A wax...
A good quality wax should ALWAYS be applied and removed by hand. You DO NOT need your buffer to apply and remove the wax. A real wax has ZERO abrasives and is merely and protective layer.
Use Collinite Fleet Wax Paste Version #885. Liquids just do not last and combo products are nothing more than a short cut that does little but empty your wallet..
This should have been the steps.
#1 Acid clean the hull to remove tannin or rust stains (On & Off Gel or FSR)
#2 Wet sand but ONLY if absolutely necessary
#3 Compound Phase - Heavy duty rubbing compound containing NO silicone and aggressive wool compound grade pad. I recommend 3M Super Duty Compound
#4 Polishing Phase - Finesse It II with a foam or light polishing grade wool pad. Finesse It II is not a compound and not something to follow up a 600 grit with.
#5 Wax Phase - After years and years of detailing boats I have found no wax that lasts longer or goes on and off easier. Apply with a 4" foam hand application pad or a terry cloth hand application pad and wipe off by hand with microfiber rags..
Dog has directed you to more in-depth directions..
Just remember that expensive machine buffing & polishing pads should only be used with compounds and polishes. Waxes and sealants especially cheap ones with high concentrations of silicone will permanently destroy expensive wool pads and it will never wash out. Carnuba's also destroy wool pads. Never ever use compounds or polishes containing silicones and only use products rated as "body shop safe" or that say "contains NO silicone"..
