Boy, I don't know why folks are saying not to use it on blued guns? I've been using it for 25 years on all my guns, blued and stainless. After I clean them, I always finish with a thorough coat of Flitz.
I've even recommended it to many people and never had a complaint.
I use it on ALL of my blued guns and they all still shine like they were new. I even use it on my Glock 26's Tennifer finish and it cleans it up like new. I've NEVER had a single problem with it!
I noticed someone said it messed up their 442. I received a new 442 in a trade last year and the first thing I did was put a coat of Flitz on it. In fact, it now has several coats on it with absolutely no problems.
I don't know what folks are doing wrong using it on blued guns but I've had NONE and like I said, I'm not just blowing smoke as I've actually been using it for almost 25 years.
I even had a older mint Colt Python with the beautiful glass like bluing Pythons were famous for and I used Flitz on it dozens of times and it seemed to get SHINIER with every coat!
My 17-6 Smith, Winchester 94, TC, and others all have many coats and they look great.
In fact I loaned my brother my Winchester 94 when he lived in a town right near the ocean in Oregon. When he returned it, it had a couple of spots of rust from the salt air and I took some 0000 steel wool used with Flitz and it was gone.
My 317 even has many coats and it looks great.
I don't know what folks are doing wrong as to say DON'T use it on blued guns!
I use Flitz on EVERYTHING including my knives with turquoise, pearl and other semi-precious handle materials and it works wonders.
25 years ago, Flitz' advertisements started out proudly proclaiming that their product would protect guns blued or otherwise for 6 months.
The only thing I won't use it on is wood.
I use a soft cotton cloth, (like a white 100% cotton t-shirt), and lightly coat the whole gun with it. After I have the complete gun coated, I then take a clean 100% cotton cloth and wipe it all off. Works every time!
I think the problem might be that folks are applying it and taking it off with paper towels or other abrasive materials instead of 100% cotton or micro-fiber cloths.
By the way and like handejector said, the original Flitz when I started using it almost 25 years ago, was made and packaged in Germany. It's now PACKAGED in Waterford, Wisconsin, but the ingredients are still produced in Germany and shipped to them.