Evaluation of the quality of surface finish of messassa wood for three types of varnishes

Abstract

The aim of this study was to evaluate the performance of the messassa wood Brachystegia spiciformis and Julbernardia globiflora for three types of finishing products for use in the furniture and frames in- dustries. Coating performance was assessed by adhesion strength, impact deformation resistance, abra- siveness, gloss and overall color variation tests based on technical standards. Copal painting application was higher for gloss, adhesion and lower abrasiveness compared to water based and polyurethane. The impact deformation was higher for polyurethane than water-based and copal for both species. The dark- ening of wood for Brachystegia spiciformis and a slight lightening of wood by Julbernardia globiflora characterize the overall color variation after application of the coating products. According to these re- sults, the varnishes can be used to add value to the messassa wood as a finish in solid wood furniture and frames