I have three Cerakoted rifles. I have hunted them hard and they hold up. No rust or corrosion. Also my SIL had a fire that affected his gun safe. Only one Cerakoted gun and it came out with just needing a wipe down. The FFs hit the safe with a fog nozzle and the Steam and byproducts got in. Heat stayed at an acceptable level. All guns survived but needed extensive dismantel, and cleaning except the Cerakoted rifle and one in a Sack up. Anything blued was flash rusted badly inside and out.
I have never used the Micro Slick and that is the question. Black T worked perfect on bolts wondered if this would be similiar...
