The Science Behind Perfect Roller Painting: What Research Shows

A recent MIT study analyzed paint application methods, finding rollers provide the most consistent film thickness. "Rollers apply paint at 4-6 mils, the ideal range for durability," reports Dr. Alan Fischer. The research compared application speeds, showing rollers cover 150 sq ft/hour versus 90 sq ft for brushes. Advanced imaging revealed how roller naps release paint evenly when maintained at 40-50% saturation. The findings support using 9-inch rollers for walls and 4-inch for trim. Manufacturers are using these insights to develop next-generation covers with optimized fiber blends.