Combined with temporary protection sheet

Combination comprising (i) a piece plastic component or (ii) a semifinished product of plastic with a layer system protection system topcoats a plastic sheet and a layer of organosilicon plasma polymer comprising, being arranged layer organosilicon plasma polymer between (i) piece plastic component or (ii) semifinished product plastic and the plastic sheet and adhering the layer of organosilicon plasma polymer after curing (i) piece plastic component or (ii) semifinished product plastic the plastic sheet more firmly than the (i) piece plastic component or (ii) semifinished plastic product being quantitative relationships substance layer organosilicon plasma polymer measured by XPS 1.00 <= n (O + N): n (Si) <= 2.20 1.20 <= n (C): n (Si) <= 2,00 0 70 <= n (C) n (O + N) <= 2,00 and shape parti ticularly preferably 1.25 <= n (O): n (Si) <= 2.10 1.60 <= n (C): n (Si) <= 2.00 0.80 <= n (C): n (O) <= 1,80.