The PTFE is a powdered Teflon additive to make the mix more slippery. The paraffin oil is there to make the wax softer. Oz went from a PTFE / paraffin oil/ paraffin wax soak to just a paraffin wax/ ptfe soak. I'm trying straight up paraffin wax soak and will make the xylene, wax and oil mixture as a bottle additive to touch things up when they get noisy.