So no kind of available plastic is a safe choice?  And Tyvek is a very 
interesting material.  Slick, strong and very smooth.  But how do you make a 
sleeve from it?
----- Original Message ----- 
From: "Mike Richter" <[log in to unmask]>
To: <[log in to unmask]>


>
> Apart from the issue of cost, I'd recommend Tyvek. Short of that, paper.
>
> Mike