Solid Color Deck Stains: Trends, Substrates, and Formulation Study

摘要

The changing decking market offers new products to consumers and new challenges to coatings manufacturers. The voluntary phase out of chromated copper arsenate (CCA)-treated wood for residential applications at the end of 2003 opened up the decking market to new wood treatments as well as composite decking materials usually composed of wood fibers and recycled plastics. Solid color stains which are used to coat these substrates need good adhesion on weathered and unweathered composite substrates, abrasion resistance, stainblocking, and exterior durability. In addition, government regulations are forcing solid color stains to lower volatile organic compound (VOC) levels and many stains are now formulated from bases with high loadings of universal colorant. Background information on new decking substrates will be presented along with data from an evaluation of acrylic binders in VOC compliant solid color stain formulations for these substrates.