If synthetic spray sealants don’t float your boat, why not try a carnauba emulsion?
Supernatural Carnauba Glaze is a silicone-free spray wax that contains a high carnauba solids content, in a cleansing solution.
That means it cleans, adds gloss and a few weeks of protection - all without recourse to silicone oils, unnatural resins or synthetic waxes.
In fact, it could be the perfect top up layer for a carnauba wax, robbing nothing from the original look of the coating and merely enhancing it further.
Probably one of the most 'natural' quick detailers around and as 'bodyshop safe' as any sprayable detailing product can be.