Typical Supra prep for me is:
- 3M Ultrafina SE (a refining polish to correct any minor swirls, harsher compounds are used if needed) used with a DA (or rotary for little more cut)
- Wipe down with IPA/water mix to make sure no polishing oils are left on the paint (allows the sealant to bond better to the paint and therefore last longer)
- 3 layers of Zaino Z2/ZFX or Ammo skin (both very strong sealants and some panels on my car have had it on there for nearly a year and beads like it's only just been applied)
- 1 coat of Ammo Creme - a wax to add depth to the colour and make it pop, I only add this the day before a show or after a full detail.