Treatment for cement composite articles

A cement fiberboard substrate is treated on at least one edge of the substrate with an aqueous solution containing at least one phosphorus acid or salt of a phosphorus acid. The treated edge is overcoated with a sealer, primer or topcoat. The resulting prefinished fiber cement siding product has imp...

Full description

Saved in:
Bibliographic Details
Main Authors Vetter, Glen O, Herfindal, Larry L, Mittelsteadt, John W, Turner, Heidi M, Ubel, Andrew, Evanson, Kevin W
Format Patent
LanguageEnglish
Published 19.06.2012
Online AccessGet full text

Cover

More Information
Summary:A cement fiberboard substrate is treated on at least one edge of the substrate with an aqueous solution containing at least one phosphorus acid or salt of a phosphorus acid. The treated edge is overcoated with a sealer, primer or topcoat. The resulting prefinished fiber cement siding product has improved coating adhesion, especially near burnished regions and near edges and corners proximate the burnished regions. A phosphorus acid or salt of a phosphorus acid also may be added to the sealer to provide further improvement in coating adhesion.