Why does it take longer for HVAC SUPER PRO to bond to aluminum than to copper? The negative valance for aluminum is much less than for copper, so it takes longer to react with HVAC SUPER PRO. Why does HVAC SUPER PRO only work on copper, brass, and aluminum? Copper, brass, and aluminum all have a negative valance which is highly reactive with HVAC SUPER PRO.
HVAC SUPER PRO hardens into an strong acrylic in the absence of air. HVAC SUPER PRO is an anaerobic specifically formulated for bonding metals with a negative valence. Is HVAC SUPER PRO a type of super glue? No! HVAC SUPER PRO is not a glue of any type. Also, a wire brush, whether steel, copper, or brass, collects contaminates which transfers to the tubing and connector. The use of a steel brush can leave steel particles on the fitting and tubing, which weakens the bond. 1.) It increases the bonding area and strength of the bond, and 2.) assures that the tubing and the connector are completely clean for maximum reactivity.Ģ Can a wire brush be used to clean fittings and tubing? NO! HVAC SUPER PRO does not adhere to steel. Why does the sanding cloth have to be 60-grit? The 60-grit sanding cloth cuts a deep groove into the tubing and connector which does two things. Therefore, the copper, brass, or aluminum must be completely clean. Why do both the tubing and the connector have to be sanded with 60-grit sanding cloth? Because, HVAC SUPER PRO reacts with the copper, brass, or aluminum as part of the bonding process. A HVAC SUPER PRO bond requires a minimum clearance of inch completely around the tubing. Can the fit between the connector and the tubing be too tight for HVAC SUPER PRO to bond correctly? Yes! When the tubing fits snug against the connector, there is no space for the bonding material to bond between the tubing and the connector. What is the maximum gap that HVAC SUPER PRO will seal? The maximum gap that can be filled is inch. Can HVAC SUPER PRO be used on both hard and soft copper and aluminum tubing? Yes! The only requirement for both is that the tubing be reasonably round at the connection and the minimum clearance between tubing and connector be from inch to a maximum of inch. The bond must not be moved after the 10-second time and before 3-minutes. 1 HVAC Super Pro FAQ Application What is the working time for HVAC SUPER PRO? HVAC SUPER PRO can be left on the tubing and connector for several minutes, but when the tubing is inserted into the connector the bonding material starts changing from a liquid to a solid acrylic in 10 seconds.
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