Method for extending the useful life of mold type tooling
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United States of America Patent
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Issued Date -
Jan 10, 2008
app pub date -
May 1, 2007
filing date -
May 1, 2006
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Abandoned
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Abstract
A method for enhancing the vacuum integrity and extending the useful life of a mold-type forming tool operable with negative pressure, the method comprising: (a) preparing a surface of the tool to receive a sealing coating thereon; (b) optionally applying a primer material to the surface; (c) obtaining a sealing coating having a formulation comprising a urea and polyurethane composition; (d) applying the sealing coating to the surface, over the primer material, prior to the primer material drying, the primer material interacting with and facilitating a bond of the sealing coating to the surface; and (e) curing the sealing coating to effectuate the bond between the sealing coating and the surface, and to seal the surface.
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