In over 30 separate tests a 13.3 m/s (2616 ft/min) water jet was directed at Lip Seals and LabTecta™ bearing protectors in a wide range of shaft sizes and operating speeds.

Lip Seal tests were abandoned after an average of 3 hours, due to an excessive level of water in the housing. The housing oil was then analysed for percentage water contamination.
The 100mm (4.000”) Lip Seal test results, from a 3rd party laboratory, showed 83% (830,000 ppm) and >99% (990,000 ppm) water contamination of the oil.

At 332 rpm the post test results of a 100mm (4.000”) LabTecta™ showed 3 parts per million (3ppm) water contamination. At 1910 rpm the results showed 0ppm water contamination.

Conclusion - A LabTecta™ can and does prevent forced water contamination.