The paint industrys reliance on synthetic petroleum-based binders raises environmental concerns due to volatile organic compound (VOC) emissions and non-renewable resource depletion. This study investigates the feasibility of using Acacia senegal (Gum Arabic), a natural renewable binder, either alone or in combination with polyvinyl acetate (PVAc) for satin house paint production. Three paint formulations were prepared with varying binder compositions: 100% PVAc (Sample A), 100% Gum Arabic (Sample B), and 50% PVAc + 50% Gum Arabic (Sample C). Physicochemical properties including pH, drying time, coverage, and viscosity were evaluated. Results showed that all samples exhibited pH values slightly above the Standards Organization of Nigeria (SON) range (8.63-8.75 vs. 7.0-8.5). Drying time varied significantly: Sample B dried fastest (2 hours), followed by Sample C (2 hours 45 minutes), and Sample A slowest (3 hours 45 minutes). All samples achieved equivalent coverage (0.0136 msup2/sup), though brightness quality differed (Sample A: excellent, Sample B: dull, Sample C: good). The hybrid formulation (Sample C) demonstrated promising preliminary characteristics, suggesting that partial substitution of synthetic PVAc with natural Gum Arabic warrants further investigation for satin paint applications. While basic physicochemical properties were characterized, comprehensive performance testing including adhesion, scrub resistance, and quantitative gloss measurement is required to fully validate commercial viability. This research contributes to sustainable paint technology by demonstrating the viability of bio-based binders in decorative coatings.
Aiyejinna et al. (Wed,) studied this question.