Test Your HVAC Tool Knowledge: How Many Do You Know?What type of HVAC tool is most commonly used for pipe joint sealing?100%Next Post Correct Incorrect Pipe joint compound is applied to pipe threads to create a leak-free seal in HVAC systems. What type of HVAC tool is most commonly used for pipe joint sealing? Pipe joint compound Pipe wrench Silicone sealant Pipe insulation 100%