Im considering bead blasting just the slide on my fs 1911 to my knowledge its a forged steel unit parkerized. Strictly for cosmetic reasons as I plan to mimic the first Ruger SR1911 look a non glaring bead blasted ss gun. I was willing to buy a ss 1911 but in 9mm all were more than 750$ out of my budget. So I went with what was available, parkerized. So my question is after bead blasting aside from a light coat of silicone or gun oil is there any chemical coating or spray to keep it from rusting or turning color. Or should it be fine with just bead blasting. Help me out here.