CZ 75B polished stainless - non-chlorinated brake cleaner and ultrasonic ?

[texas yankee]

I have two polished stainless CZ 75 Bs - I use non chlorinated brake cleaner and an ultrasonic cleaner to clean all of my other blued, stainless, and parkerized pistols, in addition to my Glocks - I've never had any issues with the polymer-framed guns with brake cleaner or in an ultrasonic, but I wanted to check with you experts on the internal parts of the CZ 75B - are there any known issues with using non chlorinated brake cleaner or putting a field stripped CZ 75B in an ultrasonic?    If it matters, the serial numbers are B161xxx and B552xxx - thanks in advance !

[HollowDawg]

i use an ultrasonic on all my blued/black CZs and on my stainless ones too. Solution I use in my ultrasonic is a slightly modified Ed's Red solvent. By volume: 1 part K1 Kerosene, 1 part mineral spirits, and 1 part Dexron ATF. I leave out the acetone(too hard on plastics and some paints) and the lanolin that are in the original recipe. i remove grips and field strip. I always use outside and I don't let the heat get above 110 degree Fahrenheit since I'm not entirely sure what the flashpoint of this stuff is. I have been using this method for 6 years now with never any problem on any pistol or revolver. Gets everything really clean except the barrel bore(somewhat cleans it) that I swab w bore cleaner after the ultrasonic bath. Drip dry parts on paper towel.  i find the Ed's leaves a very light coat of oil on everything. wipe off the exteriors w paper towels and Q-tips for hard to get spots. Tetra on the high wear spots. Total takes maybe 5 mins after bath to finish. Never need carb cleaner this way. Amazing how much powder fouling etc ends up in bottom of ultrasonic after it settles out!!!

[HollowDawg]

oops! Meant to add to the above that I have never used this method on a polymer frame. Don't own one so can't speak to the solvent's affects on polymer frames.