I started unbound with a waxed chain last year, and then topped up with synergetic at the aid stations. It worked pretty well. Different waxes perform differently in the wet though. Rex Black Diamond (11 + 1 formulation) or mspeedwax (new formula) look like they may be the best bet for unbound, because they both have lower wear/friction/contamination after the wet contamination block of testing on zfc, and are top 3 in the torture test. Super secret does the best in the torture test so that may be a good option too, especially if there's any chance of rain/mud.
I used wax for SBT GRVL 142 miler and it worked well in those dry conditions, though I added some wax at 100 mile stop. For mud, probably a wet lube (what I use for mtbs)
It's not a secret that wet lube are more efficient (at holding up inside the rollers) in a really muddy and wet environment. I live in Tremblant QC Canada it's muddy in between season I just put parrafin oil (20%) in my parrafin mix it holds up really well when it's wet. *I must add it attracts contamination but less than most oil based lubes, in the cold weather I have another mix with a tad of swix ski wax in the mix 😂
The ‘top up’ drip wax just straight up doesn’t work. Rolls straight over the remaining wax on your chain and the vast majority ends up on the floor. Save your money and just re wax.
silca's rec: hot wax every 5000-10,000 miles (I think). the liquid wax is to lube chain with every 100-150 miles (let dry before riding) to top off wax as it gradually wears away. chains run so much more quiet with wax I don't ever see using oil lubes again.
