Plumber's Putty: A soft, malleable compound often used to seal around fixtures like sinks, tubs, and toilets. Putty works to create a watertight barrier between the fixture and the surface that it's attached to.
Pipe Dope (Thread Sealant): A paste or liquid applied to the threads of pipes and fittings to prevent leaks. It creates a seal that prevents water or gas from escaping.
Teflon Tape (PTFE Tape): A thin, white tape wrapped around pipe threads to create a seal. Teflon tape is a go-to choice for many completing DIY tasks, thanks to its ease of use.