XPost: alt.home.repair   
   From: xxx@yyy.zzz   
      
   On 2022-02-03 10:36:26 +0000, Heron said:   
      
   >> What is that whiteish substance, chemically, anyway?   
   >   
   > Lead II sulfate.   
      
   Sometimes it's a yellow crust from sulfating salt used on wintry roads.   
   [https://www.stileapac.com/why-is-my-car-battery-crusty]   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)