Log in or Sign up
Coin Talk
Home
Forums
>
Coin Forums
>
Coin Chat
>
Plastic Coin Tubes
>
Reply to Thread
Message:
<p>[QUOTE="Conder101, post: 862258, member: 66"]The early clear plastic tubes from the 50's and 60's over time do outgas something and they do shrink. The cooling method will work but your typical home freezer does not get cold enough to work or work well. (If you can find a commercial freezer that gets down to 20 to 40 below zero that should work.) The simplest way is if you have access to someone who works with or has access to liquid nitrogen. Take a bowl of liquid nitrogen and simply place the roll in it. (Using tongs) The tube will literally break up into small pieces because the cold makes it brittle and it tries to contract much faster than the mass of metal can cool and contract. If it doesn't break up completely remove the tube and tap it lightly with a rubber mallet and it should fall apart. (Liquid nitrogen is often available from welding suppl houses. It's neat stuff but dangerous if you don't know what you are doing.)[/QUOTE]</p><p><br /></p>
[QUOTE="Conder101, post: 862258, member: 66"]The early clear plastic tubes from the 50's and 60's over time do outgas something and they do shrink. The cooling method will work but your typical home freezer does not get cold enough to work or work well. (If you can find a commercial freezer that gets down to 20 to 40 below zero that should work.) The simplest way is if you have access to someone who works with or has access to liquid nitrogen. Take a bowl of liquid nitrogen and simply place the roll in it. (Using tongs) The tube will literally break up into small pieces because the cold makes it brittle and it tries to contract much faster than the mass of metal can cool and contract. If it doesn't break up completely remove the tube and tap it lightly with a rubber mallet and it should fall apart. (Liquid nitrogen is often available from welding suppl houses. It's neat stuff but dangerous if you don't know what you are doing.)[/QUOTE]
Your name or email address:
Do you already have an account?
No, create an account now.
Yes, my password is:
Forgot your password?
Stay logged in
Coin Talk
Home
Forums
>
Coin Forums
>
Coin Chat
>
Plastic Coin Tubes
>
Home
Home
Quick Links
Search Forums
Recent Activity
Recent Posts
Forums
Forums
Quick Links
Search Forums
Recent Posts
Competitions
Competitions
Quick Links
Competition Index
Rules, Terms & Conditions
Gallery
Gallery
Quick Links
Search Media
New Media
Showcase
Showcase
Quick Links
Search Items
Most Active Members
New Items
Directory
Directory
Quick Links
Directory Home
New Listings
Members
Members
Quick Links
Notable Members
Current Visitors
Recent Activity
New Profile Posts
Sponsors
Menu
Search
Search titles only
Posted by Member:
Separate names with a comma.
Newer Than:
Search this thread only
Search this forum only
Display results as threads
Useful Searches
Recent Posts
More...