You already have a good synthetic wax by Liqui Moly, If ur car/bike is new then just use it once in 2 weeks time. LQ wax should not be used under direct sunlight and on hot surfaces, it also might be a little harsh on plastic painted parts as it might remove a thin layer of paint from it. Hence use piqui moly hard wax in little quanity on ur side covers.. just a v.thin layer is enough.
Meanwhile when u cant have a full fledge detailing session you can use detailing sprays like i have recently bought one a few days ago and pics are posted 2,3 pages back from now. It is Armour All - Ultra Shine - Wash & Wax - Detailer. Price was 560Rs I guess... its good. Just spray in a little everywhere and then wipe it off with a soft cloth and it emoves all the dust and restores shine.
If u think u must have another wax then go for a mid range caranuba wax prefferably. Like Turtle hard shell wax its around 4/500Rs i think. Cosmic/ formula 1 are cheap brands and mothers and megauirs are expensive.