Hello!
Ok, well im sure you havent got many replies as its probably not that much of a popular product.
As far as i understand, Satin Prot is a low sheen interior dressing (i presume you can apply it to other surfaces too). The 1Z equiverlant product would be 1Z Einszett Cockpit Premium Interior Plastic Cleaner, which i have used. Fresh scent and leaves a look and clean similar to Meguiars Interior Detailer.
IM sure Tiefenpfleger is aimed more at exterior rubber since its water proof and not interiors, though no doubt there is cross over.
Geoff