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Rain and adverse weather

Schunk-Motorrad-Kettenschmierung-Fahrtest-nasse-Fahrbahn.jpg

Test conditions
Test roads: Highways and country roads, in many cases with standing water on the road; road salt on some stretches in the winter.
Test kilometers: 3,250 km, of which 170 km were traversed during uninterrupted rain
Temperatures: 5 - 21 degrees Celsius



Conventional viscous lubricants are generally washed off the chain and chain wheels very quickly while driving in the rain to the point where there is in effect no longer any lubrication. During long rainy runs, the chain runs (paradoxically) dry, i.e. un-lubricated. Before the next run, the chain absolutely must be re-lubricated, which requires time and effort. Otherwise, the service life of the chain set will quickly decrease. The lubricating behavior of the solid chain lubrication in the rain has been proven by a host of long-distance tests in continuous rain. On some highway trips, the chain lubrication was also subjected to the effects of road salt.

Conclusion
Lubrication was always present, even during rainy runs, since continuous abrasion of the lubricating rail took place during the entire run. After a long continuous run in the rain, the (securely adhering) lubricating film on the chain wheels had been reduced, but an impervious lubricating film was restored after only 5 km of rain-free driving. Re-lubricating with conventional lubricants was not necessary. The chain is continuously lubricated in the rain, and re-lubrication - mandatory in case of conventional chain greases - isn’t even required afterward! After a long drive in the rain, a slight surface rust formed on the chain when kept outdoors. This rust was removed during the first 25 km of the next run through contact with the solid lubricating rail. The chain was bare metal again. The road salt showed no affect whatsoever on lubricating behavior, the lubricating rail or surface rust formation.

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