Good question, this one is 4 years old but no updates on durability.

https://pinside.com/pinball/forum/topic/ceramic-clear-coat-observations-and-thoughts

following

Mirco has used (or offered a ceramic clear) as an option years ago. I had a Mirco reproduction TZ playfield with ceramic clear on it. It did not hold up well, very brittle. Unsure if they still use a ceramic clear coat now.

Was thinking the same a while back, so asked Mr. Kruzman if he ever used it...his reply below:

"I have used ceramic and it is hard as a mutha, the problem is you can't work it. You can't block it and then polish it, you can't really even compound it, it's so fricken hard. so I stopped using it."

I think there are 2 different products people are talking about. The coating the op is asking about is more like a wax. The other is a clear that gets exceptionally hard, I think a few automakers experimented with it as a scratch resistant coating.

I worry about Shine Armor as it is water based. Wonder if it would swell the playfield or since you wipe most of it away there would not be enough moisture to do any damage.

Ceramic War Wax is also water based.

Ingredients CAS Number Function
Water 7732-18-5 Diluent
Polyalkylsiloxane with Functionalized Silica Withheld as CBI Film Former
Light Aromatic Hydrocarbons 64742-47-8 Solvent
C12-16 Alcohols Ethoxylated 68551-12-2 Surfactant
Organo-modified Silicone Withheld as CBI Water Repellent
Light Aromatic Hydrocarbons 8052-41-3 Solvent
Triethanolamine 102-71-6 Neutralizer
Acrylic Polymer Withheld as CBI Film Former
Isopropanol 67-63-0 Solubilizer
Benzyl Benzoate 120-51-4 Fragrance Component
Bronopol 52-51-7 Preservative
Acid Blue 9 3844-45-9 Colorant
Methylchloroisothiazolinone 26172-55-4 Preservative
Methylisothiazolinone 2682-20-4 Preservative

Hmm, I'll stick to using 2PAC.