The black from Birchwood Casey won't work with the CZ, either -- but it us great for touching up black (anodized) aluminum frames that don't have polycoat.
I just used it on my P-01 like 3 nights ago...
Know the status of your weapon
Keep your muzzle oriented so that no one will be hurt if the firearm discharges
Keep your finger off the trigger until you have an adequate sight picture
Maintain situational awareness