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12GAUGE
01-05-2011, 01:59 PM
AoA Everybody

A year ago I was sorta obsessed (among other things ;)) with the idea of "Long Term Storage". I wanted to know how I can store stuff without the risk of corrosion. In the search for a solution, I found out that normal preservatives such as gun oils and stuff are pretty much useless for extended durations. I found out that that sealing a bag air-tight and sucking out all the air to create a vacuum is not possible at "home-made" level. I found out that preservatives that do work for extended durations are a PAIN to get rid of once they are no longer required. I found out that ordinary polyethylene bags are not moisture proof as some of us may think, we need a minimum thickness of 200 microns to do that and that thickness is quiet significant. I found out that sealing a bag means you are essentially trapping moisture inside which will eventually start corrosion.

then some thing struck me, VCI (http://www.midwayusa.com/viewProduct/default.aspx?productNumber=154282). Volatile Corrosion Inhibitor (http://www.midwayusa.com/viewProduct/default.aspx?productNumber=154282) to be precise. if this thing works as claimed then we can store stuff in extreme conditions and don't have to worry about a thing. all we need to do is to seal VCI inside a polyethylene bag thick enough to ensure zero transmission along with the stuff we need to store away for extended and extreme storage conditions.

what is VCI (http://www.midwayusa.com/viewProduct/default.aspx?productNumber=154282): Volatile Corrosion Inhibitors (VCIs) (sometimes referred to as vapor corrosion inhibitors) provide excellent protection for metal surfaces and can prevent corrosion for many years. VCIs are chemicals used directly on the product that needs to be protected. They are designed to create an invisible barrier, keeping moisture at bay. VCI molecules attach themselves to metal surfaces to form an invisible, thin film only a few molecules thick.

So, to test that I claim, I gathered a few things of metal, Stainless steel and Mild steel nails, some blued parts, some browned parts, one parkerized guide rod, one chrome plated nail and some unfired ammo (for shiny brass). each and every piece was chemically degreased to ensure that they were free of any preservative of any sort. they were handled using latex gloves to further ensure that no human residue was left on there. I wanted to give VCI the best level playing field that I could possibly provide.

One Year Extreme Conditions and Extended Duration Test:

http://i998.photobucket.com/albums/af103/12gauge-pakguns/Long%20term%20Storage%20Test/Dsc00636.jpg

http://i998.photobucket.com/albums/af103/12gauge-pakguns/Long%20term%20Storage%20Test/Dsc00637.jpg

http://i998.photobucket.com/albums/af103/12gauge-pakguns/Long%20term%20Storage%20Test/Dsc00639.jpg

http://i998.photobucket.com/albums/af103/12gauge-pakguns/Long%20term%20Storage%20Test/Dsc00640.jpg

http://i998.photobucket.com/albums/af103/12gauge-pakguns/Long%20term%20Storage%20Test/Dsc00641.jpg

http://i998.photobucket.com/albums/af103/12gauge-pakguns/Long%20term%20Storage%20Test/Dsc00642.jpg

http://i998.photobucket.com/albums/af103/12gauge-pakguns/Long%20term%20Storage%20Test/Dsc00643.jpg

http://i998.photobucket.com/albums/af103/12gauge-pakguns/Long%20term%20Storage%20Test/Dsc00644.jpg

http://i998.photobucket.com/albums/af103/12gauge-pakguns/Long%20term%20Storage%20Test/Dsc00645.jpg

http://i998.photobucket.com/albums/af103/12gauge-pakguns/Long%20term%20Storage%20Test/Dsc00646.jpg

http://i998.photobucket.com/albums/af103/12gauge-pakguns/Long%20term%20Storage%20Test/Dsc00647.jpg

http://i998.photobucket.com/albums/af103/12gauge-pakguns/Long%20term%20Storage%20Test/Dsc00648.jpg

http://i998.photobucket.com/albums/af103/12gauge-pakguns/Long%20term%20Storage%20Test/Dsc00649.jpg

After one year, everything came out shinny just like the first day. not even a single spot of rust anywhere, no discoloration and no signs of corrosion. VCI worked beautifully and just as claimed. the stuff came out ready to use and not requiring any post cleaning as with regular long term preservatives that require complete dismantling and multiple cleaning sessions to get rid of all old preservative which normally turns into a hard coating.

Directions:

Get a few VCI (http://www.midwayusa.com/viewProduct/default.aspx?productNumber=154282) time release tabs (or chips) and heat seal them alongside the stuff you want to store away, making sure that you seal it good and leave no skin oil/residue on the stuff while handling. one more thing, you do need a polyethylene bag of 200 microns thickness which I was fortunate enough to get from our very own Denovo87 Sb.

I know some of you might be wondering why a lawn was chosen for such a test. well.... first it probably provides the most extreme environment that I can possibly throw at VCI. secondly, only by pushing through the limits we truly establish the limits. :)

Think of it as this way: this test came out great in an extreme environment of a lawn even after storing for a full one year. Imagine how long VCI can protect your stuff if stored and kept away from sunlight, humidity and extremes of temperatures. Imagine being able to store your stuff and use it right away when needed without requiring any post-storage cleaning.

Regards.

Moeen
01-05-2011, 02:41 PM
Salam All,
@12Gauge - AHAA! So thats where you hide your stuff! Very well done and inquiring minds WOULD like the inside info as to how you managed this deed. Well done. +++1.

Rotorcrafts
01-05-2011, 03:07 PM
LoLs, :D

Thats a very nice educational effort. :)

sayyedain
01-05-2011, 03:31 PM
very nice sir 12 Gauge

HussainAli
02-05-2011, 10:40 AM
Dear 12Gauge Bro, Very nice & Informative for us........ well done !!!!!!

Regards

Madham
02-05-2011, 11:08 AM
very informative and i must say very patient of you to wait for this test to complete. bravo. please mention the avilablity and price of VCI as a lot of us including me have not used it.

Mohammad
02-05-2011, 11:22 AM
Amazing. @12GUAGE could you please guide us to the place or shop where 200 micron thickness polyethylene bag is available. Secondly what is the commercial product name for VCI and where is it available? Are they available in the gun shops? Thirdly when the gun is coated with VCI, is there any need of putting selica gel in the bag? Did you vaccum seal it or just heat sealed it?

12GAUGE
02-05-2011, 12:54 PM
Amazing. @12GUAGE could you please guide us to the place or shop where 200 micron thickness polyethylene bag is available. Secondly what is the commercial product name for VCI and where is it available? Are they available in the gun shops? Thirdly when the gun is coated with VCI, is there any need of putting selica gel in the bag? Did you vaccum seal it or just heat sealed it?

Bro, I was fortunate to have a friend in Sialkot (Denovo87) who went through all the trouble of making these polyethylene bags for me. another friend of mine who bought these chips (or tabs) from USA (for his rust protection of his tool chest) gave me a couple for this test. you may search on the Internet. there are many sites which sell this stuff directly to international customers. VCI is available in form of chips, in form of paper and in form of small pills.

all you need is a VCI emitter chip/paper/pill. just heat seal your stuff in a PE bag of 200 microns and place any VCI emitting medium inside the bag before sealing. no need for vacuum or anything like that. not need for coating your stuff with a long term preservative as well.

Regards.

Mohammad
02-05-2011, 03:32 PM
brother 12 gauge any specific brands for VCI or any VCI could work?

12GAUGE
02-05-2011, 09:13 PM
Bro This is the one that i've used:

http://www.midwayusa.com/viewProduct/default.aspx?productNumber=154282

I'm sure any quality VCI product would do just as fine.

Regards.

Denovo87
02-05-2011, 09:40 PM
Thanks 12 g bro for another (scientifically proved) solution for the members always looking for better, safer n effective arms n ammo storage ideas.
And believe me this test of your's saved one of our dearest brothers from moving his stock up n down the hill, now all his goodies can rest at a permanent place without fear of seasonal migration ;)

AK47
03-05-2011, 11:39 PM
Thanks 12 g bro for another (scientifically proved) solution for the members always looking for better, safer n effective arms n ammo storage ideas.
And believe me this test of your's saved one of our dearest brothers from moving his stock up n down the hill, now all his goodies can rest at a permanent place without fear of seasonal migration ;)

@Den.............Lolz! Yes, you're absolutely right, this will spare some of us having to use our cars like a "KABULI KOTA", moving up and down the hills with all that load, no doubts! I'm gonna bring down my things as soon as anyone here manages me a dozen or two of these pills/tablets/ of VCI, one excellent effort by 12G bro, as usual, very practical, very easy and with excellent results and shiny sparkling, brass, absolutely great!

Thanks 12G bro for another useful experiment, I really had over-looked this thread since days.

Now, may we assume that VCI is already available here and used by some industrial/retail units, any likeliness??

@Moeen.........Next time you're around with 12G bro, be on the watch-out for strange lying BRICKS in his lawn, there may be another "dog" or two buried away also, lolzzzzzzz!


Regards.

Aquarius
03-05-2011, 11:47 PM
Great input 12GAUGE brother.. thanks for sharing such information & education.

Ka_Khan
03-05-2011, 11:54 PM
Excellent 12 Guage brother yet another experiment you did for all of us.I might say you have a beautiful 'money plant' which shows your gardening skills :)
Same question as asked by many.Any source in Pakistan to get this VCI?

Moeen
04-05-2011, 12:04 AM
Salam All,
@AK47 - I say we make a visit to 12Gauge bhai's house this week... are you up to it? Let me know.

Mohammad
04-05-2011, 09:21 AM
guys the question that needs to be addressed is "Where the heck are we going to find 200 micron thickness Polyethylene bag?"