The stuff i mention is a weaker version of the gear used on lorries and most valeting companies sell it, including Automsmart, Neilsen Chemicals etc etc if you have a local main dealer garage they will probably have a dedicated valeting bay, so have a sniff in there and ask one of the guys for some that is how i found out!!
But you could give Cif bathroom spray a try!!!
I use that occasionally and highly recommend the LEMON version!! LOL!!
BTW There is 2 types of T-Cut one in the usual red can for plain paint and a blue one for metallics BOTH do not remove the lacquer when i have used them!!