[alloy]

i have a few small parts i tried this product on. they are used parts going on a new pistol. grip safety and slide release lever.

they look new now, however they dont seem to be getting any darker.

the instructions say to repeat 3-4 times.
the instructions say to use fine steel wool between each application.

i have applied the paste about 6 times and altho the parts look really nice and uniform...will they continue to get darker if i continue, or do you hit some type of a brick wall after a few applications?

what is the purpose of the steel wool, would not using it have an effect, would using a coarser steel wool have more of an effect.

i am using 0000 steel wool.

any experiences appreciated.