The three pictures below represent spraying high density foam across the boundary between the grain bin and the concrete.  First we sweep/blow off any residual dirt/trash. then we spray. Sometime after that, the foam gets covered to keep the sun's ultraviolet rays from attacking the foam.  It turns to an orange color.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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    Then next four photos show the foam being applied to a grain bin.

 

 

     Clean off the ledge, then spray a coat of foam to get into the cracks.

 

 

 

 

 

Watch to see how far material expands,

 

 

 

 

 

 

 

     Spray 2nd pass and final coat........

 

 

 

 

 

 

 

 

   Inspect work and measure depth of material.

 

 

 

 

 

 

     ...........when it comes to sealing ANYTHING, there is no better product than high density foam.