Analisis Pengaruh Variasi Campuran Solvent-Vernis Dan Suhu Pengeringan Terhadap Kerekatan Dan Kekilapan Cat Pada Material Plat Baja St 41

Primadani, Johan Beni (2025) Analisis Pengaruh Variasi Campuran Solvent-Vernis Dan Suhu Pengeringan Terhadap Kerekatan Dan Kekilapan Cat Pada Material Plat Baja St 41. Undergraduate thesis, Politeknik Negeri Jember.

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Abstract

This study aims to determine the effect of thinner (solvent) composition and oven drying temperature on the final result of painting, particularly in terms of paint adhesion and gloss level on ST 41 steel plate material. In the automotive industry, paint quality is crucial as it affects both the appearance and durability of materials. The research utilized three variations of thinner-clear coat mixtures (5%, 10%, and 15%) and three oven temperatures (40°C, 60°C, and 80°C).The results show that higher oven temperatures and greater thinner content tend to reduce the paint thickness. A temperature of 40°C produced the thickest paint layer, the highest gloss level, and the best adhesion. In contrast, a temperature of 80°C with a higher thinner mixture resulted in a thinner layer, lower gloss, and poor adhesion. In conclusion, a lower oven temperature combined with a moderate thinner ratio provides the best painting quality. This study is expected to serve as a reference for determining effective and efficient painting techniques in the automotive field.

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