Originally Posted by cyccommute

For a very long time, we used Rema patches and Rema vulcanizing fluid in the large cans. There were always some failures due to poor technique. That’s inevitable in a volunteer organization. Then some of the paid staff decided to save money by going to Clark patches. Failures of the patch increased significantly. I estimate the failure went from 1 in 100 to 1 in 10 or 20. The only variable that changed was the patches.