure.
In addition to lab tests, Gore regularly carries out field tests to achieve realistic material aging due to weather and UV radiation. These tests have a common objective: to demonstrate that GORE® Protective Vents reliably protect the enclosure from contaminants and water ingress over the long term and prevent any loss in performance. In this white paper, we bring together the results of our ongoing study from the year 2024 - a study that Gore has been conducting for eight years, that will continue in Putzbrunn, south of Munich.
Design of the Ongoing Study
Fourteen identical aluminum electronic enclosures with neoprene seals were installed in the roof garden of the Gore plant in Putzbrunn. These enclosures have a rating of IP65 which means they are protected against dust ingress (dust tight), have complete protection against contact, and protection against water jets from all directions.
![Putzbrunn plant near Munich with rooftop test area](/sites/default/files/2024-07/GOR502307_Drone_Shot_1200x625px.jpg 1x, /sites/default/files/2024-07/GOR502307_Drone_Shot_1200x625px.jpg 2x)
The enclosures were fitted with different GORE® Protective Vents. One enclosure was purposely not fitted with a vent, to generate comparative values with an unventilated enclosure.
Inside the enclosures, data loggers continuously record the relative humidity, temperature and pressure. In addition, an external sensor for recording meteorological ambient values was installed as a reference. The GORE® Protective Vents were exposed to a temperature range of −15°C to +50°C (values measured by the external sensor). In an unventilated enclosure, these temperature differences give rise to pressure changes that can damage the seal.
![graph: air pressure over time](/sites/default/files/2024-07/GOR202401_Graphic-Air-Pressure-Over-Time_1200x580px.jpg 1x, /sites/default/files/2024-07/GOR202401_Graphic-Air-Pressure-Over-Time_1200x580px.jpg 2x)
The enclosures are inspected and the sensor data are being analyzed at regular intervals. The vents are examined and the data relevant to pressure equalization and tightness, such as airflow and water entry pressure (WEP), are being measured.
Summary
The data from this long-term study show that GORE® Protective Vents effectively achieve rapid pressure equalization of pressure differentials and can prevent pressure spikes, and therefore offer reliable and lasting protection for outdoor electronics. Humidity inside the enclosures is demonstrably reduced, considerably lowering the risk of condensation. Even after 8 years of continuous use, no decline in performance could be found in the GORE® Protective Vents. This study will continue to run over the next several years.
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