If I will create a simple arsenal of sealants, I will buy:
FK1000P - being a paste sealant.
DG105/DG601,KSG or Zaino - for durability
OOS, UPGP, BFCS - spray sealant
BFWD or 4*UPP - for that sort of nuba look
Prima Hydro - that unique application
Five products that will satisfy any fancy. :D