great question, and i expect there are a lot of different theories floating around. heres mine. staying within one product range will give you the least amount of product interference issues (generally speaking). with that in mind; new wax over old or cured wax, fine. new wax over cured sealant, fine. new wax over cured hybrid, fine. new sealant over cured sealant, fine. new hybrid over cured hybrid, fine. sealant over wax, not really recommended. sealant over hybrid, again not recommended, but you will get away with it with some. dodo juice SN acrylic spritz can be used over SN Hybrid for example, being water based rather than spirit based its very forgiving as sealants go. if you tried to do the same with DJ red mist, you'd start stripping the hybrid whilst applying the sealant.
layering waxes or hybrids, allow at least an hour, preferably two between coats. layering sealants is very product dependant time wise. as a rule of thumb i'd suggest a two hour minimum, but some of the fussier ones may need considerably longer. if in doubt, contact the manufacturer.
i would consider hybrid sprays to be more of a 'top up' product a month or so down the line. if you're layering waxes, hybrids and/or sealants then try to do it within a few hours (assuming that is appropriate for the particular product). that way you'll avoid allowing too many contaminants onto the first coat before you apply the second.
it is my understanding that waxes can only be layered to around 5 coats, beyond that you'll start wiping away wax trying to apply more.
hope that helps, rather than adding to the confusion lol. and when all is said and done, Chris is quite right. play around and enjoy. if something doesn't work, strip it off and try something else. its all good fun :dblthumb2:
