Valspar Sourcing, Inc.

John William Mittelsteadt

Glen Otto Vetter

T Howard Killilea

Kevin W Evanson

Larry B Brandenburger

Carl Lewis Cavallin

Andrew Ubel

Archie W Garner

Wylie H Wetzel

Stephen M Carlson

Larry Lloyd Herfindal

Shane Wesley Carter

Heidi M Turner

A coated fiber cement article in the form of an unattached fiber cement board substrate having a first major surface at least a portion of which is covered with a crush resistant final topcoat composition comprising a multistage latex polymer, and a method for making a crush resistant coated fiber cement article by coating a fiber cement board substrate with such a composition and stacking the coated boards.

Coated fiber cement article with crush resistant latex topcoat

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.

Treatment for cement composite articles

A coated article and method of employing a water-based coating composition on a fiber cement composite substrate is provided. The coating composition contains: an epoxy resin, a crosslinker having epoxide-reactive functional groups, a latex polymer distinct from the epoxy resin, and water.

Coating system for cement composite articles

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Lakeville, MN, United States of America

John William Mittelsteadt