[header] How to use pipe joint compound [title] Brush the pipe dope onto the pipe or fitting. [step] Unscrew and remove the lid from the bottle of sealant. Most products will include a small applicator brush on the underside of the cap. 
Use this applicator to smear the liquid sealant liberally onto the threads of the male pipe fitting. [substeps] Make sure the pipes you're sealing are clean and dry prior to applying pipe dope.