Finishing performance ofAcacia mangiumwood surface-treated with methanol

Evaluation of the effects of 8% methanol (MeOH) pretreatment on the finishing performance ofAcacia mangiumwood was carried out using different coating systems, i.e., nitrocellulose (NC), acid catalysed (AC) and polyurethane (PU). The coated surfaces were tested for adhesion test-cross cut, scratch resistance test, abrasion test, impact resistance test, surface roughness, and gloss measurements test according to the relevant standard. The results have shown thatA. mangiumwood surface treated with 8% methanol resulted in a superior finished surface compared to untreated panels except gloss. Among coating systems, AC and PU appear to be more compatible with MeOH than with NC. Applying 8% of methanol toA. mangiumsurface before coating, application of AC or PU improved the quality of finishedA. mangiumwood and meeting the minimum requirements outlined in the standards.