Azotic wrote:

"Harold and Susan Vordos" wrote in message
.. .

"Too_Many_Tools" wrote in message
...
snip-----

Think about it...how do we know that the current sheetrock doesn't
have the same problem?

You don't. It's common practice to harvest gypsum from bag houses from
coal fired power plants, even here in the good ol' USA. It is used by
the drywall industry to make wallboard. There are other sources, much of
it occurring in nature.

One thing to consider---sulfuric acid does NOT dissolve copper. It is
commonly used as a pickle for copper, attacking *only* copper oxide. There
should be no free sulfur compounds present to create sulfuric acid---it is
bound with the limestone that is used to neutralize sulfur dioxide, making
gypsum in the process.

Harold

You forget this drywall came from china, known for thier high standards of
quality and unique cost cutting solutions. Seems the chinese have found
a way make low cost gypsum by eliminating all those unnessary and costly
steps others use. As i recall the chinese also like to add some secrete

HAHAHA. well worded.