The effect of surface roughness on the performance of finishes. Part 1. Roughness characterization and stain performance.

In this study, the relationship between the morphological structure of the outside wood layer expressed as surface roughness, and the performance of coatings was analyzed. The surface roughness of five roughness categories (processed by planing, sanding, and bandsawing) on three wood substrates (vertical- and flat-grained western redcedar and flat-grained southern yellow pine) was determined by stylus tracer measurements. Several surface parameters were calculated to characterize the five roughness grades. Surface sanding proved to be an advantageous processing step prior to paint application. Sanded surfaces needed a relatively low quantity of paint for coverage and showed best paint performances even on low-grade wood.     «

In this study, the relationship between the morphological structure of the outside wood layer expressed as surface roughness, and the performance of coatings was analyzed. The surface roughness of five roughness categories (processed by planing, sanding, and bandsawing) on three wood substrates (vertical- and flat-grained western redcedar and flat-grained southern yellow pine) was determined by stylus tracer measurements. Several surface parameters were calculated to characterize the five...     »