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Birchwood-Casey Gun Scrubber Spray - Safe? #4577864
11/18/17 10:28 AM
11/18/17 10:28 AM
Joined: Jul 2012
Posts: 2,103
Nashville, TN via Memphis
john_pifer Offline OP
john_pifer  Offline OP
Joined: Jul 2012
Posts: 2,103
Nashville, TN via Memphis
Seems to be a great way to get rid of carbon deposits, especially from the nooks and crannies where it's hard to reach with a patch. Yesterday I cleaned the chamber lug area of the new AR-15 this way - just sprayed down with Hoppe's Elite foaming cleaner, scrubbed with an old toothbrush, and then hosed it out with the Gun Scrubber. What I was a little concerned about was the anodized aluminum finish of the upper. But it didn't seem to affect it.

I looked up the MSDS, and it's composed of about 70% isopropyl alcohol and 30% hexane, which Wiki states is a "relatively safe, largely nonreactive solvent":

https://www.birchwoodcasey.com/getattach...l-2010.pdf.aspx

https://en.wikipedia.org/wiki/Hexane

I also used the same method on the Dan Wesson Heritage 1911 - soaked inside of slide and frame with the Hoppe's Elite foaming cleaner, toothbrush to knock all the carbon loose, then hosed out with the Gun Scrubber. Again, I was a little concerned that it might discolor the matte stainless finish of the frame, but it didn't. I did remove the G10 grips first. I sprayed into the extractor (it's never been apart) and quite a bit of crud came out. Anything wrong with doing that?

Another thing - I have read in a few places on here where people said that non-chlorinated brake cleaner "is the same thing as Gun Scrubber". Well, I looked up the MSDS for a popular aerosol brake cleaner - CRC Brakleen, and it is definitely NOT the same thing as Gun Scrubber. While Gun Scrubber is mostly isopropyl alcohol (very mild solvent) with some hexane (mild petroleum distillate solvent), CRC Brakleen contains quite a few other ingredients, the most troubling of which are toluene (10-20%) and acetone (5-15%), which I know to be strong solvents. Brakleen's main constituent is methyl alcohol, which is definitely stronger and more harsh than isopropyl alcohol.

CRC Brakleen MSDS:

http://docs.crcindustries.com/msds/5088.pdf

So, any gun finishes the BC Gun Scrubber spray wouldn't be safe for? What about, for example, the high-polish blueing on my Browning Hi Power?


16 WRX - PPPP
07 Tacoma V6 - M1 EP 5W-30, Fram Ultra, 10K OCIs, 198K
07 Yamaha R1 - Rotella T6 5W-40, Bosch 3300
07 Yamaha YZ-250, Klotz, Rotella

Re: Birchwood-Casey Gun Scrubber Spray - Safe? [Re: john_pifer] #4577953
11/18/17 12:50 PM
11/18/17 12:50 PM
Joined: Mar 2015
Posts: 5,142
Glendale, Arizona
billt460 Offline
billt460  Offline
Joined: Mar 2015
Posts: 5,142
Glendale, Arizona
The biggest problem that I've found with products like "Gun Scrubber" and aerosol brake cleaners and the like, is they act like a refrigerant. They can and will reduce the temperature of the metal they are being used on, to the point of causing it to frost up. In a humid climate with a high dew point this can cause condensation to form on the internals of a gun where it can't be wiped off. Rust is most always the result. Try spraying a blast of it on your finger, and you'll quickly see what I mean.

I much prefer to use clean Kerosene and a small paint brush, along with toothbrushes to wash out dirt from weapons. Then blow dry with compressed air. Kerosene is basically a very light oil that can easily be blown completely dry. And without chilling the metal it comes in contact with. It's a much better solvent than Gun Scrubber or brake cleaner, which is, as you mentioned mostly alcohol. The purpose of any of these type of products, is to flush dirt out of a weapon. And an oil based product will not create an environment for condensation and rust to form.

Re: Birchwood-Casey Gun Scrubber Spray - Safe? [Re: john_pifer] #4577990
11/18/17 01:27 PM
11/18/17 01:27 PM
Joined: Aug 2008
Posts: 3,171
USA
Reddy45 Offline
Reddy45  Offline
Joined: Aug 2008
Posts: 3,171
USA
I've used gun scrubber on most finishes with no issues. However, it is fairly expensive for what it is, so I reserve it for nooks and crannies like the chamber of an AR15 like you mentioned. It has no effect on anodizing except that it leaves it chalky dry.

So I wouldn't see myself using it to spray down the outside of a blued $4K O/U shotgun.. an oiled rag would be more than adequate for such a case.

I've even used non-chlorinated brake cleaner to clean guns in the past -- no issues as long as you reoil everything after.

Re: Birchwood-Casey Gun Scrubber Spray - Safe? [Re: john_pifer] #4578120
11/18/17 04:23 PM
11/18/17 04:23 PM
Joined: Dec 2003
Posts: 2,202
Chicago IL
ChiTDI Offline
ChiTDI  Offline
Joined: Dec 2003
Posts: 2,202
Chicago IL
Not safe on some camo covering.

Re: Birchwood-Casey Gun Scrubber Spray - Safe? [Re: john_pifer] #4578668
11/19/17 09:08 AM
11/19/17 09:08 AM
Joined: Apr 2005
Posts: 280
Chadds Ford
Toros Offline
Toros  Offline
Joined: Apr 2005
Posts: 280
Chadds Ford
I use the cheapest non chlorinated brake cleaner I can find on all!of my guns... even the play ones. No problem.

Re: Birchwood-Casey Gun Scrubber Spray - Safe? [Re: john_pifer] #4578831
11/19/17 11:33 AM
11/19/17 11:33 AM
Joined: Dec 2004
Posts: 9,332
1/2 hr N.E. of Detroit
Triple_Se7en Offline
Triple_Se7en  Offline
Joined: Dec 2004
Posts: 9,332
1/2 hr N.E. of Detroit
In sprays, I use Hoppes Elite foam (with a brush) and Ballistol aerosol for the nooks & crannies.

Do not own a AR-15.


She's the only sister-in-law I have. But she's not my favorite.
Re: Birchwood-Casey Gun Scrubber Spray - Safe? [Re: Triple_Se7en] #4579252
11/19/17 06:10 PM
11/19/17 06:10 PM
Joined: Jul 2012
Posts: 2,103
Nashville, TN via Memphis
john_pifer Offline OP
john_pifer  Offline OP
Joined: Jul 2012
Posts: 2,103
Nashville, TN via Memphis
Originally Posted By: Triple_Se7en
In sprays, I use Hoppes Elite foam (with a brush) and Ballistol aerosol for the nooks & crannies.

Do not own a AR-15.


Yeah, Iíve actually had a bottle of the Hoppeís Elite Foam for a while but only just used for the first time this past weekend. Sprayed it inside my Dan Wesson 1911 Slide, on all the carbon residue. Then scrubbed with an old toothbrush and then rinsed out with the BC Gun Scrubber. Worked great. That Elite Foam has almost a bubblegum scent. Slightly similar to good ole #9.


16 WRX - PPPP
07 Tacoma V6 - M1 EP 5W-30, Fram Ultra, 10K OCIs, 198K
07 Yamaha R1 - Rotella T6 5W-40, Bosch 3300
07 Yamaha YZ-250, Klotz, Rotella

Re: Birchwood-Casey Gun Scrubber Spray - Safe? [Re: john_pifer] #4579484
11/19/17 09:39 PM
11/19/17 09:39 PM
Joined: Mar 2008
Posts: 5,841
South Florida
bubbatime Offline
bubbatime  Offline
Joined: Mar 2008
Posts: 5,841
South Florida
Since we are talking about AR15 platform rifles, if it has a "mil-spec" style upper, it will be coated on the inside with a grey dry film coating. This is part of the "mil-spec".

I have learned over the years that brake cleaner, and other harsh cleaning chemicals, such as gun scrubber, will damage the dry film coating and remove it. I no longer use or recommend a heavy duty cleaner on AR uppers.

And for those that had no clue that most AR uppers come with a grey dry lube finish applied, this is what BCM has to say about it:

"Dry Film Lube
One of the most common questions/concerns/complaints we get on the BCM upper receiver is the interior finish. Some folks think its unfinished anodizing, or worn finish, or some type of problem. What you are seeing is a dry film lube and itís a good thing. Many commercial upper receivers may skip that step as it is a cost savings, and most folks would not notice the difference. But Uncle Sam wants it on there, and so does BCM. The dry film lube is a grayish milky type finish. It is sprayed on the interior after the hard coat anodizing is applied. It is then baked into the receiver for about 45 minutes at 250 degrees. The dry film lube is just what it sounds like. It adds lubricity to the interior of the receiver where the bolt group and charging handle travel. Itís a good thing."


17 Chrysler Pacifica Mobil 1 5W30
13 Yamaha XT250 Valv MC 10W40
12 Suzuki S40 Rotella 15W40
10 Acura TSX 2.4 PZL Plat 5W30
06 GMC Sierra Nextgen 10W30


Re: Birchwood-Casey Gun Scrubber Spray - Safe? [Re: bubbatime] #4579683
11/20/17 04:40 AM
11/20/17 04:40 AM
Joined: Mar 2015
Posts: 5,142
Glendale, Arizona
billt460 Offline
billt460  Offline
Joined: Mar 2015
Posts: 5,142
Glendale, Arizona
Originally Posted By: bubbatime
And for those that had no clue that most AR uppers come with a grey dry lube finish applied, this is what BCM has to say about it:

"Dry Film Lube
One of the most common questions/concerns/complaints we get on the BCM upper receiver is the interior finish. Some folks think its unfinished anodizing, or worn finish, or some type of problem. What you are seeing is a dry film lube and itís a good thing. Many commercial upper receivers may skip that step as it is a cost savings, and most folks would not notice the difference. But Uncle Sam wants it on there, and so does BCM. The dry film lube is a grayish milky type finish. It is sprayed on the interior after the hard coat anodizing is applied. It is then baked into the receiver for about 45 minutes at 250 degrees. The dry film lube is just what it sounds like. It adds lubricity to the interior of the receiver where the bolt group and charging handle travel. Itís a good thing."


Originally Posted By: bubbatime
....Dry lube on guns is pretty much a no-no these days. It WAS a recommendation 25 years ago, but those days are behind us for the most part.


???????? ???

Re: Birchwood-Casey Gun Scrubber Spray - Safe? [Re: Toros] #4579758
11/20/17 07:24 AM
11/20/17 07:24 AM
Joined: Apr 2005
Posts: 280
Chadds Ford
Toros Offline
Toros  Offline
Joined: Apr 2005
Posts: 280
Chadds Ford
Originally Posted By: Toros
I use the cheapest non chlorinated brake cleaner I can find on all!of my guns... even the plastic ones. No problem.

Re: Birchwood-Casey Gun Scrubber Spray - Safe? [Re: billt460] #4579760
11/20/17 07:34 AM
11/20/17 07:34 AM
Joined: Jul 2012
Posts: 2,103
Nashville, TN via Memphis
john_pifer Offline OP
john_pifer  Offline OP
Joined: Jul 2012
Posts: 2,103
Nashville, TN via Memphis
Originally Posted By: billt460
Originally Posted By: bubbatime
And for those that had no clue that most AR uppers come with a grey dry lube finish applied, this is what BCM has to say about it:

"Dry Film Lube
One of the most common questions/concerns/complaints we get on the BCM upper receiver is the interior finish. Some folks think its unfinished anodizing, or worn finish, or some type of problem. What you are seeing is a dry film lube and itís a good thing. Many commercial upper receivers may skip that step as it is a cost savings, and most folks would not notice the difference. But Uncle Sam wants it on there, and so does BCM. The dry film lube is a grayish milky type finish. It is sprayed on the interior after the hard coat anodizing is applied. It is then baked into the receiver for about 45 minutes at 250 degrees. The dry film lube is just what it sounds like. It adds lubricity to the interior of the receiver where the bolt group and charging handle travel. Itís a good thing."


Originally Posted By: bubbatime
....Dry lube on guns is pretty much a no-no these days. It WAS a recommendation 25 years ago, but those days are behind us for the most part.


???????? ???


LOL


16 WRX - PPPP
07 Tacoma V6 - M1 EP 5W-30, Fram Ultra, 10K OCIs, 198K
07 Yamaha R1 - Rotella T6 5W-40, Bosch 3300
07 Yamaha YZ-250, Klotz, Rotella

Re: Birchwood-Casey Gun Scrubber Spray - Safe? [Re: billt460] #4579837
11/20/17 09:27 AM
11/20/17 09:27 AM
Joined: Mar 2008
Posts: 5,841
South Florida
bubbatime Offline
bubbatime  Offline
Joined: Mar 2008
Posts: 5,841
South Florida
Originally Posted By: billt460
Originally Posted By: bubbatime
And for those that had no clue that most AR uppers come with a grey dry lube finish applied, this is what BCM has to say about it:

"Dry Film Lube
One of the most common questions/concerns/complaints we get on the BCM upper receiver is the interior finish. Some folks think its unfinished anodizing, or worn finish, or some type of problem. What you are seeing is a dry film lube and itís a good thing. Many commercial upper receivers may skip that step as it is a cost savings, and most folks would not notice the difference. But Uncle Sam wants it on there, and so does BCM. The dry film lube is a grayish milky type finish. It is sprayed on the interior after the hard coat anodizing is applied. It is then baked into the receiver for about 45 minutes at 250 degrees. The dry film lube is just what it sounds like. It adds lubricity to the interior of the receiver where the bolt group and charging handle travel. Itís a good thing."


Originally Posted By: bubbatime
....Dry lube on guns is pretty much a no-no these days. It WAS a recommendation 25 years ago, but those days are behind us for the most part.


???????? ???


You don't know the difference between a dry film, baked on coating, called for in the specifications, to that of a dry lube, such as powdered graphite? Ok.


17 Chrysler Pacifica Mobil 1 5W30
13 Yamaha XT250 Valv MC 10W40
12 Suzuki S40 Rotella 15W40
10 Acura TSX 2.4 PZL Plat 5W30
06 GMC Sierra Nextgen 10W30



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