What are the most common causes for JFC PRO leaks?
A. THE 8 MOST COMMON REASONS WHY A JFC PRO BOND FAILS 1. The pipe or the fitting was cleaned with something other than 60-grit emery cloth. DO NOT use a wire brush or any sanding material with a finer grit than 60. (The reason that 60-grit is necessary is that it cuts a deep groove into the copper which provides for up to 50% more bonding area. The increased bonding area increases the strength of the bond.) 2. The area to be bonded was not completely cleaned (sanded). (For example, when cleaning a pipe or fitting that was previously soldered, 100% of the solder must be removed as JFC PRO will not bond to solder.) 3. The sanded area is wiped off with the hand or a cloth. (Wiping the sanded area leaves oil and film on the surface of the copper. JFC PRO will not bond to oil or film.) 4. The sanded area is blown clean. (Two things happen when the sanded area is blown clean. (a) The copper dust, which is beneficial to the strength of the bond, is removed; and, (b) oil from the air compresso
