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Packets of Dessicant - Useful? Downsides?

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  • Member since
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  • From: Portland, Oregon
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Packets of Dessicant - Useful? Downsides?
Posted by Attuvian on Thursday, April 2, 2020 12:06 PM

We've all come across those little packets or plastic cylinders of dessicant that are included in the packaging of all sorts of items.  I'm generally in the habit of setting them aside for other purposes.

Shift now to the storage of your rolling stock, locos and other items.  We've all come across old Blue Box bar weights, motor clips, wheel sets (cars and locos), and other things that look like they'd been warehoused for a few winters in Oregon.  And this certainly applies to all manufacturers.  We can certainly expect the threat of rust when storing our gear in a garage or damp basement.  But I suspect that even storage in a house could result in the "Red Surprise" in certain circumstances.

If I recall, I may have opened some MRR packaging to find these little packets inside.  But then, my memory is slowing transitioning to an altered state. Wink  How many of you make an effort when storing your goodies to use these dessicant, either in the individual car/loco box or in the larger storage crate?  And, where storing locos, do dessicants have any negative effect on either lubricants (it's a given that they are not water-based) or other components?

John

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Posted by Tinplate Toddler on Thursday, April 2, 2020 12:18 PM

When I discovered my brass Tenwheeler after more than 40 years of storage, there was a little bag of that hygroscopic stuff in the box. It didn´t do any harm.

I have never heard of any water-based lubricant.

Happy times!

Ulrich (aka The Tin Man)

"You´re never too old for a happy childhood!"

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Posted by BigDaddy on Thursday, April 2, 2020 12:42 PM

According to the Internet (so it must be true) those packets last 2-5 years and can be reactivated by heating.   From my distant chemistry courses, SiO2 ought to be pretty unreactive.

Henry

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Posted by gmpullman on Thursday, April 2, 2020 12:53 PM

I like to keep a few in my drawers. NO not those drawers — the drawers where I keep my files. For whatever reason, it seems like files are prone to easily rusting and nothing ruins an expensive file quicker than rust.

I rotate the packets and place newer ones in there when I get them.

Good Luck, Ed

 

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Posted by richhotrain on Thursday, April 2, 2020 1:09 PM

Google 'are dessicant packets reusable' to learn all about the "recharging" of dessicant packets. They must be dried out and stored properly prior to reuse, and they do have a useful life of 12 or less months.

Rich

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Posted by mbinsewi on Thursday, April 2, 2020 3:32 PM

I never knew what they are for, or that they had a name.  So they stop rust? Confused

Mike.

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Posted by maxman on Thursday, April 2, 2020 3:38 PM

mbinsewi
So they stop rust?

No, they try to keep the air dry.

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Posted by richhotrain on Thursday, April 2, 2020 4:19 PM

maxman
 
mbinsewi
So they stop rust? 

No, they try to keep the air dry. 

Correct. Since the dessicant pulls moisture out of the air, if you plan to reuse it, you have to let it dry out, or "recharge", first or else it will not work the second time around.

Rich

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Posted by azrail on Thursday, April 2, 2020 5:44 PM

Just do not eat them

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Posted by riogrande5761 on Thursday, April 2, 2020 6:02 PM

gmpullman
I like to keep a few in my drawers. NO not those drawers

 

Whoa.... keep that to yourself!  Zip it!

 

The name kinda explains what they are for ... and for those who never took science class, google is your friend Wink

I'd guess you can "recharge them" or uncharge them, by putting them in an oven at low temperature for an hour or two to drive off any moisture they have absorbed.

Rio Grande.  The Action Road  - Focus 1977-1983

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Posted by SeeYou190 on Friday, April 3, 2020 2:26 AM

I have bought them on ebay for pretty-close-to-dirt prices.

The only thing I use them for is the drawers where I store my decals.

-Kevin

Living the dream.

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Posted by richhotrain on Friday, April 3, 2020 4:20 AM

SeeYou190

I have bought them on ebay for pretty-close-to-dirt prices.

You can make your own dessicant with materials found around the house like salt, baking soda, etc.  A lot of common household materials absorb moisture quite easily.

Rich

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Posted by mbinsewi on Friday, April 3, 2020 7:17 AM

riogrande5761
The name kinda explains what they are for ... and for those who never took science class, goodle is your friend 

Truly a "senior moment" Dunce  Smile, Wink & Grin  Working all day in sunshine, the first in about 4 months??   The connection wasn't made until I clicked on "Submit Your Reply".  Indifferent

I remember my wife dropping her phone in the minnow bucket, while fishing, so we buried it in a baggy of rice.  

Mike.

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Posted by riogrande5761 on Friday, April 3, 2020 7:27 AM

typo fixed.  I don't touch type as well on laptop keyboards.

Rio Grande.  The Action Road  - Focus 1977-1983

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Posted by richhotrain on Friday, April 3, 2020 7:33 AM

mbinsewi
 

I remember my wife dropping her phone in the minnow bucket, while fishing, so we buried it in a baggy of rice.   

I once did the same thing with my phone but misunderstood what I Goodled when I buried it in a baggy of ricin. The phone died immediately.Smile, Wink & Grin

Rich

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Posted by -E-C-Mills on Friday, April 3, 2020 8:32 PM

You can regenerate them in the oven.  The ones in paper can handle a couple hundred degrees F (80-100C).  The ones in the plastic barrels might melt.  I regen mine in the microwave.  Microwaves will heat the water in them and drive it out.  Just a couple minutes on high.

One thing I use mine for is in a mini dessicator out of an old pill bottle.  I store my CA this way and it lasts for years.  Much less likely to clog.  CA is activated by moisture in the air.

I have yet to do this but was thinking of cutting the face from the barrels, painting rust and putting in a junk pile somewhere.  Nice little holes and detail.

 

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Posted by Anonymous on Saturday, April 4, 2020 10:54 PM

maxman
 
mbinsewi
So they stop rust?

 

No, they try to keep the air dry.

 

Yep I used to work for a TV manufacturer and when we were boxing up picture tubes for shipment to other plants overseas we always put a couple packs of dessicant in with them. The kind we used is made out of silica gel too. The packs were about the size of a beanbag.

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Posted by wjstix on Sunday, April 5, 2020 1:16 AM

Bachmann for many years included (and maybe still do?) a small clear plastic bag of plastic scale coal chunks with their steam engine models. The chunks were meant to glued wherever you thought appropriate, like in the cab or coal deck or to change the look of the coal pile. From what I understand, many people just threw them away, thinking it was a dessicant.

Stix
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Posted by joe323 on Sunday, April 5, 2020 8:24 AM

Whatever you do keep them away from Pets it could kill them if ingested.

Joe Staten Island West 

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