I have only recently begun experimenting with linseed oil and walnut oil finishes, after mainly using mineral oil. Today I read this question and realized that my process may be flawed, because I am not pausing at all between applying linseed oil and then finishing with a carnauba wax topcoat.
I found this reference about drying oils in the above-mentioned question, but there's no real indication of how to tell by touch/sight when the curing process has completed.
Right now, my process is:
* Scrape or sand the bowl to a medium grit, usually 220
* Wipe gently with mineral spirits to remove dust in the grain and raise the remaining grain for finer grits of sandpaper
* Wait 1-5 minutes for excess mineral spirits to dissipate/evaporate (sometimes I try to hasten this using puffs from my mini air compressor)
* Sand up to my finishing grain, usually 600 grit and then 0000 steel wool
* Wipe with linseed oil until surface is covered; use a fresh rag to remove excess
* (note, no pause between previous step and this) Apply carnauba wax and buff into surface
...my question is, am I making a mistake here by not waiting for the linseed oil to cure before sealing it in with carnauba wax? If so, how long should I wait / how will I tell when it's OK to proceed to the final wax step?
Thanks for any help/advice you can provide!