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 Replies: 8 / Views: 2,286 |
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New Member
United States
45 Posts |
For those wondering about storage safety with PCCB 2x2s, I performed an experiment. I performed the Beilstein test with solid copper pennies, a chef's torch, PCCB 2x2, mylar 2x2, and a 2x2 page. The test works by flame heating a piece of copper, putting it on plastic, and again heating the copper with plastic residue. If the plastic has plasticizers, the flame will turn green. The PCCB plastic showed no color changes in the flame just like the mylar showed no color changes. The page made the flame turn goblin green. My verdict is PCCBs "should be safe" for long term storage and there's no need to throw them away.
The only catch with PCCBs is durability. A Morgan tore apart the 40mm with ease. I put the same Morgan in a mylar 40mm 2x2(which are pretty thin too) but no tears. I did other fit tests and PCCBs are fine for halves and below.
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Moderator
 United States
188213 Posts |
Very interesting! Thank you for sharing your results.  |
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Valued Member
United States
191 Posts |
Thanks for doing the tests and informing us.
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Pillar of the Community
Australia
9400 Posts |
Good to know, I've been using the PCCB 2x2s for awhile now.
I use to use Air-Tites 2x2s from the U.S., but postage is now too expensive.
I have noticed a difference is quality even within the PCCB 2x2s though.
Most feel like Mylar should, but sometimes I get the odd one that feels rubbery.
Anyone else notice this?
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New Member
 United States
45 Posts |
I noticed the rubberiness and can tell what's PCCB by feel.
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Valued Member
United States
94 Posts |
How did you know the "pcb" was really not Mylar ? It's unclear the process you used for your test. The test is to heat a piece of copper to allow it to oxidize. Then to heat the now oxidized coper and touch the samples looking for a green flame. https://www.chemeurope.com/en/encyc...in_test.html |
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New Member
United States
45 Posts |
Quote:How did you know the "pcb" was really not Mylar ? It's unclear the process you used for your test. The test is to heat a piece of copper to allow it to oxidize. Then to heat the now oxidized coper and touch the samples looking for a green flame. https://www.chemeurope.com/en/encyc...in_test.html PCCBs don't have the stiffness of mylar which is concerning. I closely did all that but with three solid copper Lincolns and a chef's torch. Each hot penny was exposed to a PCCB, a mylar 2x2, and a plasticized 2x2 page. The page penny had the green flame while the other two had a similar flame of blues and yellows. I don't think PCCBs are mylar but the test shows PCCBs "should be safe" for long term storage. I used quotations because I don't want to give the impression it's guaranteed. |
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Pillar of the Community
Canada
2781 Posts |
I did a similar test with their hard slabs, same "negative" result.
I still didn't use them even though I really like the design and white inserts.
Honestly I don't how much it would be for a proper lab test, but guessing for pennies per CCF member just about every brand on the market could be tested.
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New Member
United States
45 Posts |
The PCCB slabs look built like tanks but they are too expensive for me. I use Boen assorted capsules for quantity and they do get the job done even though I'd like some scratch resistance.
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Replies: 8 / Views: 2,286 |
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Posted 07/18/2022 09:47 am
