HVAC/R SUPER PRO Bonds Copper, Aluminium and Brass in any combination. Starts to set up in 20 seconds and form a solid bond in 3 minutes. In 12 Min the bond will withstand 850 PSI of refrigerants pressure. Bonding time is 1 min for Aluminium and is set in 4 Min.
Approx 2 hour is fully cured and will withstand 1200 PSI of refrigerant pressure.