Will Intercept Sheild prevent milkspots on SAE's?

Comments

• TorinoCobra71 Posts: 8,092 ✭✭✭

  October 13, 2007 11:16PM

  This is one tough question to answer/give an opinion on! I gave up on ASE's after milkspotting started to get to some of mine. I tried I.S. at the end and they SEEMED to work, but who knows over a long period of time. I only did it for about a year with I.S. and saw no spotting, But who is to say whats gonna happen after 2, 5 or 10 years. You would think that the US Mint would have this stupid problem solved by now. This is why I QUIT collecting ASE's........Milk Spotting SUCKS!
  
  TC71
  
  

  

  0
• BAJJERFAN Posts: 31,612 ✭✭✭✭✭

  October 13, 2007 11:25PM

  Your intuition on this point is correct. Intercept Shield cannot prevent contamination that is already present; the term Intercept implies capturing something BEFORE it it does its dirty work and not after. As a rule copper is more reactive than silver is with most common contaminants with sulfur being the notable exception. The basic concept of Intercept Shield is a thin film impregated with reactive copper particles much like using the pre-1981 pure copper pennies to guard against oxidative degradation.

  theknowitalltroll;

  0
• FLBuffaloHunter Posts: 3,127

  October 14, 2007 12:20AM

  No, I had ASE's spot after 3 months that were stored in a Intercept double protection box. BAJJERFAN is correct milk spots are aggravated by contamination of the coin surface. Intercept is designed to protect against corrosive atmospheric gases.

  Never teach a pig to sing. You'll waste your time and annoy the pig
  
  

  0
• keets Posts: 25,351 ✭✭✭✭✭

  October 14, 2007 12:50AM

  it's important to remember that Milkspots aren't something that ocurrs after coins leave the Mint. in truth, a Milkspot is most accurately described as a strike-through of liquid remaining on the planchet surface from improper/incomplete rinsing. the spotting you describe sounds to me more the result of post-strike contamination which then takes time to show up as a discolored area. remember, since the ASE's are almost pure silver they tend to be more susceptible to things like this.

  0
• jmski52 Posts: 23,951 ✭✭✭✭✭

  October 14, 2007 1:48AM

  a Milkspot is most accurately described as a strike-through of liquid remaining on the planchet surface from improper/incomplete rinsing
  
  I hadn't thought of it like this before. Thanks Keets. A thin-film strike-through. Interesting.

  Q: Are You Printing Money? Bernanke: Not Literally
  
  I knew it would happen.

  0
• BAJJERFAN Posts: 31,612 ✭✭✭✭✭

  October 14, 2007 2:44AM

  I think its from Mint employees peeing on the coins after they are struck.

  theknowitalltroll;

  0