Here's hoping I don't get banned again
But I'll state this to only help in the clearing up the meaning of "permanent".
I have been told that within the car product industry if you had a protectant that lasted a year or more it would be considered permanent while many would say that it is really "semi-permanent" but then using that line of reasoning the paint itself would be "semi-permanent" for it can wear off or even be removed.
Same goes for leather, vinyl, pinstripes, etc. If a company makes a product then that can last up to 3 years or more then using the word "permanent" would seem to fit well even though it can be removed or eventually wear away.
Most paint shops that I know only guarantee the paint jobs for a limited time not for the life of the car even though they consider the paint to be "permanent".
When I describe the product to people I say it's "semi-permanent" unless I'm talking about it in greater depth where I can better explain "permanent".
Anthony