Darryl Keil Last Activity 2026-01-12 8:29 AM
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Barry

 
Subject : How much pressure is 22" hg ?
Posted : 2000-06-04 7:16 PM
Post #30596
I was just wondering how many pounds of pressure per square foot (or inch) is created by a vacuum that is pulling 22" of Hg?



 
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Darryl Keil

 
Subject : How much pressure is 22
Posted : 2000-06-06 12:21 PM
Post #30603 - In reply to #30596
Dear Barry,Every inch of mercury is about .48 of a pound which would amount to about ten and a half pounds per square inch. Remember that vacuum veneering is not just using psi to achieve a good glue bond. Vacuum draws the air out of the cell structure and actually pulls the glue in. The two forces combined give you a good bond. 22HG is acceptable vacuum for veneering.SincerelyDarryl Keil: I was just wondering how many pounds of pressure per square foot (or : inch) is created by a vacuum that is pulling 22" of Hg?
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