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Subject:
Aluminum can linings
Category: Science Asked by: zundel-ga List Price: $4.50 |
Posted:
08 Feb 2003 10:59 PST
Expires: 10 Mar 2003 10:59 PST Question ID: 158837 |
What is used (if any)to "film" or "cover" the inside of aluminum cans so you dont get that metally taste in your mouth whe you take a drink? |
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Subject:
Re: Aluminum can linings
Answered By: websearcher-ga on 08 Feb 2003 11:33 PST Rated: ![]() |
Hi zundel: After a lot of searching, the best description of this process that I found was at: The Aluminum Can Manufacturing Process URL: http://www.cancentral.com/canc/nontext/manuf.htm Quote: "Following application and curing of the exterior label (lithography), the can is conveyed to a bank of spray machines that spray the inside with an epoxy-based organic protective coating. The inside coating is also cured by forced hot air. The coating prevents the beverage from contacting or reacting with the metal in the can body even though aluminum is a relatively nonreactive material. Both the exterior overvarnish and the interior protective coating are made with water-based materials to prevent harm to the environment." I hope this helps! Let me know if you need any clarification. websearcher-ga Search Strategy (on Google): inside coating "aluminum cans" coating "aluminum cans" cans aluminum epoxy-based organic protective coating "aluminum cans are made" "how are aluminum cans made" |
zundel-ga
rated this answer:![]() Awsome research, appreciate it! |
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Subject:
Re: Aluminum can linings
From: taoshan-ga on 12 Feb 2003 09:32 PST |
Contrary to the information given, Aluminium is relatively highly reactive, being in a similar group of metals to magnesium. In fact, it is this high reactivity that causes a very rapid reaction with any available oxygen to form a protective coating of Al2o3 (Aluminium Oxide) which gives aluminium its usable qualities in areas such as cookware. Consider Thermite - a mixture of powdered Aluminium and Iron Oxide: the reaction of these two chemiclas, when ignited using magnesium, causes a heat high enough to melt steel. |
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