Gypsum backer board
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United States of America Patent
Stats
-
Aug 14, 1990
Grant Date -
N/A
app pub date -
Feb 13, 1989
filing date -
Feb 13, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A backer board for use as a base to which ceramic tile is bonded for a bathtub or shower area, in which the board is made by forming a gypsum core board with fiber glass laminated composite facings, which include an inner fiber glass scrim, an outer fiber glass nonwoven matte and an acrylic film, which film is formed of an acrylic latex of a class commonly employed as an ingredient in Portland cement mortar for applying ceramic tile.
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Cited Art Landscape
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