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Suppressors Best way to clean heavily fouled TBAC can ?

Time + temperature + mechanical agitation are a bitch.

Things get worse if there's any contamination remaining from machining operations (such as ferrous deposits that act as a site for initial corrosion). On the other hand, chemical passivation via exposure to strong acids post-machining can make a part more resistant to corrosion under these conditions. We don't know any of the factors just by looking at a manufacturer's spec sheet.
Wait, so you’re saying it’s bad for me to blast near-boiling 3000psi CLR into my stainless suppressor for 13hrs that is upon an uncleaned industrial vibratory separator that previously contained rusty parts?

Goddamnit man you don’t know your butt from a toothpick.



wait im describing myself
 
D9A44065-5DBC-409D-8633-2A57975F7310.png


Is this good or
Needs to
Be ZEP?
 
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What’s the mix ratio one should use?
And is this the stuff?


Not sure if that’s a good price for it.

I bought the premixed silencer cleaner. The MSDS says the active ingredient is DMSO and water.



Feel free to mix your own and let us know what works best. Maybe start at 10:1? Make sure you use distilled water and wear heavy gloves, DMSO isn't toxic but anything mixed in the DMSO (lead and copper after you soak your silencer) will enter your bloodstream.

Here is the MSDS: https://m.media-amazon.com/images/I/B15dvqxhuZL.pdf

10% DMSO concentration
 
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I bought the premixed silencer cleaner. The MSDS says the active ingredient is DMSO and water.



Feel free to mix your own and let us know what works best. Maybe start at 10:1? Make sure you use distilled water and wear heavy gloves, DMSO isn't toxic but anything mixed in the DMSO (lead and copper after you soak your silencer) will enter your bloodstream.

Here is the MSDS: https://m.media-amazon.com/images/I/B15dvqxhuZL.pdf

10% DMSO concentration

TL;DR​

  1. DSMO opens your skin to other chemicals. Like the lead, copper, carbon etc that is in the inky suppressor gunk end product.
  2. Thin nitrile gloves probably suck for DMSO. Goes through fast, gets “red” dangerous ratings by Kimberly Clark (a glove maker)
  3. Buy a pure butyl rubber glove for when handling this stuff.
  4. Chem gloves break down with certain chemicals (even the best glove material for that chemical). Plan on replacing them…but in this case I’m not sure if material breakdown is a factor with DMSO+Butyl Rubber.



Yeah, that guy in the vid used a 10% concentration (found in the comments). Maybe you saw that as well.

Now, just figuring out what 10:1 actually means, as far as mixing…well, I happened upon a Quora thread that has chemists either disagreeing, agreeing but saying it differently (hinging on definitions), or talking about different types of end products.

In our case, it probably doesn’t really matter if it’s 9 drops of distilled + 1 drop of DMSO or 10 drops to 1 drop.

ANYWAY

As I seem to be the Hide’s resident “safety glove man” vis-à-vis suppressors, in this case the best glove seems to be a pure butyl rubber one, which apparently don’t allow DMSO to permeate at all?

Viton/Butyl gloves are not great with DMSO, so do pay attention.

See p.6 of the attached Ansell pdf. Their nitrile glove seem to be ok for this stuff (Dimethyl Sulfoxide or DMSO). I’ve highlighted the relevant row. Perhaps it’s due to the glove’s thickness (they come in a variety of styles, all really thick) or special construction?

Ansell’s nitrile Solvex gloves are way thicker than mechanic’s nitrile gloves with most @ 17mils (.46mm). Some at .56mm.

1725594024386.png


The Kimberly Clark pdf says the opposite for DMSO and nitrile.

Their pdf for incidental exposure for their thin nitrile exam gloves (excerpt below; but entire pdf also attached) I think says: at a 99.9% concentration, it takes 8min for DMSO to go through a nitrile glove at a 501 pg/cm2/min permeation rate (ASTM F739-99A).

Which doesn’t mean a lot to me, but they give the glove a red rating.

1725593802917.png


So no nitrile for me when handling this stuff, even at 10% concentration.

As someone mentioned (I think), it seems by itself and with nothing else on your skin or in the DMSO solution, it’s sold over the counter as an arthritis balm and is used by veterinarians too.

As someone ALSO mentioned, DMSO affects the skin barrier, allowing whatever else is dissolved or carried in the DMSO cleaner to pass into your bloodstream. With suppressors, lead is one of those somethings. As well as copper and carbon and who knows what else.

Butyl rubber gloves of sufficient thickness are not cheap, but have lasted me a couple years with a lot of acetone use (cleaning cast iron machinery tops). Then they got tacky feeling and were thrown away.

I imagine the tackiness was caused by the slow ingress of the acetone into the rubber, which was expected, of course. Not sure what are the signs of DMSO breaking down the glove.

Most chem gloves aren’t forever, unfortunately. Certain chemicals just break down even the best glove material. However, in this case I’m not sure if material breakdown is a factor with DMSO+Butyl Rubber, given Ansell’s “—“ permeation rating for their butyl rubber glove.

Here are the ones I use at $63 bucks.

878-09 SHOWA 25 mil size Large

Butyl Chemical Resistant Gloves

You can also buy the 14mil version in large for a bit cheaper, currently at $45.

Unfortunately I think, as with the Dip method of suppressor cleaning, we’re going to see a bunch of accidental poisonings with this stuff when cleaning suppressors.

As a rule, men are stupidly careless around chemicals, with stuff in the air, and around loud noises. Anything that doesn’t immediately cause blood to pour forth, basically.

I am not a chemist, but I can read (sorta) lol.

Please let me know if I’ve interpreted the PDFs wrong, if the manufacturers are bunk, or if there are other resources I should be looking at.
 

Attachments

  • Ansell_8thEditionChemicalResistanceGuide.pdf
    539 KB · Views: 14
  • nitrile_gloves_chemical_resistance_guide.pdf
    2.7 MB · Views: 17
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When looking up what gloves to use with CLR I noticed that the hazardous ingredients in ZEP clr vs CLR clr (lol) are, in fact, different.

Unless someone’s playing chemical word games, adjacent-chemical games or similar.

Chemical companies are a tricky-ass bunch.

CLR brand clr
1725601058702.png


ZEP clr
1725601102835.png


Meanwhile, the Consumer Product Information Database (CPID) lists all of the chemicals for each:

CLR brand (link)
1725602233765.png



Zep clr (link)
1725602184250.png


No idea how reputable the CPID’s data is.

Ah well.

No idea what this means about each’s efficacy at cleaning suppressors. Or proper gloves…been using nitrile but noticed they fall apart faster after exposure with ZEP (haven’t used CLR brand).

On Another Note​

I wonder if this different chem composition has something to do with people’s experiences with CLR when cleaning barrels…etching or not. Other brand’s CLR might have other stuff in it too. @Frank Green ?
 
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When looking up what gloves to use with CLR I noticed that the hazardous ingredients in ZEP clr vs CLR clr (lol) are, in fact, different.

Unless someone’s playing chemical word games, adjacent-chemical games or similar.

Chemical companies are a tricky-ass bunch.

CLR brand clr
View attachment 8495579

ZEP clr
View attachment 8495580

Meanwhile, the Consumer Product Information Database (CPID) lists all of the chemicals for each:

CLR brand (link)
View attachment 8495583


Zep clr (link)
View attachment 8495582

No idea how reputable the CPID’s data is.

Ah well.

No idea what this means about each’s efficacy at cleaning suppressors. Or proper gloves…been using nitrile but noticed they fall apart faster after exposure with ZEP (haven’t used CLR brand).

On Another Note​

I wonder if this different chem composition has something to do with people’s experiences with CLR when cleaning barrels…etching or not. Other brand CLR might have other stuff in it too. @Frank Green ?
That's a good find and may well explain the differences some have seen cleaning barrels vs others
 
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I recently cleaned mine with a few ultra sonic baths with simple green, flushed out with water, then plugged and filled with CLR for 2 hours, then another ultra sonic bath and then flushed out with hot water. View attachment 8495645
I did that with my R6 recently to get a mount off if it and it took off the cerakote. That didn't happen to you?
 
It didn’t, sorry to hear that.
Did you use heat? I've used it on other cans and not had trouble but I don't know if I've ever used it in the US and had heat with simple green. Maybe it's a different brand name or something, I will have to look. Just a word of caution to others. It may just be that cerakote wasn't the right kind or something???
 
Did you use heat? I've used it on other cans and not had trouble but I don't know if I've ever used it in the US and had heat with simple green. Maybe it's a different brand name or something, I will have to look. Just a word of caution to others. It may just be that cerakote wasn't the right kind or something???
Yeah I used hot water and my ultra sonic has a heater with it also. I’ve never had an issue with simple green and cerakoted parts personally.
 
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TL;DR​

  1. DSMO opens your skin to other chemicals. Like the lead, copper, carbon etc that is in the inky suppressor gunk end product.
  2. Thin nitrile gloves probably suck for DMSO. Goes through fast, gets “red” dangerous ratings by Kimberly Clark (a glove maker)
  3. Buy a pure butyl rubber glove for when handling this stuff.
  4. Chem gloves break down with certain chemicals (even the best glove material for that chemical). Plan on replacing them…but in this case I’m not sure if material breakdown is a factor with DMSO+Butyl Rubber.



Yeah, that guy in the vid used a 10% concentration (found in the comments). Maybe you saw that as well.

Now, just figuring out what 10:1 actually means, as far as mixing…well, I happened upon a Quora thread that has chemists either disagreeing, agreeing but saying it differently (hinging on definitions), or talking about different types of end products.

In our case, it probably doesn’t really matter if it’s 9 drops of distilled + 1 drop of DMSO or 10 drops to 1 drop.

ANYWAY

As I seem to be the Hide’s resident “safety glove man” vis-à-vis suppressors, the best glove seems to be a pure butyl rubber one, which apparently don’t allow DMSO to permeate at all?

Viton/Butyl gloves are not great with DMSO, so do pay attention.

See p.6 of the attached Ansell pdf. Their nitrile glove seem to be ok for this stuff (Dimethyl Sulfoxide or DMSO). I’ve highlighted the relevant row. Perhaps it’s due to the glove’s thickness (they come in a variety of styles, all really thick) or special construction?

Ansell’s nitrile Solvex gloves are way thicker than mechanic’s nitrile gloves with most @ 17mils (.46mm). Some at .56mm.

View attachment 8495545

The Kimberly Clark pdf for incidental exposure for their thin nitrile exam gloves, below, also attached, I think says at a 99.99% concentration, it takes 8min for DMSO to go through a nitrile glove at a 501 pg/cm2/min permeation rate (ASTM F739-99A). Which doesn’t mean a lot to me, but they give the glove a red rating.

View attachment 8495543

So no nitrile for me when handling this stuff, even at 10% concentration.

As someone mentioned (I think), it seems by itself and with nothing else on your skin or in the DMSO solution, it’s sold over the counter as an arthritis balm and is used by veterinarians too.

As someone ALSO mentioned, DMSO affects the skin barrier, allowing whatever else is dissolved or carried in the DMSO cleaner to pass into your bloodstream. With suppressors, lead is one of those somethings. As well as copper and carbon and who knows what else.

Butyl rubber gloves of sufficient thickness are not cheap, but have lasted me a couple years with a lot of acetone use (cleaning cast iron machinery tops). Then they got tacky feeling and were thrown away.

I imagine the tackiness was caused by the slow ingress of the acetone into the rubber, which was expected, of course. Not sure what are the signs of DMSO breaking down the glove.

Most chem gloves aren’t forever, unfortunately. Certain chemicals just break down even the best glove material. However, in this case I’m not sure if material breakdown is a factor with DMSO+Butyl Rubber, given Ansell’s “—“ permeation rating for their butyl rubber glove.

Here are the ones I use at $63 bucks.

878-09 SHOWA 25 mil size Large

Butyl Chemical Resistant Gloves

You can also buy the 14mil version in large for a bit cheaper, currently at $45.

Unfortunately I think, as with the Dip method of suppressor cleaning, we’re going to see a bunch of accidental poisonings with this stuff when cleaning suppressors.

As a rule, men are stupidly careless around chemicals, with stuff in the air, and around loud noises. Anything that doesn’t immediately cause blood to pour forth, basically.

I am not a chemist, but I can read (sorta) lol.

Please let me know if I’ve interpreted the PDFs wrong, the manufacturers are bunk, or if there are other resources I should be looking at.

I believe the permeation is 100% DMSO and it is more than an hour. I don't think 10% is going to go right through mechanic grade nitrile gloves. Caution is warranted for sure though.

10% is 9:1.

Apparently the silencer cleaner works really well with a sonic cleaner. I haven't tried it yet but plan to.
 
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I believe the permeation is 100% DMSO and it is more than an hour. I don't think 10% is going to go right through mechanic grade nitrile gloves. Caution is warranted for sure though.
An hour? The KC chart seems to say you’ve got 8min with their 6 mil nitrile glove in an incidental splash exposure use. Not comforting, not full immersion!

Also note that hot (like 100° in the piston vid) DMSO might permeate even faster.

Context: 6 mil is in the range of “mechanics” grade nitrile glove thickness. I’ve seen other brands that call their nitrile gloves “mechanics grade” on amazon go up to 8 mils.

Other sources like Showa’s most excellent Chemrest site agree with KC on this point. In fact, at 11mils, their non-disposable nitrile glove 717 only gives you between 30-60min of time in either total immersion (TTL) or intermittent exposure (INT).

It costs around $37 on amazon!

Important: Showa doesn’t even feel confident enough to post the degradation time for the 717 like it does for better gloves.

Here’s a link to Showa’s gloves and DMSO tests. It’s really quite fruitful. I should write up a post on how to use it…kinda confusing on a phone but it works.

But I agree on your other points. The DMSO concentration (if that’s the correct word) in the Kimberly Clark (KC) pdf is essentially 100% (99.9%). Their pdf refers to their “thin” nitrile line, which appears to go up to ~6 mil thickness (5.9mil).

Couldn’t find what DMSO percentage that Showa used, but I assume ~100%.

I guess my point is that even though we might be using a lower concentration of DMSO, to me it’s clearly not worth gambling over a mere $60 for a Showa butyl rubber glove that would appear to last as long as their test lasted (8hrs) in full immersion of what I assume is a vat of ~100% DMSO.

I’d dedicate that pair of Showa 878 gloves for suppressor cleaning and use a different pair for heavy-duty acetone use (soaked & I use a respirator) as I do know they break down slowly in that chemical. This despite seemingly being the best for that use.
 
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An hour? The KC chart seems to say you’ve got 8min with their 6 mil nitrile glove in an incidental splash exposure use. Not comforting, not full immersion!

Also note that hot (like 100° in the piston vid) DMSO might permeate even faster.

Context: 6 mil is in the range of “mechanics” grade nitrile glove thickness. I’ve seen other brands that call their nitrile gloves “mechanics grade” on amazon go up to 8 mils.

Other sources like Showa’s most excellent Chemrest site agree with KC on this point. In fact, at 11mils, their non-disposable nitrile glove 717 only gives you between 30-60min of time in either total immersion (TTL) or intermittent exposure (INT).

It costs around $37 on amazon!

Important: Showa doesn’t even feel confident enough to post the degradation time for the 717 like it does for better gloves.

Here’s a link to Showa’s gloves and DMSO tests. It’s really quite fruitful. I should write up a post on how to use it…kinda confusing on a phone but it works.

But I agree on your other points. The DMSO concentration (if that’s the correct word) in the Kimberly Clark (KC) pdf is essentially 100% (99.9%). Their pdf refers to their “thin” nitrile line, which appears to go up to ~6 mil thickness (5.9mil).

Couldn’t find what DMSO percentage that Showa used, but I assume ~100%.

I guess my point is that even though we might be using a lower concentration of DMSO, to me it’s clearly not worth gambling over a mere $60 for a Showa butyl rubber glove that would appear to last as long as their test lasted (8hrs) in full immersion of what I assume is a vat of ~100% DMSO.

I’d dedicate that pair of Showa 878 gloves for suppressor cleaning and use a different pair for heavy-duty acetone use (soaked & I use a respirator) as I do know they break down slowly in that chemical. This despite seemingly being the best for that use.

My nitrile gloves are 8 mil but your point stands. At no point have I put my hands in the solution, knowing what's in it. I'll find some latex gloves to use with it.

I soaked carbon steel in the stuff and it cleaned the carbon off without damaging the steel.
 
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My nitrile gloves are 8 mil but your point stands. At no point have I put my hands in the solution, knowing what's in it. I'll find some latex gloves to use with it.

I soaked carbon steel in the stuff and it cleaned the carbon off without damaging the steel.
I haven’t looked into it much, but I’m not sure latex is great for this application either unless it’s quite thick.

The Ansell glove tested is the 20mil/0.51mm thick Canners 343 (now rebranded Alphatec).

 
You can let it soak for longer but normally do 8 hours, followed by a really hot water rinse and another. The chemical seems to do the most in the first couple hours.
 
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Yea, I understand that it's a no go on Aluminum and carbon steel. The toxicity is an issue but not one I worry much about other than personal exposure. I mean hell, every EV on the road is an ecological nightmare but nobody seems to G. A. S.....

BY all accounts it's very effective....
 
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We will see if some cavitation will move this along

View attachment 8497837

View attachment 8498212
Interested to hear your results. I shoot 100% suppressed so cleaning is something I deal with often. I typically soak in CLR for 8-24 hours then flush with a pressure washer. Depending on how dirty the can is, it can take 2-4 cycles to clean it out. I'd like to find something that can do it on the first or second soak/rinse cycle. I've always thought some sort of flow or movement to the solution would make the cleaning much more efficient, I just haven't tested that theory yet.
 
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I've always thought some sort of flow or movement to the solution would make the cleaning much more efficient, I just haven't tested that theory yet.
 
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Interested to hear your results. I shoot 100% suppressed so cleaning is something I deal with often. I typically soak in CLR for 8-24 hours then flush with a pressure washer. Depending on how dirty the can is, it can take 2-4 cycles to clean it out. I'd like to find something that can do it on the first or second soak/rinse cycle. I've always thought some sort of flow or movement to the solution would make the cleaning much more efficient, I just haven't tested that theory yet.
The airline bubbled all the fluid out even with a loose top on

I put a locking lid on that container after putting more CLR in. Now ima let it ride in vehicles for a few days. Sort of a vibratory shaker for it.

25D5361D-D734-43BF-9A89-5A614920FD87.jpeg
 
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The airline bubbled all the fluid out even with a loose top on

I put a locking lid on that container after putting more CLR in. Now ima let it ride in vehicles for a few days. Sort of a vibratory shaker for it.

View attachment 8498914
Your redneck engineering is impressive... Being from the South and growing up a Poor, that's one thing I enjoy partaking in at times.

For example, I just had to do some myself last night. I needed to send one of my old vintage Dual Rectifier amp heads to Mesa in California for repairs, but instead of sending the whole amp head in a huge box like I normally do, I decided to pull the chassis out and send just that (much smaller and lighter). I had to modify the box to shrink it down to about half the height it was originally, and to makeup gap space inside the box, I then had to rig up some cardboard triangle internal corner stops inside the box to keep it from sliding around in there to avoid damage. Then used up every stitch of bubble wrap I'd collected over the last 2 years or so in the whole house, and still needed more, so I had to start cutting up Aero Solus chassis box foam (thick, & dense...Very good for heavy items) to fill in gaps. By the time I was done, I was pretty proud of my redneck packing job, and it turned out pretty damn solid, too...Barely any wiggle room in there. Almost wish I'd took pictures of it. 😂
 
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Preliminary results seem excellent. Carbon is very soft to the touch. I don’t have time right now but I think the bore tech power washer attachment would get all the carbon out as is now. I think submerging the entire thing helps. Breech side down so k baffles are draining contaminants all the time.

6E633CB5-113C-458E-8048-F435871DF2D2.jpeg
 
Preliminary results seem excellent. Carbon is very soft to the touch. I don’t have time right now but I think the bore tech power washer attachment would get all the carbon out as is now. I think submerging the entire thing helps. Breech side down so k baffles are draining contaminants all the time.

View attachment 8500695

Hot water rinse, and a couple short barrel rounds will get more loosened up.
 
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I didn't seem to get much more out mine with freeze cycles. What really started breaking things up fast was working them over with a soft hammer while r8nsed them with hot water. I took about 3oz out of each of mine with CLR, US with simple green, soft hammer hot water rinse in the sink. It took a handful of cycles. I weighed it after each cycle. I was in one of threads on cleaning or had one of my own. I don't remeber. 20230914_205412.jpg20230910_194859.jpg20230910_192800.jpg20230910_192749.jpg