Whoopz

I prefer the Black Super weather strip adhesive...but it is NOT cheap.

I think this would be a fantastic way to build walls for, say, a teardrop trailer. I don't think it's a great idea to use it for cabinets. Personally. I went with Ford Transit conversion kits, for me wood cabinets are the easy choice. I've finished with cabinets for ford transit, and all that's left is to update the bed.

For most people, it's down to preference. Some don't mind applying wax more frequently, so a traditional carnauba wax is ideal. Others prefer a synthetic base sealant and carnauba spray wax as a topper. You have endless choices, depending on your climate and situation. For starters, you might want to try a hybrid spray wax like Meguiar's Hybrid Ceramic or Turtle Wax Seal and Shine, both are easy to use and should be available locally.