Three-step test method for Rubore® Cover Seals


Three-step test method for Rubore® Cover Seals

To demonstrate the tightness of a Rubore® Cover Seal, Trelleborg Sealing Solutions has used a three-step test method. Successfully passing the test the Rubore® Cover Seal will be used for an electrical sensor.

The test method was as follows:

1. Leakage Test

The sensor housing with the mounted Rubore® Cover Seal was placed into a water bath and connected to a pressure line. Under water, the air pressure system generates a pressure of 0.6 bar inside the housing.

The leakage test demonstrates the initial sealing function without external influences like shocks and temperature.

2. Temperature Shock Test (Thermal cycling test)

The system is exposed to alternating temperatures from -40°C to + 125 °C. The change of temperatures takes place every 30 minutes and is done within 30 seconds. This procedure is repeated running 50 cycles for 60 minutes each.

The thermal shock testing is done to simulate the aging process of the sealing system.

3. High-Pressure Test

The Rubore® Cover Seal was exposed to hot water, using a flat fan nozzle of a high-pressure water blaster which generates 80 – 100 bar water pressure. The mounted device is exposed to the water pressure from three different angles (0°, 30° and 90°).