Quoted from DNO:I just recently used some of these, and I think side blade art will last indefinitely if you were to be vigilant about using them.
https://www.pinballlife.com/interior-cabinet-protector-blade-set.html
Agreed. I have Stern art blades on my games that have them available and I have never messed one up. They are made of a thicker, much more durable material than others like Pin Graffix. In comparison, I only have ever had Pin Graffix art blades on my LOTR and those were damaged not long after installing them.